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Tektronix IsoVu TIVM Series, Руководство пользователя

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Tektronix IsoVu TIVM Series Скачать руководство пользователя страница 65

User service

Propagation delay

This procedure veri

fi

es that the TIVM Series IsoVu measurement system is

functioning and meets the warranted propagation delay speci

fi

cation. The

propagation delay will be measured by

fi

rst applying the output of the pulse

generator to the input of the oscilloscope and storing the captured waveform
as a reference waveform. Next, the measurement system is connected to the
oscilloscope and the output of the pulse generator is connected to the input of the
measurement system. The delay is then measured between the saved reference
waveform and the acquired waveform of the measurement system.

NOTE.

This procedure is valid for all versions of the TIVM Series IsoVu

measurement systems.

Create the reference

waveform

Complete the following steps to create the reference waveform:

1.

Connect the Tek-DPG Deskew Pulse Generator output BNC cable directly to
Channel 1 input of the TekVPI oscilloscope.

2.

Enable Channel 2 and use the following setups:

Vertical Scale:

500 mV/div

.

Vertical Position: -3 divisions

Set Termination:

1 M

Ω

,

Coupling:

DC

Bandwidth:

FULL

Deskew:

0

seconds

3.

Set the Trigger menu using the following setups:

Type:

Edge

Source:

CH2

Slope:

Negative

Level:

+1.50 V

Coupling:

DC

4.

Use the following setups for Channel 1.

Vertical Scale:

200 mV/div

Coupling:

DC

Termination:

50

Ω

Bandwidth:

FULL

TIVM Series Measurement System User Manual

47

Содержание IsoVu TIVM Series

Страница 1: ...xx TIVM Series IsoVu Measurement System ZZZ User Manual P071349500 071 3495 00...

Страница 2: ......

Страница 3: ...TIVM Series IsoVu Measurement System ZZZ User Manual xx Register now Click the following link to protect your product www tek com register www tek com 071 3495 00...

Страница 4: ...ion supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc ISOVU is a trademark of Tektro...

Страница 5: ...taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and...

Страница 6: ......

Страница 7: ...tion 12 AutoZero 14 Menu button 14 Offset correction 15 1X 2X Range 17 Auto Range 18 Selecting a sensor tip cable 19 Output clamping 20 Sensor tip loading 20 Probe compensation 21 Deskew 21 Input offs...

Страница 8: ...55 CH n PRObe COMMAND CLAMP ON OFF 55 CH n PRObe SET CLAMP ON CLAMP OFF 55 CH n PRObe FORCEDRange NR3 56 CH n PRObe GAIN 56 CH n PRObe ID SERnumber TYPe 56 CH n PRObe PROPDELay 57 CH n PRObe RECDESke...

Страница 9: ...rent shunt 25 Figure 18 SMT resistor model 26 Figure 19 ESD discharge test example 27 Figure 20 Sensor head dimensions with probe tip cover 33 Figure 21 Sensor head dimensions without probe tip cover...

Страница 10: ...ttons 7 Table 6 Sensor tip selection table 19 Table 7 Input offset 21 Table 8 Warranted specifications 29 Table 9 Electrical specifications 29 Table 10 Physical specifications 33 Table 11 Required equ...

Страница 11: ...be sure it is operating correctly This product is not intended for detection of hazardous voltages Use personal protective equipment to prevent shock and arc blast injury where hazardous live conduct...

Страница 12: ...tions Be aware that condensation may occur if a unit is moved from a cold to a warm environment Do not operate in an explosive atmosphere Keep product surfaces clean and dry Remove the input signals b...

Страница 13: ...ary before performing any service procedures To avoid electric shock Do not touch exposed connections Do not service alone Do not perform internal service or adjustments of this product unless another...

Страница 14: ...direct conduction path to earth ground Symbols and terms on the product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING...

Страница 15: ...oVu technology galvanically isolated floating measurement system Bandwidth from DC to 1 GHz 120 dB 1 million to 1 common mode rejection ratio from DC to 100 MHz and 80 dB 10 000 to 1 at 1 GHz Differen...

Страница 16: ...cope by optical fiber cables Figure i TIVM Series IsoVu Measurement System Comp box The TekVPI compensation box Comp box connects the measurement system to one of the input channels on the oscilloscop...

Страница 17: ...TIVM1 Tektronix IsoVu 1 GHz Medium Voltage with 3 m cable TIVM1L Tektronix IsoVu 1 GHz Medium Voltage with 10 m cable TIVM05 Tektronix IsoVu 500 MHz Medium Voltage with 3 m cable TIVM05L Tektronix Is...

Страница 18: ...Preface xii TIVM Series Measurement System User Manual...

Страница 19: ...cable IVTIP5X 25X Sensor tip cable IVTIP25X 5 16 inch SMA wrench driver tool 003 1947 xx Probe tip adapter blue MMCX to 0 1 inch 2 54 mm square pin 0 025 inch 0 635 mm square pins 131 9717 xx Probe t...

Страница 20: ...ic cables and sensor tip cables Do not crush crimp or sharply bend the fiber optic cable Avoid making loops in the fiber optic cable smaller than 5 inches 12 7 cm Do not twist the fiber optic cable tw...

Страница 21: ...C 32 F to 104 F Non operating 40 C to 70 C 40 F to 158 F Sensor head Operating 0 C to 70 C 32 F to 158 F Non operating 40 C to 70 C 40 F to 158 F Sensor tip cables adapters Operating and non operating...

Страница 22: ...00 m 39370 ft Clearance requirements The unique common mode voltage range of the measurement system allows it to be used in the presence of high frequency high voltage common mode signals It is import...

Страница 23: ...de signals within the light gray area can result in RF burns while directly contacting the sensor head Measuring common mode signals within the dark gray shaded area can result in RF burns when within...

Страница 24: ...ollowing figure shows the components of the measurement system and the potential RF burn area when working with hazardous voltages Figure 2 RF burn hazard zone around the sensor head 6 TIVM Series Mea...

Страница 25: ...Indicator This red LED indicates if the DC low frequency differential voltage applied to the sensor head or attached sensor tip cable has exceeded the maximum specified input voltage levels RANGE ind...

Страница 26: ...this button to start the self calibration routine 6 STATUS indicator This LED indicates the status of the measurement system Solid green The unit has powered on and passed the power on self tests and...

Страница 27: ...sensor head Sensor tip cables Each sensor tip cable has a set of labels on the top and bottom The top labels provide reminders of the maximum differential input voltage range for each tip cable The bo...

Страница 28: ...ad or sensor tip cable while taking measurements Always keep a six 6 inch 15 25 cm clearance from the sensor head during the measurement See Figure 2 on page 6 Be sure to check the maximum ratings and...

Страница 29: ...ne up the sensor tip cable with the sensor head Take care to avoid bending or twisting the sensor tip cable assembly during this process b Connect the SMA connector of the sensor tip cable to the sens...

Страница 30: ...r 20 minutes Then perform the self calibration before connecting the tip cable to the DUT and taking the measurement 5 Connect the MMCX end of the sensor tip cable to an MMCX connector on the DUT or t...

Страница 31: ...t system is first attached to the oscilloscope Changes are made to the range 1X 2X or clamp ON OFF setting The temperature in the sensor head changes more than 10 C The internal compensation adjustmen...

Страница 32: ...has completed Make sure there is no differential signal present at the sensor tip cable Menu button Press the MENU button on the controller to view the Probe Setup menu on the oscilloscope similar to...

Страница 33: ...peration of the filter is transparent However at low frequencies special care must be taken to prevent aberrations from being introduced When attempting to capture a signal that has a frequency near 4...

Страница 34: ...1 Hz 800 mVp p square wave These aberrations are also created by the digital filter Figure 11 Digital filter aberrations about 2 5 of Vp p The following figure shows the aberrations after the offset...

Страница 35: ...ng offset correction 1X 2X Range The top label of each sensor tip cable IVTIP1X IVTIP5X IVTIP10X IVTIP25X IVTIP50X shows the dynamic range in peak to peak volts as shown in the following figure Figure...

Страница 36: ...ratings The Maximum Non Destruct Voltage limits RMS and Peak Voltage do not increase when the 2X Range is selected For the IVTIP5X the 12 Vrms and 21 5 Vpk limits are the same for the 1X or 2X Range...

Страница 37: ...le under a fault condition What is the minimum differential loading input resistance that my circuit can tolerate How large of a signal do I want to display at one time on the oscilloscope What sensit...

Страница 38: ...wing figure Figure 14 Bottom sensor tip labels It is important to understand the impact of the tip loading on the DUT For example the IVTIP5X tip has a differential input resistance of 250 If you choo...

Страница 39: ...scope for specific directions needed to deskew the probe The 3 m and 10 m measurement systems have a propagation delay of approximately 35 ns and 68 ns respectively The actual propagation delay is mea...

Страница 40: ...Operating information 22 TIVM Series Measurement System User Manual...

Страница 41: ...s type of circuit the gate source voltage is of interest because the rate at which the device switches is determined by the gate drive characteristics The reference node for this measurement is the hi...

Страница 42: ...acts provide a well shielded signal path The IsoVu input provides a floating differential measurement with differential input resistance from 50 to 2 5 k depending on the tip attenuation In the VGS me...

Страница 43: ...e measurement of the high side VGS during the transition is not possible Example 2 High side drain current measurement Current sensing is a critical measurement in many applications Using the half bri...

Страница 44: ...n be used when high power dissipation is required For example the RP0402CB R500FN 2Q from Barry Industries http www barryind com is a 1 0 W 0 5 0402 resistor on an AIN substrate or the RP0402CB R500FN...

Страница 45: ...als on the bus and to inspect them during the discharge Because the measurement system uses Galvanic isolation it rejects any interference from the ESD transient and tolerates the high common mode vol...

Страница 46: ...Application examples 28 TIVM Series Measurement System User Manual...

Страница 47: ...for the Propagation delay are listed later in this document See page 47 Propagation delay Table 8 Warranted specifications Characteristic Description Propagation delay Warranted 3 m fiber length 35 ns...

Страница 48: ...ent system be aware of the input voltage limits this specification applies to both the 1X Range and 2X Range IVTIP50X 50X Sensor tip cable 35 V 200 Vpk Clamping Off 1X Range Clamping Off 2X Range Sens...

Страница 49: ...IVTIP1X 1X Sensor tip cable 2 mV 4 mV IVTIP5X 5X Sensor tip cable 10 mV 20 mV IVTIP10X 10X Sensor tip cable 20 mV 40 mV IVTIP25X 25X Sensor tip cable 50 mV 100 mV DC offset error voltage 2 Input refe...

Страница 50: ...000 V CAT II Common mode resistance Typical N A due to Galvanically isolation fiber optic connection Common mode capacitance 3 Typical 2 pF Sensor tip cable adapter Overload indicator On Sensor head i...

Страница 51: ...gth TIVM1 TIVM02 TIVM05 3 m 9 84 ft TIVM1L TIVM02L TIVM05L 10 m 32 81 ft TekVPI cable length 55 88 cm 22 in Overall length and tolerances Comp box to controller 0 5588 m 3 81 cm 22 in 1 5 in shoulder...

Страница 52: ...Reference information Figure 21 Sensor head dimensions without probe tip cover Figure 22 Controller dimensions 34 TIVM Series Measurement System User Manual...

Страница 53: ...Reference information Figure 23 Comp box dimensions Figure 24 Probe tip adapter dimensions TIVM Series Measurement System User Manual 35...

Страница 54: ...citance will be approximately 2 pF when the sensor head is placed six 6 inches 15 25 cm above a ground plane To minimize the effects of common mode capacitive loading consider the following items When...

Страница 55: ...down or right side up as shown in the following figures Figure 26 Installing the flexible tripod under the DUT Figure 27 Connecting the sensor head to the top of the DUT with the flexible tripod Probe...

Страница 56: ...Reference information Figure 28 Connecting to an adapter on the circuit board with the probe tip tripod 38 TIVM Series Measurement System User Manual...

Страница 57: ...cedure for installing these adapters are the same the main difference is the spacing of the pins on the circuit board To install the adapters onto the square pins line up the center of the adapter wit...

Страница 58: ...2 inch 1 57 mm adapter on the circuit board After lining up the adapters gently push down on the adapter to seat it in place on the circuit board Figure 31 Pushing the MMCX to 0 062 inch 1 57 mm adapt...

Страница 59: ...place When the adapters are firmly in place on the circuit board connect the sensor tip cable to the top of the adapter while using the probe tip tripod to ease the tension off the probe tip cable and...

Страница 60: ...The following figure shows the recommended clearance requirements for connecting the adapters to the square pins on the circuit board The bottoms of the adapters are shown at the top Figure 33 Adapter...

Страница 61: ...062 inch 1 57 mm adapter Use the soldering aide tool accessory Tektronix part number 003 1946 xx to install these pins on the circuit board NOTE The solder pins are extremely small and can be challen...

Страница 62: ...dering aide to install the square pins on the circuit board 2 Use the soldering aide to hold the square pins in place while soldering the square pins to the circuit board 3 If necessary apply a small...

Страница 63: ...provide warranty service at most Tektronix service locations worldwide The Tektronix Web site provides information on all service locations worldwide Calibration and repair service In addition to warr...

Страница 64: ...ce verification procedures are shown in the following table Table 11 Required equipment for performance verification Description Minimum requirements Example product Oscilloscope with TekVPI interface...

Страница 65: ...acquired waveform of the measurement system NOTE This procedure is valid for all versions of the TIVM Series IsoVu measurement systems Create the reference waveform Complete the following steps to cre...

Страница 66: ...Save to save the Channel 1 waveform as reference waveform R1 The new reference waveform should now be displayed on the oscilloscope 9 Disable the output of the Tek DPG 10 Disconnect the Tek DPG Deske...

Страница 67: ...annel 1 waveform should appear on the oscilloscope display and be approximately vertically centered on the display If not ONLY adjust the vertical settings as necessary to center the waveform on the d...

Страница 68: ...h the comp box using a different oscilloscope channel if necessary If the condition persists return the system to Tektronix for service Controller STATUS indicator is flashing green Detach and then re...

Страница 69: ...his document See page 19 Change the Input Offset to center the signal on screen Make sure the correct Range is selected 1X or 2X Frequency response is rolled off Check the bandwidth limit on the oscil...

Страница 70: ...head Large DC offset in waveform Run SELF CAL Run AutoZero Set Input Offset to 0 0 V Cannot select between 1X and 2X range 5000 7000 70000 Series oscillocopes When Auto Range is turned ON the Range is...

Страница 71: ...ture Certificate number RH Technician Date of calibration Propagation delay Minimum Incoming Outgoing Maximum TIVM1 3 m fiber length 30 ns 40 ns TIVM1L 10 m fiber length 61 ns 75 ns TIVM02 3 m fiber l...

Страница 72: ...User service 54 TIVM Series Measurement System User Manual...

Страница 73: ...an be configured with special keystrokes to perform a full self calibration before the oscilloscope does its AutoZero Refer to the self calibration procedure for information on performing the self cal...

Страница 74: ...ensor tip in Vp p CH n PRObe GAIN Returns the gain factor of the sensor tip inverse of attenuation Dependent on the attached sensor tip cable Query only CH n PRObe ID SERnumber TYPe Query only When se...

Страница 75: ...r tip always V Query only CH n PROBECOntrol AUTO MAN Only supported by 5000 7000 70000 Series oscilloscopes The command sets the Auto or Manual sensor tip range control CH n PROBE PROBECOntrol The que...

Страница 76: ...00 Series oscilloscopes The command set the user defined units Only two characters are displayed by the oscilloscope Entering None resets the units to default CH n PROBEFunc EXTUnits The query returns...

Страница 77: ...e Part 1 General Requirements UL 61010 031 Particular requirements for handheld probe assemblies for electrical measurement and test equipment partially applicable Canadian certification CAN CSA C22 2...

Страница 78: ...hese are sheltered locations where neither temperature nor humidity is controlled The area is protected from direct sunshine rain or direct wind Pollution degree 4 Pollution that generates persistent...

Страница 79: ...properly handled at the product s end of life To avoid release of such substances into the environment and to reduce the use of natural resources we encourage you to recycle this product in an appropr...

Страница 80: ...Appendix B Compliance information 62 TIVM Series Measurement System User Manual...

Страница 81: ...5 cutoff frequency 16 D derating curve 4 deskew 21 differential dynamic range 17 dimensions comp box 34 controller 34 probe tip adapter 35 sensor head 33 E environmental compliance 61 environmental co...

Страница 82: ...ummary v self cal AutoZero 14 button 8 indicator 8 13 programming 13 requirements 13 self calibration 12 sensor head 9 description xi dimensions 33 labels 9 sensor tip labels 9 17 20 sensor tip cable...

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