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1

Introduction to Oscilloscopes and Probes

TDS1000B and TDS2000B Series Oscilloscopes – Operator Training Kit

1-27

How Probes Affect Measurements

To display a signal on an oscilloscope, the signal is diverted
to the oscilloscope input circuit. Depending on the relative
impedance values, the addition of a probe to a test point can
cause loading of the signal source. This topic describes the
loading effects of probes on signals. These effects are
caused by probe impedance interacting with the signal
source impedance.

Signal Source Impedance

The value of the signal source impedance influences the
effect of probe loading. For example, with low source
impedance, a high-impedance 10X probe can have a
negligible loading effect. However, for high source
impedances, the signal at the test point can change
significantly due to the probe. This change in the signal is
because the probe impedance is connected in parallel with
the circuit impedance.

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Содержание TDS1000B Series

Страница 1: ...xx TDS1000B TDS2000B Series Digital Storage Oscilloscopes Operator Training Kit Manual P071221901 071 2199 01 1100111001010 11 0110011 11011 11 010100101101 001 1110110111 0101011 01010 ...

Страница 2: ......

Страница 3: ...TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Manual 071 2199 01 www tektronix com ...

Страница 4: ...privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc End users of this Tektronix product training document file are permitted to print any portion of this file or copy the electronic file for personal use Print or electronic reproduction of this product training document file for resale is strictly prohibited Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive ...

Страница 5: ... connect or disconnect probes or test leads while they are connected to a voltage source Connect the ground lead of the probe to earth ground only Replace Batteries Properly Replace batteries only with the proper type and rating specified Use Proper AC Adapter Use only the AC adapter specified for this product Use Proper Fuse Use only the fuse type and rating specified for this product Avoid Expos...

Страница 6: ...on statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symb...

Страница 7: ...substances into the environment and to reduce the use of natural resources we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately The symbol shown to the left indicates that this product complies with the European Union s requirements according to Directive 2002 96 EC on waste electrical and electronic equi...

Страница 8: ...Environmental Considerations TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit ...

Страница 9: ...f Voltage Probes 1 24 How Probes Affect Measurements 1 27 Summary 1 31 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 1 Introduction to TDS1000B and TDS2000B Series Oscilloscopes 2 3 Features of the TDS1000B and TDS2000B Series Oscilloscopes 2 6 Safety Precautions 2 11 Preliminary Functional Check 2 13 Introduction to the Training 1 Signal Board 2 16 Probe Compensation 2 20 ...

Страница 10: ...Switching the Input Coupling 3 6 VERTICAL Control MENU Buttons 3 12 Modifying the Vertical Scale of a Displayed Waveform 3 12 MATH MENU Controls 3 14 Adding Two Waveforms 3 14 Subtracting Two Waveforms 3 17 Multiplying Two Waveforms 3 20 Performing FFT Operations 3 23 Summary 3 26 Using HORIZONTAL Controls 4 1 HORIZONTAL Controls 4 2 Setting Up the HORIZONTAL Controls 4 3 Setting the Delay Time fo...

Страница 11: ...ing Trigger Holdoff to a Pseudo Random Signal 5 29 Assigning Trigger Holdoff to an AM Signal 5 31 Summary 5 36 Using Menu Function Controls 6 1 MENU Function Controls 6 3 ACQUIRE Menu Function Controls 6 6 Using the Peak Detect Acquisition Mode 6 8 Using the Average Acquisition Mode 6 12 DISPLAY Menu Function Controls 6 15 Selecting the Display Type 6 16 Using Persistence 6 19 Using the XY Display...

Страница 12: ...nd Recalling a Setup 6 43 Saving and Recalling a Waveform 6 48 UTILITY Menu Function Controls 6 51 Displaying the System Status 6 51 REF MENU Function Controls 6 53 Turning On Off a Reference Waveform 6 53 AUTORANGE Menu Function Controls 6 55 Automatic Adjustment of Oscilloscope Settings 6 55 Summary 6 57 Appendix A Training 1 Signal Board Signal Definitions A 1 Appendix B Glossary B 1 ...

Страница 13: ...iption Cross Reference Placed next to text that provides a link to details of the topic being referred Ease of Use Placed next to text that explains how a feature makes the oscilloscope easier to use Note Placed next to text that provides an important piece of information regarding a procedure or feature Objective Placed next to text that lists the objectives for the lessons Procedure Start Placed...

Страница 14: ...vi TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit ...

Страница 15: ... you to observe these signals to analyze the performance of their energy sources This module introduces you to oscilloscopes and the methods to measure electrical signals by using oscilloscopes and associated probes At the end of this module you will be able to Identify the types of oscilloscopes List the terms to describe the performance of oscilloscopes Identify the types of voltage probes Descr...

Страница 16: ...eir functions The section includes the following topics Introduction to Oscilloscopes Types of Oscilloscopes Oscilloscope Terminology Introduction to Oscilloscopes You use an oscilloscope to display electrical signals as waveforms A waveform is a graphical representation of a wave An oscilloscope receives an electrical signal and converts it into a waveform The waveform shows the change in voltage...

Страница 17: ...trical circuit Whether the signal is direct current DC or alternating current AC What part of the signal is noise You can also use oscilloscopes to measure electrical signals in response to physical stimuli such as sound mechanical stress pressure light or heat For example a television technician can use an oscilloscope to measure signals from a television circuit board while a medical researcher ...

Страница 18: ... contains various controls that help you analyze waveforms displayed on a graphical grid called a graticule The vertical or Y axis of the graticule typically represents voltage while the horizontal or X axis typically represents time Figure 1 1 shows how an oscilloscope displays voltage and time Figure 1 1 Oscilloscope display ...

Страница 19: ...onic equipment can be categorized into two types analog and digital Analog equipment use variable voltages while digital equipment use binary numbers that represent voltage samples Similarly oscilloscopes are categorized into analog and digital Figure 1 2 shows an analog and a digital oscilloscope Figure 1 2 Analog and digital oscilloscopes ...

Страница 20: ...loscope Figure 1 3 Block diagram of an analog oscilloscope When you connect an analog oscilloscope to a circuit the voltage signal from the circuit travels to the vertical deflection plates of the oscilloscope screen which is a phosphor coated cathode ray tube CRT As a result when an electron beam strikes the phosphor coating of the CRT a glowing dot appears When you apply voltage to the deflectio...

Страница 21: ...e glowing dot from left to right across the screen within a specified time interval When many sweeps occur in a rapid sequence the movements of the glowing dot blend into a solid line Together the horizontal sweeping and vertical deflecting actions are displayed as a signal graph on the screen You use triggering to stabilize a repeating signal Proper triggering ensures that the sweep begins at the...

Страница 22: ...ot display the waveform When signal frequencies exceed the display speed of the CRT the displayed signal is distorted attenuated or both You can use an analog oscilloscope to display rapidly varying signals in real time The phosphor based display of an analog oscilloscope has an intensity grading feature which makes the trace appear brighter where the signal features occur most frequently You can ...

Страница 23: ...onverter ADC An ADC converts the voltage being measured into a digital format A digital oscilloscope acquires a waveform as a series of signal samples which are stored in its memory and then reassembled for viewing on the screen Digital oscilloscopes are categorized into two types digital storage oscilloscopes DSO and digital phosphor oscilloscopes DPO Let us look at how these two types of digital...

Страница 24: ... called sample points The DSO contains a sample clock that determines the frequency at which the ADC takes samples The rate at which the ADC takes samples is called the sample rate and is measured in samples per second The sample points from the ADC are stored in the memory as waveform points These waveform points make one waveform record The number of waveform points used to make a waveform recor...

Страница 25: ...cilloscopes Operator Training Kit 1 11 Figure 1 5 shows the block diagram of a DSO Figure 1 5 Block diagram of a DSO A DSO contains a microprocessor represented by uP in the figure above that processes the signal manages display activities and interprets front panel controls ...

Страница 26: ...the oscilloscope display screen Every time a waveform triggers the cells that map to the display path of the waveform are updated with intensity information Intensity information increases in cells through which the waveform passes When the Digital Phosphor database is loaded on the display screen of the oscilloscope the screen shows intensified waveform areas in proportion to the frequency of occ...

Страница 27: ...TDS2000B Series Oscilloscopes Operator Training Kit 1 13 Figure 1 6 shows how a DPO works Figure 1 6 Block diagram of DPO Similar to a DSO a DPO also uses a microprocessor for display management measurement automation and analysis of the displayed waveforms ...

Страница 28: ...ogy related to the following categories Types of waves Waveform measurements Performance terms Types of Waves You use waveform shapes to analyze a signal Different types of waveforms represent different types of signals Waveforms are classified into the following groups Sine waves Square and rectangular waves Step and pulse waves Sawtooth and triangle waves Complex waves ...

Страница 29: ...es Operator Training Kit 1 15 Sine Waves A sine wave is a basic waveform that represents voltage change with time Signals produced by the oscillator circuit in a signal generator are sine waves Most AC power sources produce sine waves Figure 1 7 shows a sine wave Figure 1 7 Sine wave ...

Страница 30: ...quare wave represents voltage signals that turn on and off at regular intervals It is a standard wave used for testing amplifiers televisions radios and computer circuits A rectangular wave represents high and low time periods of a square wave that are unequal Figure 1 8 shows square and rectangular waves Figure 1 8 Square and rectangular waves ...

Страница 31: ... sudden change in voltage which may be the result of turning on an electric switch A pulse wave represents a sudden change in signal level followed by a return to the original level For example a pulse is generated if you turn on a power switch and then turn off the switch A pulse can represent the following information One bit traveling through a computer circuit A defect or a glitch in a circuit...

Страница 32: ...nd triangle waves represent a linearly changing voltage required to control a device A sawtooth wave has a rising rate of change which differs from its falling rate of change A triangle wave has a rising rate of change equal to its falling rate of change Figure 1 10 shows examples of sawtooth and triangle waves Figure 1 10 Sawtooth and triangle waves ...

Страница 33: ... 19 Complex Waves Some waveforms formed by a combination of the characteristics of sines squares steps and pulses are called complex waves Complex waves can represent signal information embedded in the form of amplitude phase and or frequency variations Figure 1 11 shows a complex wave Figure 1 11 Complex wave ...

Страница 34: ... determine specific characteristics of waveforms Frequency and Period Frequency represents the number of times a signal repeats itself in one second The frequency of a signal is measured in Hertz Hz Period represents the time in which a signal completes one cycle Figure 1 12 shows the frequency and period of a sine wave Figure 1 12 Frequency and period of a sine wave ...

Страница 35: ... use this phase information to calculate the time elapsed since the reference or beginning point of the sine wave Figure 1 13 shows phase along a sine wave Figure 1 13 Phase in a sine wave The term phase shift refers to the degrees of difference between two similar synchronous signals Figure 1 14 shows a phase shift between two sine waves Figure 1 14 Phase shift between two sine waves ...

Страница 36: ...f the displayed sine wave reduces to 70 7 of the amplitude of the applied sine wave signal Rise Time Rise time is the time taken by a step or a pulse to rise from 10 to 90 of its amplitude level Vertical Sensitivity Vertical sensitivity is the range within which an amplifier can amplify a weak signal Vertical sensitivity is expressed in volts per division volts div Sweep Speed Sweep speed is the s...

Страница 37: ...Voltage Probes How Probes Affect Measurements Introduction to Probes A probe is an input device for an oscilloscope You use a probe to physically connect a signal source to an oscilloscope A probe has two connection tips that connect the probe to a circuit element A probe also has a cable to transmit signals from a circuit to an oscilloscope An appropriate probe has a negligible effect on the sign...

Страница 38: ... and active Most probes are packaged with standard accessories These accessories usually include a ground lead clip that you can attach to a ground signal source a compensation adjustment tool and one or more probe tip accessories to help connect the probe to test points Figure 1 15 shows a passive probe and standard accessories Figure 1 15 A passive voltage probe with accessories ...

Страница 39: ...s where signal amplitudes require the best vertical sensitivity of an oscilloscope a 1X probe can be used You can use a switchable 1X 10X probe for a mix of low amplitude signals 10 mV and moderate to high amplitude signals 10 V or more A switchable 1X 10X passive voltage probe provides the characteristics of both 1X and 10X probes 1X and 10X passive voltage probe modes have different characterist...

Страница 40: ...t impedance of an active FET voltage probe allows measurements to be made at test points of unknown impedance with lower risk of loading effects As a result active voltage probes can be used on high impedance circuits that are sensitive to loading On the other hand passive voltage probes cause more loading effects especially at high frequencies The voltage range of active FET voltage probes is 0 6...

Страница 41: ... topic describes the loading effects of probes on signals These effects are caused by probe impedance interacting with the signal source impedance Signal Source Impedance The value of the signal source impedance influences the effect of probe loading For example with low source impedance a high impedance 10X probe can have a negligible loading effect However for high source impedances the signal a...

Страница 42: ...ure the signal at a test point where the impedance is lower For example cathodes emitters and sources have lower impedances than plates collectors and drains To reduce the loading effect of a probe on a signal test point the signal amplitude transmitted to the oscilloscope input must be reduced or attenuated The attenuated signal must be manually compensated when using a high impedance passive att...

Страница 43: ...ng increases the rise and fall times on fast transition waveforms and decreases the amplitude of high frequency details in waveforms When the output of a pulse generator is tested the probe input capacitance and resistance will interact with the pulse generator impedance Probe resistance is usually ignored because it is generally much greater than the generator resistance However probe capacitance...

Страница 44: ...ar on the oscilloscope display with a maximum of 29 3 decrease in amplitude To ensure a sine wave amplitude error of not more than 3 the bandwidth of the oscilloscope and probe combination should range between three to five times that of the circuit being tested Bandwidth and rise or fall time have an inverse relationship The rise time of the probe and oscilloscope combination should be three to f...

Страница 45: ...scope displays a waveform that represents voltage change with time Oscilloscopes are available in analog and digital types Digital oscilloscopes are of two types digital storage oscilloscopes DSO and digital phosphor oscilloscopes DPO A DSO uses an ADC to convert the voltage being measured into a digital format A DPO uses electronic Digital Phosphor to display a waveform ...

Страница 46: ...s o Sawtooth and triangle waves o Complex waves You use a probe to physically connect a signal source to an oscilloscope You need to compensate a passive attenuation probe to transfer an accurate signal from the circuit being tested to the oscilloscope There are two types of voltage probes active voltage probes and passive voltage probes Probes affect the signal generated by a circuit by impedance...

Страница 47: ...s for correct calibration You will also learn how to power and use the Training 1 signal board that will be used in operational procedures later in this manual You will then learn about the basic features specifications and primary controls of a TDS1000B TDS2000B oscilloscope The two final sections of this module covering Primary Controls and Enhanced Features are also covered in your Operator Man...

Страница 48: ... safety precautions to be observed before using an oscilloscope Set up a TDS1000B TDS2000B oscilloscope for general use Identify the features of the Training 1 signal board Compensate a probe Identify the primary controls of a TDS1000B TDS2000B oscilloscope Identify the enhanced features of a TDS1000B TDS2000B oscilloscope TDS1000B refers to all models in the TDS1000B series of oscilloscopes and T...

Страница 49: ...TDS2014B TDS2022B and TDS2024B All the models are digital real time oscilloscopes and share most of the features and characteristics that will be covered in this operator training manual You can use the TDS1000B and TDS2000B oscilloscopes to perform tasks such as designing debugging verifying and servicing electronic circuits The low cost high performance small size and ease of use of these oscill...

Страница 50: ...the TDS1000B and TDS2000B Series Oscilloscopes 2 4 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 1 shows a TDS1001B digital storage oscilloscope Figure 2 1 The TDS1001B digital storage oscilloscope ...

Страница 51: ...the TDS1000B and TDS2000B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 5 Figure 2 2 shows a TDS2024B digital storage oscilloscope Figure 2 2 The TDS2024B digital storage oscilloscope ...

Страница 52: ... versatile and flexible DSOs They have a low price performance ratio which makes them very popular with educational institutions and companies designing consumer oriented computing and communication devices The TDS1000B and TDS2000B Series Oscilloscopes provide the following features Ease of use High bandwidth and sample rate Enhanced triggering features Automatic measurements for signals You will...

Страница 53: ... below enable you to use the oscilloscopes with ease Context sensitive HELP menu Color display in all the TDS2000B models Multilanguage on screen menus Multilanguage front panel templates Separate VERTICAL controls for each channel Smart AUTOSET and AUTORANGE This will be covered in a later section Probe Check to ensure correct compensation and probe attenuation factor ...

Страница 54: ...on that recalls the factory settings in a single step Trigger frequency readout Delayed time base Advanced video trigger capability Removable data storage via USB flash drive port Direct print via USB Device port to any PictBridge compatible printer PC communication and GPIB control via USB device port Variable persistence display Setup and waveform storage ...

Страница 55: ...te of the various models are listed Model Channels Bandwidth and Sample Rate TDS1001B 2 40 MHz 500 MS s TDS1002B 2 60 MHz 1 0 GS s TDS1012B 2 100 MHz 1 0 GS s TDS2002B 2 60 MHz 1 0 GS s TDS2004B 4 60 MHz 1 0 GS s TDS2012B 2 100 MHz 1 0 GS s TDS2014B 4 100 MHz 1 0 GS s TDS2022B 2 200 MHz 2 0 GS s TDS2024B 4 200 MHz 2 0 GS s High bandwidth coupled with a high sample rate makes the oscilloscopes idea...

Страница 56: ... width from 33 ns to 10 sec External trigger on all models Improved video triggering with line selectable triggering Trigger Frequency Readout from trigger source Automatic Measurements for Signals You can select up to five of the eleven possible automatic parametric measurements with each measurement on any displayed channel s waveform Min Period Max Frequency Rise Time Cycle RMS Fall Time Mean P...

Страница 57: ...amage to the oscilloscope you must observe certain safety precautions while setting up the TDS1000B and TDS2000B Series Oscilloscopes The safety features are as follows Observe and understand all ratings and terminal markings on the oscilloscope before you start using it This information is specified in your user manual Use the power cord designed for the oscilloscope The power cord must have the ...

Страница 58: ...ut or output terminals of the oscilloscope Connect the probe ground lead only to the ground potential Ensure that you do not operate the oscilloscope either with any panels removed or with exposed circuitry Ensure that the operational environment of the oscilloscope is properly ventilated and is not humid Do not connect any oscilloscope input to any AC DC or spike voltage over the input rating Do ...

Страница 59: ...oscilloscope to an AC supply by using the appropriate power cord and adapters 2 On the top of the oscilloscope push the ON OFF button to turn on the power 3 Wait until the display shows that the oscilloscope has passed all self tests 4 On the top of the front panel push the DEFAULT SETUP button The default attenuation factor for the probe is set at 10X 5 Connect a P2220 passive voltage probe provi...

Страница 60: ...h the probe tip to the 5V 1kHz connector on the front panel and the probe ground lead to the ground connector on the front panel 7 On the top of the front panel push the AUTOSET button You will observe a square wave of about 5 volts peak to peak at a frequency of 1 kHz as shown in Figure 2 3 Figure 2 3 Square wave of 5 volts peak to peak at 1 kHz ...

Страница 61: ...l 1 off and push the CH2 MENU button to activate channel 2 Move the probe to CH2 CH3 or CH4 on the front panel and repeat steps 7 and 8 for CH2 CH3 or CH4 9 Repeat steps 7 and 8 for channels 3 and 4 if you are using a TDS2004B TDS2014B or the TDS2024B Your oscilloscope has passed the functional check if you observe a square wave similar to the waveform shown in Figure 2 3 for all channels ...

Страница 62: ...1000B and TDS2000B Series Oscilloscopes Operator Training Kit Introduction to the Training 1 Signal Board You will use the Training 1 signal board for most procedures in this Operator Training Kit Figure 2 4 shows the Training 1 signal board Figure 2 4 The Training 1 signal board ...

Страница 63: ...ou can use either a 9 volt battery NEDA type 1604 Alkaline recommended or a line transformer with an output of 9 volts 1A to power the Training 1 signal board A 9 volt battery is supplied with your Training 1 signal board However for long term use you can also order the appropriate wall transformer with the recommended output for your country from Tektronix Part Numbers Wall Transformer Accessorie...

Страница 64: ...Analog PWR and Digital PWR indicator lights are off wall power is still supplied to the Training 1 signal board The Training 1 signal board has a three step switch 1 When you push POWER once the analog signals of the Training 1 signal board are activated 2 When you push POWER twice both analog and digital signals of the Training 1 signal board are activated 3 When you push POWER the third time the...

Страница 65: ...rovide the common signal reference See Appendix A Training 1 Signal Board Signal Definitions for a description of the signals from each pin of the Training 1 signal board Appendix A starts on page A 1 When you use the Training 1 signal board in analog only mode a 9 volt battery will last for approximately 30 hours However when you use the Training 1 signal board in analog digital mode a 9 volt bat...

Страница 66: ...e oscilloscope to get a flat step response Probes are designed to match the inputs of specific oscilloscope models However there are slight variations between oscilloscopes and even between different input channels in an oscilloscope To minimize these variations attenuating passive probes 10X and 100X probes have built in compensation networks You need to adjust the network to compensate the probe...

Страница 67: ...ttings from the previous preliminary functional check procedure page 2 13 To compensate a probe by using the PROBE CHECK feature follow these steps 1 Connect the probe to any channel BNC such as CH1 2 Attach the probe tip to the probe compensation signal named 5V 1kHz on the front panel Attach the probe ground lead to the ground pin next to the probe compensation signal 3 Push the PROBE CHECK butt...

Страница 68: ...00B Series Oscilloscopes 2 22 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit You should observe a square waveform displayed on the oscilloscope similar to the waveform shown in Figure 2 5 Figure 2 5 CH1 probe compensation signal ...

Страница 69: ...2000B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 23 However the waveform could also have distorted corners similar to the waveforms shown in Figure 2 6 or Figure 2 7 Figure 2 6 Probe undercompensated ...

Страница 70: ...n measurements To compensate the probe correctly use the probe adjustment tool provided with the probe The probe adjustment tool resembles a small screwdriver You insert the probe adjustment tool in a small slot just behind the probe connector head in the probe body where it is attached to the oscilloscope BNC input connector After probe adjustment for each channel you will observe a square wavefo...

Страница 71: ...or Training Kit 2 25 Primary Controls The TDS1000B and TDS2000B Series Oscilloscopes provide different controls to modify different components of the displayed waveform This section describes the following primary controls on the front panel VERTICAL Controls HORIZONTAL Controls TRIGGER Controls MENUS Function Controls ...

Страница 72: ...r modify the waveform vertical scale position input coupling bandwidth and other signal conditioning These controls are needed to scale position and combine or modify a wide range of signals so they can be viewed appropriately on the oscilloscope display The VERTICAL controls consist of the following three subsections VERTICAL control knobs VERTICAL control menu buttons MATH MENU control button ...

Страница 73: ...0B Series Oscilloscopes Operator Training Kit 2 27 The three subsections of the VERTICAL controls are located on the front panel as shown in Figure 2 8 The TDS1000B and TDS2000B oscilloscopes have a set of VERTICAL controls for each channel Figure 2 8 TDS1001B and TDS2024B VERTICAL controls ...

Страница 74: ... the VOLTS DIV knob to set and change the vertical voltage scale for the displayed waveform Consider this example If the channel 1 volts div setting on the displayed readout is CH1 5 00V then each vertical division for channel 1 on the graticule represents 5 Volts and the entire graticule of 8 vertical divisions can display 40 Volts peak to peak POSITION knob You use the POSITION knob of the VERTI...

Страница 75: ...side screen menu based VERTICAL controls for a channel to select various functions such as the input coupling type bandwidth limit of the channel and probe attenuation To activate the VERTICAL menu based functions for Channel 1 perform the following step In the VERTICAL section on the front panel push the CH1 MENU button The menu for Channel 1 is activated on the display You can control each menu ...

Страница 76: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 30 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 9 Menu based options for VERTICAL controls ...

Страница 77: ...of a channel at either the bandwidth of the oscilloscope 40 MHz 60 MHz 100 MHz or 200 MHz or 20 MHz A lower bandwidth limit decreases the displayed noise and results in a clearer display This lowered bandwidth also limits the display of higher speed details on the selected signal Volts Div You use this menu option to select the incremental sequence of the VOLTS DIV knob as Coarse or Fine The Coars...

Страница 78: ...to set the probe attenuation of 0 2X 1X 2X 5X 10X 50X 100X 1000x Warning For safety this menu must be set correctly when working with high voltages For example if you are using the P2220 probe set to 10X and this menu is set to 1X the oscilloscope will incorrectly show a 20 volt signal on the screen safe to touch when there is a 200 volt signal connected not safe Note When the attenuation switch o...

Страница 79: ...and TDS2000B Series Oscilloscopes Operator Training Kit 2 33 Invert You use this menu option to invert the displayed waveform vertically with respect to the ground level Refer to the section Using VERTICAL Controls starting on page 3 1 for procedures that use the VERTICAL controls ...

Страница 80: ...o add two waveforms subtract one waveform from another multiply two waveforms or perform a Fast Fourier Transform FFT on a waveform To activate the MATH MENU menu based functions perform the following step In the VERTICAL section push the MATH MENU button The menu for the MATH operations is activated on the display Figure 2 10 shows the menu based options for MATH controls You control each menu op...

Страница 81: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 35 Figure 2 10 Examples of MATH MENU functions ...

Страница 82: ...nu option to select the type of operation you want to perform such as subtraction addition multiplication or FFT Each operation activates a separate menu CH1 CH2 This menu option is activated when you select the addition operation for adding one waveform to another You can perform the CH1 CH2 operation in all models In the TDS2004B TDS2014B and TDS2024B models you can also perform CH3 CH4 ...

Страница 83: ...04B TDS2014B and TDS2024B models you can also perform CH3 CH4 and CH4 CH3 operations CH1XCH2 This menu option is activated when you select the multiplication x operation to multiply one waveform to another You can perform CH1XCH2 operation in all models In the TDS2004B TDS2014B and TDS2024B models you can also perform CH3XCH4 operation Position You use this menu option to move the math waveform up...

Страница 84: ...FFT option to perform an FFT operation on the displayed waveform The FFT menu contains the following selections Source signal as CH1 CH2 CH3 and CH4 The choice is limited to CH1 and CH2 in the 2 channel models Window types as Hanning Rectangular or Flattop FFT Zoom levels as X1 X2 X5 or X10 Refer to the section MATH MENU Controls starting on page 3 14 for procedures involving the MATH controls ...

Страница 85: ...the horizontal acquisition and display of a waveform These controls are needed to scale and position the time or frequency axis of the display over the wide range of signals that need to be measured You can divide the HORIZONTAL controls into the following two subsections HORIZONTAL control knobs HORIZONTAL control menu buttons Figure 2 11 shows how these two subsections are arranged on the front ...

Страница 86: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 40 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 11 TDS1012B and TDS2024B HORIZONTAL controls ...

Страница 87: ...f the display is the time reference for expanding and compressing waveforms If the sec div setting is 100 milliseconds ms then each horizontal division on the graticule represents 100 ms and the entire graticule of 10 horizontal divisions can display 1000 ms or 1 second POSITION knob You use the POSITION knob of the HORIZONTAL controls to move the displayed waveform to the left or the right of the...

Страница 88: ...s to select various commands for the HORIZONTAL controls To activate the HORIZONTAL menu based functions perform the following step In the HORIZONTAL section on the front panel push the HORIZ MENU button The HORIZONTAL menu is activated on the display You can control each menu option by pushing the side screen button next to the option Figure 2 12 shows the menu based options for HORIZONTAL contro...

Страница 89: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 43 Figure 2 12 Menu based options for HORIZONTAL controls ...

Страница 90: ...position and width of the window zone with the horizontal POSITION and SEC DIV knobs A window zone is an area defined by two vertical dotted line cursors on the oscilloscope display Window You use this menu option to magnify the section of the waveform visible within the window zone to full horizontal screen size Set Trigger Holdoff You use this menu option to specify the trigger holdoff time in s...

Страница 91: ...raining Kit 2 45 TRIGGER Controls You use the TRIGGER controls to reference the acquisition of signals The TRIGGER controls enable you to set the trigger threshold conditions for an acquisition and to assign a holdoff time to the trigger Figure 2 13 shows the TRIGGER controls Figure 2 13 TDS1012 and TDS2024 TRIGGER controls ...

Страница 92: ...el consists of the following LEVEL knob You use this knob to set the trigger Level for a trigger TRIG MENU button You use this button to display the trigger menu The trigger menu contains options for trigger Type Source Slope Mode and Coupling SET TO 50 button You use this button to set the trigger level to the vertical midpoint between the amplitude peaks of a trigger signal ...

Страница 93: ...ct SINGLE SEQ with the front panel button for this mode TRIG VIEW button You use this button to display the trigger waveform instead of the channel waveform You can use this button to check how trigger settings such as trigger coupling affect the trigger signal You need to keep this button pressed to view the trigger waveform Warning If the oscilloscope is incorrectly triggered the display may not...

Страница 94: ...ning Kit TRIG MENU button To activate the TRIGGER menu based functions perform the following step In the TRIGGER section on the front panel push the TRIG MENU button The TRIGGER menu is activated on the display Figure 2 14 shows the menu based options for the TRIGGER controls Figure 2 14 Menu based options for the TRIGGER controls ...

Страница 95: ...elect The Edge trigger option causes the oscilloscope to trigger on the rising or falling edge of the input signal when the signal crosses the trigger level You can select various menu options for Edge triggering Menu Option Description Edge You select this menu to trigger the oscilloscope on the rising or falling edge of an input signal Source You use this menu option to select an input source fo...

Страница 96: ... the type of triggering as Normal or Auto The Normal trigger mode triggers only on a valid signal Auto the default triggering mode forces acquisitions to occur in the absence of a triggering signal It also forces an untriggered scanning waveform at time base settings slower than 50 0 ms Another trigger mode is SINGLE SEQ In this mode only one triggered acquisition sequence is allowed each time the...

Страница 97: ...to the trigger circuitry You can set the trigger coupling as AC DC Noise Reject HF Reject and LF Reject Refer to Appendix B for definitions of the various coupling types You use Video triggering to trigger on an NTSC PAL or SECAM standard video signal You can select various menu options for Video triggering Menu Option Description Video You select this menu to trigger the oscilloscope on an NTSC P...

Страница 98: ...for the TDS2004B TDS2014B and TDS2024 oscilloscopes Polarity You use this menu option to select Normal or Inverted polarity Inverted polarity triggers a video signal when the input signal is inverted Sync You use this menu option to specify whether triggering will occur on Fields or Lines of a video signal Turn the Multipurpose knob to vary a line number when you select Line Number for the Sync op...

Страница 99: ...00B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 53 A NTSC signal is shown in Figure 2 14a This signal has been captured using the Autoset feature The fields are shown by default Figure 2 14a Video fields ...

Страница 100: ...eries Oscilloscopes 2 54 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit You can also view the lines by pushing the appropriate side screen menu button The video lines of a NTSC signal are shown in Figure 2 14b Figure 2 14b Video lines ...

Страница 101: ...2 55 You can set the oscilloscope to trigger on a particular line This feature is very useful in production lines where robots fitted with electronic eyes can detect errors related to fitting of parts Figure 2 14c shows line 263 of a NTSC signal The oscilloscope has been set to trigger on line 263 Figure 2 14c Triggering on video lines ...

Страница 102: ...conditions are provided by the Source When and Pulse Width options Source You use this menu option to select an input source for a trigger signal You can select input sources CH1 CH2 Ext and Ext 5 You can also select CH3 and CH4 as input sources for the TDS2004B TDS2014B and TDS2024B oscilloscopes When You use this menu to compare the pulse width of the input signal with the condition defined by t...

Страница 103: ...hreshold pulse width The oscilloscope will trigger according to the condition set in the When field To set the threshold select Pulse Width and use the Multipurpose knob to choose a value Polarity You use this menu to trigger the oscilloscope on positive or negative pulses Mode You use this menu to choose between Auto and Normal modes of triggering SINGLE SEQ trigger mode is also possible ...

Страница 104: ...ng Kit Coupling You use this menu option to select the components of the trigger signal which are applied to the trigger circuitry You can set the trigger coupling as AC DC Noise Reject HF Reject and LF Reject Refer to the section Using TRIGGER Controls starting on page 5 1 for procedures that involve the use of the TRIGGER controls ...

Страница 105: ...rols at the top of the front panel to perform various functions such as saving and recalling setups and waveforms taking automatic waveform measurements and modifying the acquisition settings This section contains labeled pictures to describe the following Menu Buttons ACQUIRE button DISPLAY button CURSOR button MEASURE button SAVE RECALL button UTILITY button REF MENU button AUTORANGE button ...

Страница 106: ...illoscopes Operator Training Kit The Menu Function Controls consist of eight menu based function buttons When you push a menu function button the associated menu option options on the oscilloscope screen are activated Figure 2 15 shows the front panel menu function controls Figure 2 15 Menu function controls ...

Страница 107: ...E Menu Function Controls to regulate the signal acquisition and processing system and select different types of acquisition modes for a signal To activate the ACQUIRE menu push the ACQUIRE menu button Figure 2 16 shows the menu based options for the ACQUIRE menu function controls You can control each menu option by pushing the side screen button next to the option Figure 2 16 ACQUIRE menu ...

Страница 108: ...s the default mode for signal acquisition Peak Detect You use this menu option to select the Peak Detect mode for signal acquisition Average You use this menu option to select the Average mode to acquire signals by taking the average of a number of unique waveforms Averaging allows reduction of noise in the display Averages You use this menu option to select the number of waveforms to average for ...

Страница 109: ...on controls DISPLAY Menu Function Controls You use the DISPLAY menu controls to select the display characteristics for waveforms You use the DISPLAY menu to specify the display type persistence display format and display contrast To activate the DISPLAY menu push the DISPLAY menu button Figure 2 17 shows the menu based options for the DISPLAY menu function controls You can control each menu option...

Страница 110: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 64 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 17 DISPLAY menu ...

Страница 111: ...he waveform will be displayed in dots or as vectors Persist You use this menu option to specify the duration for which each sample point is displayed Format You use this menu option to specify whether the waveform is displayed in the YT format or in the XY format The YT format displays the changes in voltage with relation to time The XY format displays CH1 and CH2 on the horizontal and vertical ax...

Страница 112: ...as black on white Normal or as white on black Invert You can only select this option in the TDS1001B TDS1002B and TDS1012B oscilloscopes Refer to the section DISPLAY Menu Function Controls starting on page 6 15 for procedures using the DISPLAY menu function controls CURSOR Menu Function Controls You use the CURSOR Menu Function Controls to make parametric amplitude and time measurements on a selec...

Страница 113: ...loscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 67 Figure 2 18 shows the menu based options for the CURSOR menu function controls You control each menu option by pushing the side screen button next to the option Figure 2 18 CURSOR menu ...

Страница 114: ...measurements of Amplitude or Time Source You use this menu option to choose different cursor signal sources such as CH1 CH2 MATH Ref A or Ref B for a displayed waveform on 2 channel oscilloscopes In addition 4 channel oscilloscopes have CH3 CH4 Ref C and Ref D as additional cursor signal sources Delta You use this menu display to observe the numerical difference between the quantities represented ...

Страница 115: ...e time referenced to the trigger position or the voltage referenced to the ground Cursor 2 You use this menu display to adjust the position of cursor 2 and to observe the quantity represented by cursor 2 This could either be time referenced to the trigger position or voltage referenced to the ground Cursor selections are not available for DISPLAY Format XY Refer to the section CURSOR Menu Function...

Страница 116: ...urements of waveforms There are 11 types of available measurements from which you can display up to five at a time To activate the MEASURE menu push the MEASURE menu button All the menu options display CH1 None by default Figure 2 19 shows the menu based options for the MEASURE menu You can control each menu option by pushing the side screen button next to the option When you do this a selection a...

Страница 117: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 71 Figure 2 19 MEASURE menu ...

Страница 118: ...scopes The options CH3 and CH4 are available on 4 channel oscilloscopes Type You use this menu option to specify the type of measurement to be made for each source selection You can select from 11 types of measurements for each of the 4 possible source selections in 4 channel oscilloscopes and 2 possible source selections in 2 channel oscilloscopes Refer to MEASURE Menu Function Controls starting ...

Страница 119: ...h on the TDS2014 and TDS2024 oscilloscopes from non volatile memory or to save and recall oscilloscope setups display images and or waveforms from a USB flash drive To activate the SAVE RECALL menu push the SAVE RECALL menu button Figure 2 20a shows the menu based save options for the SAVE RECALL menu function controls Figure 2 20b shows the menu based recall options for the SAVE RECALL menu funct...

Страница 120: ...h the TDS1000B and TDS2000B Series Oscilloscopes 2 74 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 20a Save options for the SAVE RECALL menu Figure 2 20b Recall options for the SAVE RECALL menu ...

Страница 121: ...all type that you select The Save All option configures the oscilloscope to save a display image oscilloscope setup and the waveform data for each activated channel and reference waveform in one folder on a USB flash drive You can select various menu options for Save All feature Menu Option Description Save All You use this menu option to save a display image oscilloscope setup and the waveform da...

Страница 122: ...be saved About Save All You use this menu option to display the help information for Save All function The Save Image option configures the oscilloscope to save a display image on a USB flash drive You can select various menu options for Save Image function Menu Option Description Save Image You use this menu option to save a display image a USB flash drive File Format You use this menu option to ...

Страница 123: ...er where the display image file is to be saved Save You use this menu option to save the display image to the automatically generated file name in the current USB flash drive folder The Save Setup option configures the oscilloscope to save the current oscilloscope setup You can select various menu options for Save Setup function Menu Option Description Save Setup You use this menu option to save t...

Страница 124: ...is saved to a location in nonvolatile setup memory Setup or on a USB flash drive File Setup You use this menu option to specify which nonvolatile setup memory location to save to Select Folder You use this menu option to specify the USB flash drive folder where the setup file is to be saved Save You use this menu option to save the display image to the automatically generated file name in the curr...

Страница 125: ... Waveform You use this menu option to save the specified waveform data to one of 2 4 on 4 channel models non volatile memory locations on the oscilloscope or to a USB flash drive Save To You use this menu option to choose whether the current oscilloscope setting is saved to a location in nonvolatile reference memory Ref or on a USB flash drive File Source You use this menu option to specify which ...

Страница 126: ...atically generated file name in the current USB flash drive folder The Recall Setup option recalls a saved oscilloscope setup You can select various menu options for Recall Setup function Menu Option Description Recall Setup You use this menu option to recall a saved oscilloscope setup from a non volatile memory location or from a USB flash drive Recall From You use this menu option to choose whet...

Страница 127: ...h drive folder where the setup file is to be recalled from Recall You use this menu option to recall the saved oscilloscope settings from the specified nonvolatile memory location or from the specified USB flash drive file The Recall Waveform option recalls a saved waveform file You can select various menu options for Recall Waveform function Menu Option Description Recall Waveform You use this me...

Страница 128: ... recall the waveform to Select File You use this menu option to specify the USB flash drive folder where the setup file is to be recalled from Recall You use this menu option to recall the saved waveform file from the specified USB flash drive file to the specified reference memory location Refer to SAVE RECALL Menu Function Controls starting on page 6 43 for procedures using the SAVE RECALL menu ...

Страница 129: ...ou use the UTILITY Menu Function Controls to access the various oscilloscope setup utility functions You can use the UTILITY Menu Function Controls to check the system status set up hard copy and communication utilities perform self calibration for the oscilloscope and change the language used in the oscilloscopes To activate the UTILITY menu push the UTILITY menu button ...

Страница 130: ...es 2 84 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 21 shows the menu based options for the UTILITY menu function controls You can control each menu option by pushing the side screen menu button next to the option Figure 2 21 UTILITY menu ...

Страница 131: ...HORIZONTAL and TRIGGER controls Options You use this menu option to configure the rear USB port set up printing utilities GPIB address set date and time of the oscilloscopes internal clock and calendar and view the error log generated during signal measurements Do Self Cal You use this menu option so that a TDS1000B TDS2000B oscilloscope performs self calibration File Utilities You use this menu o...

Страница 132: ...e screen menu from the various languages such as English French German Italian Spanish Portuguese Chinese Simplified Chinese Japanese and Korean Refer to UTILITY Menu Function Controls starting on page 6 51 for a procedure using the UTILITY menu function controls REF MENU Function Controls You use the REF MENU Function Controls to turn on and off reference waveforms To activate the REF MENU push t...

Страница 133: ...scopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 87 Figure 2 22 shows the menu based options for the REF MENU function controls You can control each menu option by pushing the side screen menu button next to the option Figure 2 22 REF MENU ...

Страница 134: ...r Training Kit Menu Option Description Ref X You use this menu option to turn on and off Reference X waveform AUTORANGE Menu Function Controls You use the AUTORANGE Menu Function Controls to have the oscilloscope automatically adjust setup values to track a signal To activate the AUTORANGE menu push the AUTORANGE menu button ...

Страница 135: ... TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 89 Figure 2 23 shows the menu based options for the AUTORANGE menu function controls You can control each menu option by pushing the side screen menu button next to the option Figure 2 23 AUTORANGE menu ...

Страница 136: ... turns on adjacent to the AUTORANGE button that indicates when the function is active Vertical and Horizontal You use this menu option to set up the AUTORANGE feature to track and adjust both the vertical and horizontal axes Vertical Only You use this menu option to set up the AUTORANGE feature to track and adjust only the vertical axis Horizontal Only You use this menu option to set up the AUTORA...

Страница 137: ...pes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 91 Undo Auto ranging You use this menu option to recall the previous setup Refer to AUTORANGE Menu Function Controls starting on page 6 55 for a procedure using the AUTORANGE menu function controls ...

Страница 138: ...it Enhanced Features The TDS1000B and TDS2000B Series Oscilloscopes contain built in procedures that enable you to perform both routine and complex tasks quickly The controls that provide these enhanced features are HELP AUTOSET DEFAULT SETUP SINGLE SEQ PRINT SAVE Help The Help feature is comprised of 2 components Help System Help Wizard ...

Страница 139: ...o provides descriptive information on various menus and controls that you can access at any time The Help system supports information gathering that is both index based and context sensitive To activate the HELP menu push the HELP menu button Index Help Feature The Index Help feature provides a list of topics arranged in an alphabetical order Figure 2 24 shows the menu based options for the HELP m...

Страница 140: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 94 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 24 Index Help menu ...

Страница 141: ...escription Show Topic You use this menu to display the selected topic or hyperlink Page Up You use this menu to view the previous page Page Down You use this menu to view the next page Back You use this menu to navigate back to the hyperlink or topic last accessed Exit You use this menu to exit from Help and return to the screen displaying the waveform ...

Страница 142: ...topics by navigating through the hyperlinks using the multipurpose knob and then selecting the appropriate hyperlink Hyperlinks These are links to other topics and are in the form of phrases marked by angle braces To view the topics navigate to the hyperlink using the multipurpose knob and push the appropriate side screen menu button to select the Show Topic option ...

Страница 143: ... this section you will look at the Context Sensitive Help feature This feature enables you to obtain information about the control or menu you are using The following procedure will enable you to gather information on how to use the UTILITY MENU To use the Context Sensitive Help feature follow these steps 1 In the MENUS section push the UTILITY button 2 On the top of the front panel push the HELP ...

Страница 144: ...2 Getting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 98 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 25 HELP screen ...

Страница 145: ...00B Series Oscilloscopes TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 99 Figure 2 26 shows the menu options for HELP You can control each menu option by pushing the side screen button next to the option Figure 2 26 HELP menu ...

Страница 146: ...c You use this menu to display the selected topic or hyperlink Index You use this menu to display the list of all the topics in the Help system Help on Help You use this menu to view the topics covered in the Help feature Back You use this menu to navigate back to the hyperlink or the topic last accessed Exit You use this menu to return to the screen displaying the waveform ...

Страница 147: ...ges at the bottom of the screen It conveys the following types of information Directions to use another menu such as when you push the TRIG MENU button Suggestions for your next possible action such as the action to take after you push the MEASURE button Information about the action that the oscilloscope just performed such as when you push the DEFAULT SETUP button Information about the waveform s...

Страница 148: ...ting Started with the TDS1000B and TDS2000B Series Oscilloscopes 2 102 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit Figure 2 27 Help on Help with Help Wizard at the bottom of the display ...

Страница 149: ...channels for signals and displays only those channels with waveforms Signals are displayed when one of the following conditions is fulfilled If one or more channels have signals the signal with the lowest frequency is used for the trigger source If no signal is detected on any channel the trace of the lowest numbered channel that was last used as a trigger is displayed If no signal is detected and...

Страница 150: ...1000B and TDS2000B Series Oscilloscopes Operator Training Kit The Autoset function can detect and display three types of signals Moreover it also displays a menu to view various aspects of the signal The Autoset function can detect the following signals Sine Square or Pulse Video ...

Страница 151: ...1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 105 Sine The oscilloscope displays the following options when a sine wave or a similar signal is detected by the Autoset function These options are shown in Figure 2 28 Figure 2 28 AUTOSET options for sine waves ...

Страница 152: ...lays Cycle RMS Frequency Period and Peak to Peak automatic measurements Single cycle sine You use this menu option to set the horizontal scale to display about one cycle of a waveform The oscilloscope displays Mean and Peak to Peak automatic measurements FFT You use this menu option to convert the input time domain signal into its sine wave frequency spectral components and display the result as a...

Страница 153: ...000B Series Oscilloscopes Operator Training Kit 2 107 Square Wave or Pulses The oscilloscope displays the following options when a square wave or a signal similar to it is detected by the Autoset function These options are shown in Figure 2 29 Figure 2 29 AUTOSET options for square waves ...

Страница 154: ...al and horizontal scaling The oscilloscope displays Mean Frequency Period and Peak to Peak automatic measurements Single cycle square You use this menu option to set the horizontal scale so that it displays about one cycle of the waveform The oscilloscope displays Min Max Mean and Positive Width automatic measurements Rising Edge You use this menu option to display the rising edge The oscilloscope...

Страница 155: ...1000B and TDS2000B Series Oscilloscopes Operator Training Kit 2 109 Falling Edge You use this menu option to display the falling edge The oscilloscope displays Fall Time and Peak to Peak automatic measurements Undo Setup You use this menu option to recall the previous setup ...

Страница 156: ... Video The oscilloscope displays the following options when a standard NTSC PAL or SECAM video signal is detected by the Autoset function These options are shown in Figure 2 30 Figure 2 30 AUTOSET options for video signal Menu Option Description ALL Fields You use this menu option to display fields as the oscilloscope triggers on all fields ...

Страница 157: ... display all lines Line Number You use this menu option to display a specified line Turn the USER SELECT knob to select a specific line number that the oscilloscope uses as a trigger Odd Field You use this menu option to trigger on and display odd fields Even Field You use this menu option to trigger on and display even fields Undo Autoset You use this menu option to recall the previous setup ...

Страница 158: ... SETUP button the oscilloscope displays the CH1 waveform and removes all other waveforms SINGLE SEQ Feature This feature enables you to capture a single acquisition sequence of the selected input signals when you press the SINGLE SEQ button This sequence is one trigger for the ACQUIRE Sample and ACQUIRE Peak Detect modes This sequence is the number of averages selected when in the ACQUIRE Average ...

Страница 159: ...ning Kit 2 113 PRINT SAVE Feature This feature enables you to either print the screen image to a printer or save data to a USB flash drive When LED next to SAVE is unlit pushing the PRINT button prints the image displayed on the screen When LED next to SAVE is lit pushing the PRINT button saves the data to the USB flash drive ...

Страница 160: ... models of the TDS1000B and TDS2000B series of oscilloscopes List the safety precautions to be observed before using an oscilloscope Set up a TDS1000B TDS2000B oscilloscope for general use Identify the features of the Training 1 signal board Compensate a probe Identify the primary controls of a TDS1000B TDS2000B oscilloscope Identify the enhanced features of a TDS1000B TDS2000B oscilloscope ...

Страница 161: ... controls You will also perform procedures to add subtract and multiply waveforms and perform Fast Fourier Transform FFT operations on waveforms by using the MATH MENU button At the end of this module you will be able to Use the VERTICAL Control Knobs to vary the vertical position and vertical scale of the displayed waveform Use the VERTICAL Control MENU Buttons to set the various vertical paramet...

Страница 162: ... knob VOLTS DIV knob You use the VOLTS DIV knob to set and change the vertical voltage scale for the displayed waveform Consider this example If the channel 1 volts div setting on the displayed readout is CH1 5 00V then each vertical division for channel 1 on the graticule represents 5 Volts and the entire graticule of 8 vertical divisions can display 40 Volts peak to peak POSITION knob You use th...

Страница 163: ...DS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 3 3 Figure 3 1 shows the VERTICAL control sections of a 2 channel and a 4 channel oscilloscope respectively Figure 3 1 TDS1012B and TDS2024B VERTICAL control section ...

Страница 164: ... TDS2000B oscilloscope for the VERTICAL controls follow these steps 1 Connect two P2220 probes to the CH1 and CH2 BNC input connectors on the front panel Connect the CH1 and CH2 probe tips to the 5V 1kHz signal on the front panel and connect the CH1 and CH2 ground leads to the ground reference pin directly below the 5V 1kHz pin 2 Push the appropriate side screen menu button to select DEFAULT SETUP...

Страница 165: ...1 2 00V in the top half of the display and CH2 2 00V in the bottom half of the display 5 In the TRIGGER section use the LEVEL knob to set the trigger level readout at the bottom right of the display for CH1 slope symbol 1 60V You will see waveforms similar to those shown in Figure 3 2 Figure 3 2 shows a square waveform for both CH1 and CH2 Figure 3 2 VERTICAL setup ...

Страница 166: ... signal from one device to another For example you implement input coupling when you connect the Training 1 signal board to an oscilloscope You can select AC DC or Ground coupling on the oscilloscope The oscilloscope uses coupling to display components of a waveform in the following ways AC coupling blocks the DC component of a signal and displays only the AC component of the waveform centered aro...

Страница 167: ...ffset AC coupling allows you to view such signals without any special offset controls The following procedure enables you to view how different input coupling settings affect the displayed waveform This procedure assumes that the oscilloscope retains the settings from the previous procedure To switch between AC and DC coupling follow these steps 1 In the VERTICAL section push the CH2 MENU button t...

Страница 168: ...t and right of the display respectively do not shift from their initial positions 4 In the VERTICAL section turn the CH1 VOLTS DIV knob clockwise to set the CH1 vertical scale readout in the bottom left corner of the oscilloscope display to be CH1 50 0mV 5 Turn the CH1 POSITION knob clockwise to set the vertical position at 50 00 divs 2 50V Fine tune the probe calibration for a square waveform Not...

Страница 169: ...ockwise to set the vertical position at 0 00 divs 0 00V Notice that the flatness of the probe compensation waveform changes when you switch from AC coupling to DC coupling This happens because AC coupling is a high pass filter that blocks a component of the signal 8 Turn the CH1 POSITION knob counterclockwise to set the vertical position at 100 00 divs 5 00V Recalibrate the probe for a square wave...

Страница 170: ...100 divisions of position offset as shown in Figure 3 3 This allows you to analyze signal details that would otherwise not be visible Figure 3 3 Vertical display with 100 divisions of offset This procedure is applicable to scenarios where you need to observe the change in amplitude of a square wave inverter or a DC power supply when load is applied ...

Страница 171: ...sitioned on screen for accurate measurements This allows you to view logic signals such as ECL that have their high and low levels biased several volts from ground These signals frequently operate with 0 5 volt of logic swing You can view this amplitude swing while maintaining DC coupled information You can also observe small perturbations riding on top of a signal or any amplitude changes that oc...

Страница 172: ...the VOLTS DIV knob to increase or decrease the vertical resolution of the display This procedure will enable you to adjust and view the displayed waveform in fine detail This procedure assumes that the oscilloscope retains the settings from the previous procedure To modify the vertical scale of a displayed waveform with fine detail follow these steps 1 On the top of the front panel push the AUTOSE...

Страница 173: ...e of a waveform with a fine resolution This is very useful when you need to compare one waveform to another to see how well their shapes match Also you can use this fine scale capability to make a rise time measurement You do this by scaling and positioning the rising pulse edge being measured to be exactly 5 divisions in amplitude Notice that the CH1 scale at the bottom left of the display change...

Страница 174: ...asure the difference in voltage between two points in a circuit by subtracting one waveform from another Also you can use the MATH MENU controls to perform Fast Fourier Transform FFT operations on a waveform Adding Two Waveforms You can use the oscilloscope to add two waveforms For example you may need to analyze whether an adder circuit is working properly or whether the positive and negative vol...

Страница 175: ... or subtracts signals 1 On the top of the front panel push DEFAULT SETUP 2 On the top of the front panel push the AUTOSET button 3 In the VERTICAL section push the MATH MENU button 4 Push the appropriate side screen menu button to select Operation 5 Push the appropriate side screen menu button to select CH1 CH2 6 Turn Multipurpose know clockwise to set the math waveform Vertical Scale to 5 00V ...

Страница 176: ...u will see waveforms similar to those shown in Figure 3 4 The displayed waveform adjacent to the M icon at the left of the display is the sum of the waveforms of CH1 and CH2 The M icon indicates the MATH waveform which appears in red in oscilloscopes with color displays Figure 3 4 Display of CH1 CH2 ...

Страница 177: ...d load regulation effects You can measure the signals at the source and drain of the switching transistor and then subtract these two waveforms to measure the differential signal To obtain the differential of the two waveforms follow these steps 1 Connect the CH1 probe tip to the DIFF signal on pin 12 and the CH1 ground lead to GND on pin 8 of the Training 1 signal board 2 Connect the CH2 probe ti...

Страница 178: ...0mV at the bottom of the display 7 In the HORIZONTAL section turn the SEC DIV knob counterclockwise to set the time base displayed at the bottom of the oscilloscope display as M 250 ms Note that the CH1 and CH2 waveforms are displayed as sine shaped waveforms scanning the screen and overlaying each other 8 In the VERTICAL section push the MATH MENU button 9 Push the appropriate side screen menu bu...

Страница 179: ...igure 3 5 Figure 3 5 Display of CH1 CH2 Note that a slow heart beat signal is differentially buried in the large common mode sine wave signals that are on both Channel 1 and Channel 2 You can remove the channel waveforms from the display by pushing the CH1 MENU and CH2 MENU buttons once or twice This will enable you to see only the MATH waveform ...

Страница 180: ... the power waveform of the voltage and current waveforms follow these steps 1 Connect the CH1 probe tip to the 5 KHz SINE signal on pin 10 and the CH1 ground lead to GND on pin 8 of the Training 1 signal board 2 Connect the CH2 probe tip to the PHASE SHIFTED SINE WAVE signal on pin 11 and the CH2 ground lead to GND on pin 14 of the Training 1 signal board 3 On the Training 1 signal board push the ...

Страница 181: ...In the VERTICAL section push the CH2 MENU button Push the Probe menu option button Next push the Current menu option button 7 On the Training 1 signal board turn the ADJ knob to display the CH1 and CH2 waveforms in phase 8 In the VERTICAL section push the MATH MENU button 9 Push the appropriate side screen menu button to select Operation x 10 Push the appropriate side screen menu button to select ...

Страница 182: ...3 Using VERTICAL Controls 3 22 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit You will see waveforms similar to those shown in Figure 3 6 Figure 3 6 Display of CH1xCH2 ...

Страница 183: ...xample you can use FFT for radio frequency analysis of radio transmitters as well as for vibration analysis of mechanical devices You can also use FFT to analyze the distortion of a sine wave being generated by a circuit FFT is useful for Analyzing spectral purity of a carrier wave signal Performing frequency conversion measurements on signals such as the output of a balanced mixer Measuring the a...

Страница 184: ...ound reference pin directly below the 5V 1kHz pin on the front panel 2 Remove the CH2 probe tip from the Training 1 signal board 3 On the top of the front panel push DEFAULT SETUP 4 On the top of the front panel push the AUTOSET button 5 In the VERTICAL section push the MATH MENU button 6 Push the appropriate side screen menu button to select Operation FFT and Source CH1 7 In the HORIZONTAL sectio...

Страница 185: ...nning of the frequency domain display at four divisions from the left of the display 9 Push the appropriate side screen menu button to select the FFT Zoom X5 option The displayed FFT waveform shows the harmonic content of the calibrator signal Figure 3 7 shows both the odd and even harmonics of the 1 kHz frequency Figure 3 7 FFT display of the calibrator signal ...

Страница 186: ...RTICAL POSITION knob controls to position a waveform on the vertical scale of the display Switch the input coupling type from AC to DC Use AC coupling to view a repeating signal with a large DC offset Use the VERTICAL MENU controls to select special functions such as changing the bandwidth limit of the oscilloscope to view the waveform with less noise interference Use MATH MENU controls to perform...

Страница 187: ...ll learn to use the HORIZONTAL controls by following various procedures that vary the horizontal position and scale of a displayed waveform In this module you will be able to Use the HORIZONTAL Control Knobs to vary the position and horizontal scale of the displayed waveform Use the HORIZONTAL Control MENU Buttons to modify the display in order to aid in the study of a section of a signal s wavefo...

Страница 188: ...ection of this module SEC DIV knob You use the SEC DIV knob to modify the time scale of a displayed waveform Modification of the time scale increases or decreases the horizontal resolution of the displayed waveform POSITION knob You use the HORIZONTAL POSITION knob to align the displayed waveform with the horizontal graduations of the display graticule SET TO ZERO button You use the SET TO ZERO bu...

Страница 189: ...trols Before you use the HORIZONTAL controls in the operation exercises you must ensure that the oscilloscope is set to its default setting It is assumed that the Channel 1 probe tip is connected to the 5V 1kHz signal on the front panel and the probe ground clip is connected to the GND pin on the front panel The Channel 2 probe tip should not be connected to any signal ...

Страница 190: ...it To set up a TDS1000B TDS2000B oscilloscope for the HORIZONTAL controls follow these steps 1 On the top of the front panel push DEFAULT SETUP 2 On the top of the front panel push the AUTOSET button You will see a waveform similar to that shown in Figure 4 2 Figure 4 2 TDS2000B horizontal setup ...

Страница 191: ...ger point in time This interval between the trigger point and the displayed waveform is known as the delay time Setting the delay time for a displayed waveform allows you to see a detailed view of the waveform both before and after the trigger This delay time capability is important when the signal detail of interest is delayed in time from the trigger such as in a disk drive system In this case t...

Страница 192: ...cedure To set the delay time for a displayed waveform follow these steps 1 In the HORIZONTAL section turn the SEC DIV knob counterclockwise to set the time base readout at the bottom of the display to M 5 00ms 2 Turn the HORIZONTAL POSITION knob counterclockwise to set the position readout on the top of the display to M Pos 20 00ms 3 This positions the waveform trigger point 20ms to the left from ...

Страница 193: ...ocedure you used the SEC DIV knob to modify the time base setting of a waveform You also used the HORIZONTAL POSITION knob to change the position of the trigger point from the center of the display The actions performed using the two knobs resulted in a detailed view of the waveform 20 milliseconds after the trigger point This procedure is useful in scenarios where you need to observe waveform det...

Страница 194: ... the Waveform Display In the previous procedure you set the oscilloscope to view a delayed waveform The following procedure enables you to use the Window and Window Zone menu options of the HORIZONTAL menu to further delay and expand a waveform on the display This procedure assumes that the oscilloscope retains the settings specified for the previous procedure To expand the waveform display follow...

Страница 195: ...ONTAL POSITION knob clockwise to position the vertical dotted line cursors around the last positive edge of the displayed waveform 5 Turn the SEC DIV knob clockwise to set the displayed window setting at the bottom of the display to W 10 0us You will see a waveform in the Window Zone display with the position delayed similar to that shown in Figure 4 4 The steps covered so far enable you to visual...

Страница 196: ...layed and Window Zone 6 Push the appropriate side screen menu button to select Window 7 In the HORIZONTAL section turn the POSITION knob to position the rising edge of the displayed waveform to the center of the display 8 Turn the SEC DIV knob clockwise to set the time base setting at the bottom of the display to W 500ns ...

Страница 197: ...hows an expanded waveform using the Window function This procedure will be useful where you need to view magnified portions of a signal A typical application is the analysis of response signals in a robot control system relative to a stimulus signal Figure 4 5 Expanded waveform by using the Window Zone function ...

Страница 198: ...for irregular waveforms such as the waveform from an audio amplifier or a mechanical transducer To study the output of a single shot signal such as the output of an acoustic or mechanical transducer you can use the SINGLE SEQ button to capture a single waveform and then use the HORIZONTAL POSITION and SEC DIV knobs to expand it ...

Страница 199: ...e the SEC DIV knob to modify the horizontal scale of a displayed waveform Use the HORIZONTAL POSITION knob to change the horizontal position of a displayed waveform Delay and expand a displayed waveform by setting the delay time and SEC DIV for it Use the Window and Window Zone menu options of the HORIZONTAL menu to expand a selected portion of a displayed waveform ...

Страница 200: ...4 Using HORIZONTAL Controls 4 14 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit ...

Страница 201: ...ols on the front panel In this module you will learn to use the TRIGGER controls by following various procedures that stabilize repeating signals as well as to capture single shot At the end of this module you will be able to Use the TRIG MENU button to set various trigger parameters such as trigger type slope and coupling Set the trigger holdoff interval ...

Страница 202: ...ring a signal at the correct point is essential to ensure the proper display of a waveform You can use the TRIGGER controls on the front panel to stabilize repeating signals as well as to capture single shot waveforms Figure 5 1 shows the TRIGGER control sections on the front panel Figure 5 1 TRIGGER control sections ...

Страница 203: ...utton to display the trigger menu The trigger menu contains various options such as trigger type trigger source and trigger mode SET TO 50 button You use this button to set the trigger level to the vertical midpoint between the peaks of the triggering signal FORCE TRIG button You use this button to force a signal acquisition to occur in the absence of a trigger signal This manual trigger function ...

Страница 204: ... need to keep this button pressed to view the trigger waveform TRIGGER MENU Controls In this section you will learn how to stabilize a displayed waveform by using the TRIG MENU controls Selecting a Trigger Type The trigger determines when the oscilloscope acquires and saves waveform data You can select Edge Video or Pulse triggering for a signal by using the menu buttons for TRIGGER controls locat...

Страница 205: ...tive part of the video signal This ensures proper line and field triggering over a wide range of vertical amplitude and offset You use Pulse triggering to trigger on a pulse based on its width The following procedure enables you to use edge trigger To trigger on the edge of the input signal follow these steps 1 Connect the CH1 probe tip to 5V 1kHz and the CH1 ground lead to GND on the front panel ...

Страница 206: ...ction turn the SEC DIV knob to set the time base setting on the display for M 2 50us 6 In the TRIGGER section push the TRIG MENU button This step is for you to see that Edge is selected by default 7 Turn the LEVEL knob to set the trigger level to 1 52V at the bottom of the display This action will trigger the oscilloscope when the rising edge of the signal crosses 1 52 V ...

Страница 207: ...g TRIGGER Controls TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 5 7 You will see a display showing the Edge triggering setup similar to that shown in Figure 5 2 Figure 5 2 Edge triggering ...

Страница 208: ...ype for a trigger when you choose Edge triggering You can choose to select DC Noise Reject HF Reject LF Reject or AC coupling for a trigger These selections are needed to help stabilize triggering in the presence of noise and or other interfering signals that are not wanted The following procedure enables you to condition the trigger signal by setting a coupling type ...

Страница 209: ...ng type for a trigger follow these steps 1 In the TRIGGER section push the TRIG MENU button 2 Push the appropriate side screen menu button to select Coupling HF Reject 3 The displayed waveform shifts to the left This is because the triggering signal is slowed down which causes the actual trigger to occur later relative to the displayed signal 4 In the TRIGGER section push and hold the TRIGGER VIEW...

Страница 210: ...it You will see a waveform similar to that shown in Figure 5 3 This trigger signal has a slower rise time and is the result of the low pass HF reject filter This trigger selection rejects the high speed components in the triggering signal Figure 5 3 Triggering waveform with HF Reject coupling ...

Страница 211: ...eak signal required to trigger the signal This mode reduces the triggering sensitivity of the oscilloscope and decreases the chance of false triggering on noise LF Reject is an AC coupled triggering mode that passes only the higher speed signal details above 50 kHz sine wave bandwidth equivalent AC trigger coupling blocks the DC component such as a bias voltage and passes signals with a frequency ...

Страница 212: ... oscilloscope to trigger a displayed signal Consider an example where you have a circuit that uses a clock signal as a reference You can use this clock signal as the external trigger input source and use a probe from an oscilloscope channel to check the referenced signal at various points in the circuit You can then view the behavior of the circuit relative to the trigger reference of the clock si...

Страница 213: ... trigger input or an unused channel to trigger on certain unique aspects of this trigger signal such as pulse width and edge level To use an external or an unused channel input as a trigger follow these steps 1 Connect the CH1 probe tip to the PSEUDO RANDOM signal on pin 5 and the CH1 ground lead to GND on pin 7 of the Training 1 signal board 2 On the top of the front panel push the DEFAULT SETUP ...

Страница 214: ...utton 8 Push the appropriate side screen menu buttons to select Source Ext and Slope Falling 9 Turn LEVEL knob to set the trigger level to 256 mV 10 In the VERTICAL section turn the CH1 VOLTS DIV knob clockwise to set CH1 500mV on the display 11 Turn the CH1 POSITION knob counterclockwise to position the waveform at the center of the display 12 In the HORIZONTAL section turn the SEC DIV knob clock...

Страница 215: ...5 Using TRIGGER Controls TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit 5 15 Figure 5 4 Eye Diagram display of pseudo random signal triggered by external clock signal ...

Страница 216: ...ernal trigger source to observe the timing relationships on the signals connected to the other available channels In a complex microprocessor circuit you may need to simultaneously observe the timing on all waveform channels while using the external trigger input as another source for triggering The EXT TRIG input has a 10X probe connected to it As a result the trigger level is actually 10 times m...

Страница 217: ...mplex data stream The following procedure enables you to detect the presence of a unique pulse in a pseudo random digital signal This procedure assumes that the oscilloscope retains the settings from the previous procedure To use the pulse width triggering feature follow these steps 1 On the top of the front panel push the DEFAULT SETUP button 2 On the Training 1 signal board push the POWER button...

Страница 218: ...copes Operator Training Kit You will see a waveform similar to that shown in Figure 5 5 Figure 5 5 Pseudo random communications signal without holdoff 4 In the TRIGGER section push the TRIG MENU button 5 Push the appropriate side screen menu button to select Type Pulse ...

Страница 219: ...H1 This option may already be selected by default 7 Push the appropriate side screen menu button to select When This option may already be selected by default 8 Push the appropriate side screen menu button to select Set Pulse Width 1 00ms The ADVANCED LED next to the LEVEL button lights up 9 Turn the LEVEL knob counterclockwise to set the pulse width to 297ns ...

Страница 220: ...igure 5 6 Figure 5 6 Unique Pulses with pulse widths of approximately 297 ns This special pulse triggering condition shows the unique pulse in this signal that is very close to 300 ns in width Pulse triggering allows you to trigger on and isolate pulses that are less than equal to greater than or not equal to the pulse width value that you select ...

Страница 221: ...l command signal of remote control has a 0 5 ms presignal pulse followed by a delay of 3 ms and then followed by a 7 ms six bit biphase code word Setting the trigger pulse width to 0 5 ms would reference the trigger point to the pre signal pulse thus ensuring a stable waveform display You can use the HELP menu shown in another section of this manual to learn more about this special Pulse triggerin...

Страница 222: ... circuit capacitance to cause a damped sinusoidal variation on pulses with fast edge transitions This effect from probe tips and ground leads on pulse waveforms is called ringing Probe loading caused by probe tip leads and ground leads can cause incorrect measurements and or circuits to fail In the following step response procedure you use the single shot FAST RISE TIME signal on pin 16 of the Tra...

Страница 223: ...al board 2 On the top of the front panel push the DEFAULT SETUP menu button 3 On the Training 1 signal board push the POWER button until the Digital PWR LED is on 4 In the VERTICAL section turn the CH1 VOLTS DIV knob clockwise for a readout of 200mV 5 In the VERTICAL section turn the CH1 POSITION knob counterclockwise to position the trace two divisions above the bottom of the display 6 In the HOR...

Страница 224: ... the LEVEL knob to set the trigger level to 200mV 8 On the front panel push the SINGLE SEQ button The word Ready will appear at the top of the display 9 On the Training 1 signal board push the PRESS FOR SINGLE SHOT button to generate a high speed single shot signal The words Acq Complete will appear at the top of the display ...

Страница 225: ...r Training Kit 5 25 You will see a waveform similar to that shown in Figure 5 7 Figure 5 7 Step response waveform with a ground lead Overshoot and ringing are caused by the inductance of the probe ground and signal tip leads that interact with the probe and circuit capacitance ...

Страница 226: ...robe tip out of the probe tip lead 2 Insert exposed probe tip into the probe socket on the Training 1 signal board 3 On the front panel push the SINGLE SEQ button The word Ready will appear at the top of the display 4 On the Training 1 signal board push the PRESS FOR SINGLE SHOT button to generate a high speed single shot signal The words Acq Complete will appear at the top of the display ...

Страница 227: ...rm without a ground lead Note that no ringing occurs in the step response when the probe ground and signal tip leads are kept short This procedure points out the importance of keeping probe leads short when analyzing signals with fast rise and or fall times Refer to the user manual to understand the precautions to be observed when using the oscilloscope to observe high voltage signals ...

Страница 228: ...ails of interest or you can trigger on a different signal if it is available You can also use trigger holdoff to stabilize a complex repeating waveform Trigger holdoff is a defined amount of time after a trigger occurs during which an oscilloscope cannot trigger again Trigger holdoff helps to ensure that the oscilloscope displays a predictable trigger reference on a complex repeating waveform Figu...

Страница 229: ...ct the CH1 probe tip to the PSEUDO RANDOM signal on pin 5 and the CH1 ground lead to GND on pin 7 of the Training 1 signal board 2 On the Training 1 signal board push the POWER button until the Digital PWR LED is on 3 On the top of the front panel push the DEFAULT SETUP button 4 On the top of the front panel push the AUTOSET button 5 In the HORIZONTAL section push the HORIZ MENU button 6 Push the ...

Страница 230: ...cations signal by using trigger holdoff Observe that assigning a trigger holdoff time can stabilize the display of a repeating signal You can also modify the horizontal scale of a displayed waveform by adjusting the SEC DIV setting However you cannot do this with an analog oscilloscope because the holdoff circuit includes the time base sweep time ...

Страница 231: ...any places within the waveform You can view a stable waveform display of a complex repeating signal by assigning a trigger holdoff This makes the oscilloscope trigger the signal within the interval of the signal s repeat time Assigning Trigger Holdoff to an AM Signal In the previous procedure you observed that triggering a complex repeating signal at the interval of the signal s repeat time displa...

Страница 232: ...updating overlay of the amplitude modulation region of an amplitude modulated AM signal Figure 5 11 Complex AM signal without holdoff To observe a stable display of the amplitude modulation of a complex repeating signal you must adjust the trigger level within the amplitude modulation region of the displayed waveform ...

Страница 233: ...gger holdoff for an AM signal follow these steps 1 Connect the CH1 probe tip to AM SIGNAL on pin 9 and the CH1 probe ground lead to GND on pin 8 of the Training 1 signal board 2 On the Training 1 signal board push the POWER button until only the Analog PWR LED is on 3 On the top of the front panel push the DEFAULT SETUP button 4 In the VERTICAL section turn the CH1 VOLTS DIV knob to set CH1 to 500...

Страница 234: ...g Kit 6 In the TRIGGER section turn the LEVEL knob to set the displayed trigger level to 1 00V 7 In the HORIZONTAL section push the HORIZ MENU button 8 Push the appropriate side screen menu button to Set Trigger Holdoff Turn the Multipurpose knob to set the displayed holdoff time to 100 0us ...

Страница 235: ...You will see a waveform similar to that shown in Figure 5 12 Figure 5 12 Stable AM signal using trigger holdoff You can view the stable waveform display of the amplitude modulation region of an AM signal by assigning a trigger holdoff time to be within the amplitude modulated region of the signal ...

Страница 236: ...signal to trigger signal acquisitions Trigger on a specified pulse width to isolate a pulse in a complex data stream Trigger on a single shot signal to show single sequence triggering and to show probe lead distortion effects on high speed signals Assign a trigger holdoff for a complex repeating signal such as a pseudo random signal to stabilize the triggered display Assign a trigger holdoff for a...

Страница 237: ...ill be able to Use the ACQUIRE Menu Function Controls to control how the oscilloscope acquires waveform data Use the DISPLAY Menu Function Controls to define how the oscilloscope displays waveforms Use the CURSOR Menu Function Controls to make measurements related to amplitude time and frequency details of a waveform Use the MEASURE Menu Function Controls to make automatic measurements of amplitud...

Страница 238: ...on volatile memory of the oscilloscope or a USB flash drive Use the UTILITY Menu Function Controls to access system related information about the status as well as self calibration control of the oscilloscope Use the REF MENU Menu Function Controls to quickly display and hide reference waveforms stored in the oscilloscope Use the AUTORANGE Menu Function Controls to automatically adjust setup value...

Страница 239: ...ition and processing system You can use the ACQUIRE Menu Function Controls to select the Sample Peak Detect or Average signal acquisition mode DISPLAY button You use the DISPLAY Menu Function Controls to select how waveforms are presented and change the appearance of the displayed waveforms To select these options you need to specify the display type persistence display format and display contrast...

Страница 240: ...recall oscilloscope setups or waveforms to nonvolatile memory locations or to save and recall oscilloscope setups waveform images or waveforms a USB flash drive The oscilloscope can store 10 oscilloscope setups and 2 waveforms 4 waveforms each on the TDS2014 and TDS2024 oscilloscopes to nonvolatile memory UTILITY button You use the UTILITY Menu Function Controls to access various oscilloscope setu...

Страница 241: ...loscopes Operator Training Kit 6 5 REF MENU button You use the REF MENU Function Controls to turn on and off reference waveforms AUTORANGE button You use the AUTORANGE Menu Function Controls to have the oscilloscope automatically adjust setup values to track a signal ...

Страница 242: ...layed from the sample points taken on a signal A TDS1000B TDS2000B oscilloscope acquires 2500 sample points for each active channel during every acquisition of the respective signals Sample points are derived directly from the Analog to Digital Converter for each channel of the oscilloscope The time value difference between two sample points is called the sample interval The ACQUIRE menu is shown ...

Страница 243: ...rvals to construct the waveform You use the Peak Detect acquisition mode to detect glitches and high speed noise in fast moving signals at slow time base settings It is possible to miss fast glitches and noise when the time between displayed samples is very long You use the Average acquisition mode to reduce random noise in a displayed signal You can select the number of waveforms to be averaged b...

Страница 244: ...ws can interfere with the control signal and cause the robot to malfunction You can use the Peak Detect mode to check the control signal for interfering high speed signals that would otherwise be missed because of the time between displayed samples You use the scan mode to display signal updates from left to right on the oscilloscope The scan mode simulates the display of an analog oscilloscope an...

Страница 245: ...o the VARIABLE AMPL WITH GLITCH signal on pin 15 and the CH1 probe ground lead to GND on pin 14 of the Training 1 signal board 2 On the Training 1 signal board push the POWER button until only the Analog PWR LED is on 3 On the top of the front panel push DEFAULT SETUP 4 In the TRIGGER section turn the LEVEL knob to set the trigger level to 400mV on the display 5 Push the TRIGGER MENU button 6 Push...

Страница 246: ...it 7 In the HORIZONTAL section turn the SEC DIV knob counterclockwise to set the displayed time base setting to M 100ms 8 In the MENUS section push the ACQUIRE button The waveform is acquired by the default Sample acquisition mode 9 Push the appropriate side screen menu button to select Peak Detect ...

Страница 247: ...r to that shown in Figure 6 2 Figure 6 2 A noisy variable amplitude signal with glitches acquired with the Peak detect and scan display modes Note that random glitches appear on the waveform These glitches are not visible in the Sample acquisition mode Try selecting the Sample mode and then the Peak Detect mode to view the difference ...

Страница 248: ... of multiple waveforms to display a final waveform You can take an average of 4 16 64 or 128 waveforms to display each waveform In the following procedure you will use the Average acquisition mode to reduce the displayed noise in the repeating signal To use the Average acquisition mode to acquire a waveform follow these steps 1 Connect the CH1 probe to the VARIABLE AMPL WITH GLITCH signal on pin 1...

Страница 249: ...ETUP 4 In the TRIGGER section turn the LEVEL knob to set the trigger level to 400mV on the display 5 Push the TRIG MENU button 6 Push the appropriate side screen menu button to select COUPLING HF Reject You will see a waveform similar to that shown in Figure 6 3 Figure 6 3 A noisy variable amplitude signal acquired with the Sample acquisition mode ...

Страница 250: ...ode You will now use the Average acquisition mode to reduce the displayed noise in the repeating signal 1 On the top of the front panel push the ACQUIRE menu button 2 Push the appropriate side screen menu button to select Average 3 Push the appropriate side screen menu button to change Averages to 128 You will see a waveform similar to that shown in Figure 6 4 ...

Страница 251: ...uisition mode You will observe that the signal noise is reduced when you shift from the Sample to the Average acquisition mode DISPLAY Menu Function Controls You use the DISPLAY Menu Function Controls to control how waveforms are displayed You can use various menu options of the DISPLAY menu such as Type Persist and Format to change the appearance of the oscilloscope display ...

Страница 252: ...are displayed The following procedure enables you to change the appearance of a waveform by changing the display selections for a waveform 1 Connect the CH1 probe tip to the D 10 MHz signal on pin 3 of the Training 1 signal board Connect the CH1 probe ground lead to GND on pin 1 of the Training 1 signal board Make sure that CH1 is the only signal connected to the oscilloscope 2 On the Training 1 s...

Страница 253: ...set the displayed time base to 500ns 6 On the top of the front panel push the RUN STOP button to stop signal acquisitions by the oscilloscope You will see the caption Stop displayed at the top of the oscilloscope display 7 On the top of the front panel push the DISPLAY menu button 8 Push the appropriate side screen menu button to toggle between Type Dots and Type Vectors ...

Страница 254: ...ries Oscilloscopes Operator Training Kit For Type Dots you will see a waveform similar to that shown in Figure 6 5 Notice that this waveform is displayed by dots that represent the sample points and is very difficult to see Figure 6 5 Waveform displayed in dots ...

Страница 255: ...l anomalies that accumulate in the oscilloscope display You can set persistence for 1 2 and 5 seconds or for an infinite period The following procedure enables you to simultaneously view both old and new waveforms by using the Persist Infinite mode This procedure assumes that the oscilloscope retains the settings from the previous procedure To select a persistence period for a displayed waveform f...

Страница 256: ...s Operator Training Kit 2 On the top right of the front panel push the RUN STOP button twice This will start and then stop the accumulation of dots over many waveforms You will see a waveform similar to that shown in Figure 6 6 Figure 6 6 A noisy signal with infinite persistence ...

Страница 257: ...ICAL section turn the CH1 POSITION knob to shift the waveform to the lower part of the display Notice that all except the last waveform acquisition dots disappear from the display You will see a waveform similar to that shown in Figure 6 7 Figure 6 7 A noisy signal with the final waveform acquisition dots displayed ...

Страница 258: ... phase relationship between two or more synchronous signals For example you can measure a Quadrature Amplitude Modulation QAM communication signal with an XY constellation diagram The following procedure enables you to see the phase shift between two synchronous signals by displaying the two signals in the XY format 1 Connect the CH1 probe tip to the 5 KHz SINE signal on pin 10 and the CH1 ground ...

Страница 259: ...5 On the top of the front panel push the AUTOSET button 6 In the VERTICAL section use the CH1 and CH2 POSITION knobs to overlay both waveforms at the vertical center of the display 7 On the top of the front panel push the DISPLAY button 8 Push the appropriate side screen menu button to select Format XY 9 Turn the CH1 VOLTS DIV knob to set the Channel 1 volts div setting to 200mV and turn the CH2 V...

Страница 260: ...signal as a circle The circle means that both of the signals are sine waves and are 90º out of phase with respect to each other You will see a waveform similar to that shown in Figure 6 8 Figure 6 8 XY Display of two sine waves with 90º phase shift You can use the XY display format to set or measure the phase shift between two synchronous signals with a phase difference ...

Страница 261: ...cursors to view the values of the cursor positions The horizontal and vertical cursors are visible as dotted lines on the screen You control the cursors by selecting Cursor 1 or Cursor 2 and adjusting their position with the Multipurpose knob Measuring the Vertical Scale The following procedure enables you to manually measure the vertical scale of a waveform and calculate the volts amplitude of th...

Страница 262: ...f the front panel push the DEFAULT SETUP menu button 3 On the top of the front panel push the AUTOSET button 4 On the top of the front panel push the CURSOR menu button 5 Push the appropriate side screen menu button to select Type Amplitude Notice that the Multipurpose front panel LED is now turned on 6 Ensure that Source CH1 is selected 7 Ensure that Cursor 1 is selected Turn the Multipurpose kno...

Страница 263: ...ed cursor on the highest peak of the waveform 9 Read the peak to peak volts amplitude measurement for the waveform in the side screen menu box ΔV You will see a waveform similar to that shown in Figure 6 9 The measurement displayed in ΔV is the peak to peak volts amplitude measurement for the 5 kHz SINE signal Figure 6 9 Volts amplitude measurement for a 5 kHz sine wave ...

Страница 264: ...waveform follow these steps 1 Push the appropriate side screen menu button to select Type Time 2 In the HORIZONTAL section turn the SEC DIV knob clockwise to set the readout at the bottom of the screen to M 25 0us 3 Ensure that Cursor 1 is selected Turn the Multipurpose knob to position the associated cursor on the left of the waveform cycle where the sine wave crosses negatively through the cente...

Страница 265: ...r to that shown in Figure 6 10 The measurements displayed in Δt are the period frequency and delta amplitude measurements for the 5 kHz SINE signal from pin 10 on the Training 1 signal board The actual reading may vary from the stated 5 kHz frequency However this Delta reading for frequency should be very close to the trigger frequency reading at the bottom of the display Figure 6 10 Period and fr...

Страница 266: ... the CURSOR menu You may need to measure pulse width to ensure that variations in pulses do not cause a digital circuit to malfunction To measure the width of a pulse with cursors follow these steps 1 Connect the CH1 probe tip to the D 10 MHz signal from pin 3 and the CH1 ground lead to GND on pin 1 of the Training 1 signal board Make sure that CH2 is not connected to any signal 2 On the Training ...

Страница 267: ...CURSOR menu button 7 Push the appropriate side screen menu button to select Type Time 8 Ensure that Cursor 1 is selected Turn the Multipurpose knob to position the associated cursor at the 50 point on the rising edge of the pulse at the center of the display 9 Select Cursor 2 Turn the Multipurpose knob to position the associated cursor at the 50 point on the falling edge of the pulse after the cen...

Страница 268: ...ries Oscilloscopes Operator Training Kit You will see a waveform similar to that shown in Figure 6 11 The measurement displayed in Δt is the pulse width for the D 10 MHz signal from pin 3 Figure 6 11 Pulse width measurements of a 10 MHz data signal using cursors ...

Страница 269: ... manually measure the rise time of a pulse between 10 and 90 of the pulse amplitude by using time cursors This procedure assumes that the oscilloscope retains the settings from the previous procedure To measure the rise time of a pulse follow these steps 1 In the VERTICAL section turn the CH1 VOLTS DIV knob clockwise to set CH1 to 1 00V 2 Turn the CH1 POSITION knob to position the waveform at the ...

Страница 270: ... turn the CH1 VOLTS DIV knob to set the waveform peak to peak amplitude to five vertical divisions of the graticule 7 Turn the CH1 POSITION knob to position the waveform at the center of the display such that the top of the waveform is 2 5 divisions above the center graticule 8 On the top of the front panel push the CURSOR menu button 9 Push the appropriate side screen menu button to select Type T...

Страница 271: ...t where the waveform crosses the second graticule below the center of the screen This is the 10 point on the waveform 11 Select Cursor 2 Turn the Multipurpose knob to position the associated cursor at the point where the waveform crosses the second graticule above the center of the screen This is the 90 point on the waveform 12 Read the rise time measurement for the pulse in the side screen menu b...

Страница 272: ...scilloscopes Operator Training Kit You will see a display similar to that shown in Figure 6 12 The measurement displayed in Δt is the rise time for the D 10 MHz signal from pin 3 on the Training 1 signal board Figure 6 12 Rise time measurement of a 10 MHz data signal ...

Страница 273: ...ements you can take a maximum of 5 measurements at a time You can take each measurement on any input channel that is currently selected Taking Automatic Measurements To automatically measure the frequency period mean peak to peak and Cycle RMS of a waveform follow these steps 1 Connect the CH1 probe tip to the CLK 20 MHz signal on pin 2 and the CH1 probe ground lead to GND on pin 1 of the Training...

Страница 274: ...RE menu button 6 Push the appropriate side screen menu buttons to select CH1 None 7 Push the appropriate side screen menu button to select Type Freq The frequency of the signal is displayed 8 Push the appropriate side screen menu button to select Back This step takes you back to the previous screen Notice that the frequency of the signal is displayed and the rest of the menus display CH1 None ...

Страница 275: ...propriate side screen menu button to select Type Period 11 Push the appropriate side screen menu button to select Back 12 Push the next side screen menu buttons to select CH1 None 13 Push the appropriate side screen menu button to select Type Mean 14 Push the appropriate side screen menu button to select Back 15 Push the appropriate side screen menu button to select CH1 None ...

Страница 276: ...appropriate side screen menu button to select Type Pk Pk 17 Push the appropriate side screen menu button to select Back 18 Push the final side screen menu button to select CH1 None 19 Push the appropriate side screen menu button to select Type Cyc RMS 20 Push the appropriate side screen menu button to select Back ...

Страница 277: ...matic measurements The frequency period mean peak to peak and cycle RMS measurements for the CH1 input signal are shown in the side screen menu The oscilloscope sweeps the signal horizontally and the measurements are updated automatically This procedure will be useful in situations where you need to monitor up to five different measurement parameters out of eleven possible parameters on up to four...

Страница 278: ...S2000B Series Oscilloscopes Operator Training Kit Figure 6 13b shows the Positive Width being monitored on all four digital signals The fifth measurement is the Negative Width of the fourth signal Figure 6 13b Multiple Signals with the Same Measurements ...

Страница 279: ... input channel MATH or reference memory location and save this wave to one of 2 nonvolatile memory locations 4 on four channel models or to a USB flash drive Saving and Recalling a Setup The following procedure enables you to save custom settings in a TDS1000B TDS2000B oscilloscope by storing an instrument setup To save an instrument setup follow these steps 1 Connect the CH1 probe tip to the 5 kH...

Страница 280: ...t panel push the AUTOSET button 5 In the VERTICAL section push the CH1 MENU button 6 Push the appropriate side screen menu button to select Volts Div Fine 7 In the VERTICAL section turn the CH1 VOLTS DIV knob counterclockwise to set CH1 for 256mV on the display 8 On the top of the front panel push the CURSOR menu button 9 Push the appropriate side screen menu button to select Type Amplitude ...

Страница 281: ...select Window Zone 12 On the top of the front panel push the SAVE RECALL menu button 13 Push the appropriate side screen menu button to select Action Save Setup 14 Push the appropriate side screen menu button to select Save Setup to Setup 15 Push the appropriate side screen menu button to select Setup 1 16 Push the appropriate side screen menu button to select Save Your instrument setup is saved a...

Страница 282: ...6 Using Menu Function Controls 6 46 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit You will see a display similar to that shown in Figure 6 14 Figure 6 14 Saving an instrument setup ...

Страница 283: ...top of the front panel push the SAVE RECALL menu button 3 Push the appropriate side screen menu button to select Action Recall Setup 4 Push the appropriate side screen menu button to select Recall From Setup 5 Push the appropriate side screen menu button to select Setup 1 6 Push the appropriate side screen menu button to select Recall You should again see a display as shown in Figure 6 14 In this ...

Страница 284: ...rm This procedure assumes that the oscilloscope retains the settings from the previous procedure To save and recall a waveform follow these steps 1 On the top of the front panel push the DEFAULT SETUP menu button 2 On the top of the front panel push the AUTOSET button 3 In the MENUS section push the SAVE RECALL button 4 Push the appropriate side screen menu button to select Action Save Waveform ...

Страница 285: ...H1 7 Push the appropriate side screen menu button to select To RefA 8 Push the appropriate side screen menu button to select Save This saves the displayed CH1 waveform into reference location A 9 In the VERTICAL section turn the CH1 POSITION knob to position the displayed waveform one division above its current position 10 In the MENUS section push the REF MENU button 11 Push the appropriate side ...

Страница 286: ... and TDS2000B Series Oscilloscopes Operator Training Kit You will see a display similar to that shown in Figure 6 15 Notice that both the saved Ref A and the updating CH1 waveforms are displayed Figure 6 15 Saved and updating waveforms displayed ...

Страница 287: ...fferent control sections of the oscilloscope changing the display language setting up the instrument GPIB address and checking the oscilloscope error log Displaying the System Status In the following procedure you check the status of the VERTICAL controls This procedure assumes that the oscilloscope retains the settings from the previous procedure To check the status of the VERTICAL controls follo...

Страница 288: ...opriate side screen menu button to select Vertical CH1 CH2 For the TDS2014 and TDS2024 oscilloscopes you will select either Vertical CH1 CH2 or Vertical CH3 CH4 You will see a display similar to that shown in Figure 6 16 Vertical System Status is displayed Figure 6 16 TDS1000B TDS2000B Vertical System Status display ...

Страница 289: ...low these steps 1 On the top of the front panel push the UTILITY menu button 2 Push the appropriate side screen menu button to select the required language All side screen menu options are displayed in the selected language REF MENU Function Controls You use the REF MENU Function Controls to turn on and off reference waveforms Turning On Off a Reference Waveform In the following procedure you will...

Страница 290: ...waveform A follow these steps 1 On the top of the front panel push the REF MENU button 2 Push the appropriate side screen menu button to turn off Ref A 3 Push the appropriate side screen menu to turn on Ref A You will see a display similar to that shown in Figure 6 17 Figure 6 17 Reference waveform and updating waveform displayed ...

Страница 291: ...atically adjust settings as you move probe from one point to another To watch the AUTORANGE function in action follow these steps 1 Connect the CH1 probe tip to the CLK 20 MHz signal on pin 2 and CH1 ground lead to GND on pin 1of the Training 1 signal board Make sure no other channel is connected to a signal 2 On the Training 1 signal board push the POWER button until the Digital PWR LED is on 3 O...

Страница 292: ...cilloscopes Operator Training Kit 6 Ensure the Vertical and Horizontal option is selected 7 Move the CH1 probe tip to D 10 MHz signal on pin 3 of the Training 1 signal board Notice that the oscilloscope automatically changed the timebase setting from 25 0 ns to 50 0 ns ...

Страница 293: ... how the oscilloscope acquires waveform data Use the DISPLAY Menu Function Controls to define how the oscilloscope displays waveforms Use the CURSOR Menu Function Controls to make measurements related to amplitude time or frequency details of a waveform Use the MEASURE Menu Function Controls to make automatic measurements of amplitude time and frequency parameters for displayed waveforms ...

Страница 294: ...ols to access system related information about the status as well as self calibration control of the oscilloscope Use the REF MENU Menu Function Controls to turn on and off reference waveforms Use the AUTORANGE Menu Functions Controls to automatically track and adjust oscilloscope settings as you move probe from point to point You have now completed all chapters of the TDS1000B and TDS2000B Series...

Страница 295: ... is the regulatory compliance information for the Training 1 signal board European Union EC Council EMC Directive 89 336 EEC amended by 93 68 EEC Demonstrated using IEC 61326 1997 Product Family Standard for Electrical Equipment for Measurement Control and Laboratory Use EMC Requirements IEC 61000 3 2 AC Power line Harmonic Emissions ...

Страница 296: ... and TDS2000B Series Oscilloscopes Operator Training Kit Australia and New Zealand EMC Framework demonstrated per Emission Standard AS NZS 2064 Industrial Scientific and Medical Equipment USA Complies with the requirements of FCC CFR Title 47 Part 15 Subpart B Class A ...

Страница 297: ...A Training 1 Signal Board Signal Definitions TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit A 3 Figure A1 1 depicts the layout of the Training 1 signal board Figure A1 1 Training 1 signal board ...

Страница 298: ...pins provide the ground reference for the Training 1 signal board Pin 2 CLK 20MHz Specification 20 MHz digital signal 4 V peak to peak Description This signal is the control clock for all of the digital signals on the Training 1 signal board Pin 3 D 10MHz Specification 10 MHz digital signal 4 V peak to peak Description This signal is a 10 MHz digital data signal ...

Страница 299: ...ur groups of eight 16 to 24 ns pulses separated by 1 3 ms of inactivity Verification of this signal requires two measurements at two different time scales Pin 5 PSEUDO RANDOM Specification 20 MHz digital clock signal 3 V peak to peak Description This NRZ OC1 pseudo random signal can be used to show how to trigger on a complex yet repeating signal sequence such as a communication signal or computer...

Страница 300: ... 3 V peak to peak Description This signal is a 10 MHz square wave that contains an occasional glitch caused by a metastable state in the flip flop A logic analyzer or an advanced oscilloscope set to trigger on narrow pulse widths will find these glitches Pin 9 AM SIGNAL Specification Analog signal Frequency 5 kHz sine wave with 1 MHz carrier Amplitude 3 V peak to peak ...

Страница 301: ...cy The output should look like a sine wave with a positive DC component and an inverted sine wave with a negative DC component with shading between This signal can be used to show the varying characteristics of one signal being amplitude modulated onto another signal such as in radio frequency applications These characteristics can be shown on a TDS1000B or a TDS2000B oscilloscope by using trigger...

Страница 302: ...About 5 kHz Amplitude 1 V Description The phase difference between these two 5 kHz sine waves is varied using a potentiometer The maximum phase shift between the two sine waves is determined by turning the potentiometer to both extremes This set of signals can be used to demonstrate the phase relationship of two time related signals such as voltage and current in a power supply by using the X Y di...

Страница 303: ...Amplitude 2 V common with 250 mV differential Description The differential signal from pin 12 and pin 13 is a 1 Hz heartbeat signal with a 250 mV amplitude It is combined with a 2 V common mode 7 Hz sine wave This signal can be used to demonstrate how to separate differential signals from common mode signals Subtracting one channel from another on a TDS1000B or a TDS2000B oscilloscope can reject c...

Страница 304: ...V amplitude at 1 Hz rate Description This signal is a 10 Hz square wave with an amplitude that follows a 0 1 Hz sine wave In addition a 5 V DC 20 ns pulse combines with the signal at an asynchronous 1 Hz rate The glitch is visible on an oscilloscope if the sweep speed is increased and set to trigger on a narrow pulse This signal can be used to demonstrate how to capture and analyze infrequent high...

Страница 305: ...2 ns The signal is generated each time the PRESS FOR SINGLE SHOT button is pressed on the Training 1 signal board This signal can be used to demonstrate the unwanted effects of the ground lead when probing high speed circuits 2x8 Pin Connector D_10MHz Duplicate of the 10 MHz data signal from pin 3 Q_META Duplicate of the METASTABLE signal from pin 6 PSEUDO Duplicate of the PSEUDO RANDOM signal fro...

Страница 306: ...Appendix A Training 1 Signal Board Signal Definitions A 12 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit ...

Страница 307: ... of a signal but passes the dynamic AC component of the signal Useful for observing an AC signal that is normally riding on a DC signal Acquisition The process of sampling signals from input channels digitizing the samples processing the results into data points and assembling the data points into a waveform record The waveform record is stored in memory ...

Страница 308: ...ency components that are above the Nyquist frequency appear as lower frequency components on the oscilloscope screen Attenuation The degree the amplitude of a signal is reduced when it passes through an attenuating device such as a probe or attenuator the ratio of the input measure to the output measure Auto Trigger Mode A trigger mode that causes the oscilloscope to automatically acquire if it do...

Страница 309: ...k the signal Autoset A feature that automatically sets the vertical horizontal and trigger controls to provide a usable display Average Acquisition Mode A mode in which the oscilloscope acquires and displays a waveform that is the averaged result of several acquisitions The oscilloscope acquires data as in the sample mode and then averages it according to a specified number of averages Averaging r...

Страница 310: ...n volts time or frequency of the position of the active cursor and the distance between the two cursors Cycle RMS The Root Mean Square RMS value of the first complete cycle in the waveform record DC Coupling A mode that passes both AC and DC signal components to the circuit Available for both the trigger system and the vertical system DEFAULT SETUP A group of values that the controls are set at wh...

Страница 311: ...r Triggering that occurs when the oscilloscope detects the external input signal passing through a specified voltage level in a specified direction the trigger slope FFT Fast Fourier Transform is a mathematical procedure to convert a time domain signal into its frequency components GPIB adapter An adapter that enables GPIB control of the oscilloscope through the USB device port Ground GND Coupling...

Страница 312: ...tage parameters of a waveform The oscilloscope displays the value of the active moveable cursor with respect to ground and the voltage value between the bars Normal Trigger Mode A mode where the oscilloscope does not acquire a waveform record unless a valid trigger event occurs It waits for a valid trigger event before acquiring waveform data Peak Detect Mode An acquisition mode that captures spik...

Страница 313: ... printing It allows images to be printed directly from the oscilloscope to a printer without having to connect the oscilloscope to a computer Sample Acquisition Mode A mode in which the oscilloscope creates a record point by saving the first sample during each acquisition interval This is the default mode of the acquisition system Sample Interval The time interval between successive samples in a w...

Страница 314: ...connect a USB flash drive for data storage or retrieval USB Device Port The USB port used to connect to a PictBridge compatible printer computer controller or terminal USBTMC USB Test and Measurement Class and allows GPIB style communication over USB using USBTMC compliant VISA layers Vertical Cursors The two vertical bars you position to measure the time parameter of a waveform record The oscillo...

Страница 315: ...te video signal XY Format A display format that compares the voltage level of two waveform records point by point It is useful for studying phase relationships between two waveforms YT Format The conventional oscilloscope display format It shows the voltage of a waveform record on the vertical axis as it varies over time on the horizontal axis ...

Страница 316: ...Appendix B Glossary B 10 TDS1000B and TDS2000B Series Oscilloscopes Operator Training Kit ...

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