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SensorDAQ User's Manual 

18 

software to customize your SensorDAQ program.  
 
SensorDAQ Digital Channel 

 
DIGEx01_DCU.vi 
The DCU (Digital Control Unit) provides current (up to 600 mA) for controlling 
electrical devices. It connects to the DIG channel of SensorDAQ. Inside the DCU are 
LEDs that indicate the status of the six output lines. In this example, you can control 
the duration of current sent to the output lines. 

 
DIGEx02_PhotogateCount.vi 
This example performs simple event counting of blocked gates. 

 
DIGEx03_PhotogateTimedCount.vi 
This example performs timed counting between blocked gates.  

 
DIGEx04_PhotogateTiming.vi 
In Photogate Timing mode, the counter sends back the timing measurements. 

 
DIGEx05_PhotogatePicketFence.vi 
This VI demonstrates how to use the Vernier Picket Fence and the Photogate to 
study free fall. The Picket Fence is dropped through the Photogate and the motion 
timing is measured from the leading edge of one bar blocking the beam until the 
leading edge of the next bar blocks the beam (period measurement). This timing 
continues as all eight bars pass through the Photogate. 

 
DIGEx06_PhotogateObjectVelocity.vi 
This VI demonstrates how to use the Photogate to determine the velocity of an 
object. The time when the object first enters the Photogate until it completely exits 
the Photogate is measured (blocked to unblocked semi-period measurement). The 
length of the object can then be used to calculate the object's velocity. 

 
DIGEx7_RotaryMotionSensor.vi 
The Vernier Rotary Motion Sensor can be used with the DIG channel to measure 
angular position. 

 
DIGEx8_RadiationTimedCount.vi 
The Vernier Radiation Monitor can be used with the DIG channel of SensorDAQ to 
measure radiation. The reading will be in counts.

 

 

 
DIGEx9_MotionDetector.vi 
The Vernier Motion Detector (MD) can be connected to the DIG channel to measure 
distance. 
 
Feedback and Control 

 
ControlEx01_ControlDigOutWithSensor.vi 
Combining sensors with control via the SensorDAQ screw terminal or DIG channel 
allows you to experiment with feedback. In this example, as the sensor data rises to a 
preset threshold, a connected LED will light up. 

Содержание SensorDAQ

Страница 1: ...Vernier SensorDAQ User s Manual Vernier Software Technology 13979 SW Millikan Way Beaverton Oregon 97005 2886 503 277 2299 Toll Free 888 837 6437 FAX 503 277 2440 www vernier com info vernier com...

Страница 2: ...Vernier com and SensorDAQ are our trademarks or trade dress National Instruments NI ni com and LabVIEW are trademarks of National Instruments Corporation Refer to the Terms of Use section on ni com le...

Страница 3: ...ensorDAQ Components 4 Providing Power to SensorDAQ 4 Software 5 Connecting Sensors and Signal Lines 5 Vernier Analog Sensors 5 Vernier Digital Sensors 6 Screw Terminal 6 Sample Experiments VIs in LabV...

Страница 4: ...e SensorDAQ s screw terminal for control projects Examples include alarm systems and temperature controlled environments By following this guidebook you will learn to Set up and collect data using Ver...

Страница 5: ...will step you through the installation of the NI DAQ software We recommend that you accept the default directory Copy the VI sample folder SensorDAQ from the CD to the user lib folder located in the m...

Страница 6: ...lso if an auto ID sensor is attached the current sensor reading will appear below the toolbar as shown in the figure 7 Click LabVIEW will begin plotting data in the graph Once data have been collected...

Страница 7: ...by the DAQmx driver 4 The USB Port is for computer connection 5 Use the Tie Wrap Point to lock down and secure the device SensorDAQ side view 1 Ch 1 Ch 3 BTA British Telecom Analog channels for Verni...

Страница 8: ...e familiar with programming DAQmx LabVIEW examples implementing DAQmx functions have been provided And for those users familiar with Measurement and Automation Explorer MAX there is also some function...

Страница 9: ...otion Detectors Radiation Monitors Photogates and Rotary Motion Sensors One digital sensor at a time can be connected to SensorDAQ The digital channel DIG which accepts British Telecom style plugs wit...

Страница 10: ...channel 0 1 4 P0 0 3 GND Input or Output Digital I O Signals You can individually configure each signal as an input or output 6 5 V GND Output 5 V Power Source Provides 5 V power 7 PFI 0 GND Input PF...

Страница 11: ...nfigured for pulse output timing input event counting or as a digital trigger For examples of how to use the screw terminal signals in LabVIEW see Appendix A Sample Experiments VIs in LabVIEW Sample e...

Страница 12: ...ntify the sensor and adjust the graph and axes labels accordingly 4 Allow the data collection to complete after 18 seconds or you may stop it early by clicking the STOP button In this example Ch 1 is...

Страница 13: ...example we use a Vernier Stainless Steel Temperature Probe As the data rises to a preset threshold a connected LED will light up It will also help you familiarize yourself with SensorDAQ s output lin...

Страница 14: ...ons in LabVIEW Most users will eventually need to create their own custom LabVIEW VI One method for creating your own custom VI is to build off of an existing example The following steps show how to t...

Страница 15: ...Terminal OFF node located at the bottom left corner of the Setup subVI and right click your mouse A pop up list appears Select Create Constant The default input for this node appears click on it and s...

Страница 16: ...ll out that data point The reason that Ch 1 data is in an array format is because in some cases the VI may be set up to read an array of data points each time the SensorDAQ_Read vi is called 3 Next fi...

Страница 17: ...e wired into the DIO subVI the DAQmx Task Cluster Setup Parameters and error in 8 Make sure the DIO subVI is configured with Out Lines on Indefinitely 9 The DIO subVI requires an array of four Boolean...

Страница 18: ...izontal pointer slide in the Search if you can not find it 5 Label this control as Output Voltage 6 Double click on the maximum value of this control to highlight and change the value to 5 since this...

Страница 19: ...ives you an easy way to use SensorDAQ s digital channel for exciting do it yourself projects Math Machines Math Machines www mathmachines net creates customized connector and control experiments for t...

Страница 20: ...ng is used the VI waits for the user defined condition to be met prior to data collection AnalogInEx05_ModifyWithPopups vi This example allows you to select the sensor s units and configure the data c...

Страница 21: ...l the leading edge of the next bar blocks the beam period measurement This timing continues as all eight bars pass through the Photogate DIGEx06_PhotogateObjectVelocity vi This VI demonstrates how to...

Страница 22: ...nOutWithSensor vi In this example the reading of a sensor controls the Analog Out voltage ControlEx08_ControlAnalogOut vi The Analog Out feature allows you to command screw terminal 9 AO 0 to output a...

Страница 23: ...be using SensorDAQ s analog in lines 11 and 12 AI0 and AI1 to measure voltage TerminalEx05_CounterTiming vi The Counter feature allows you to command screw terminal 7 PFI 0 to measure timing of a puls...

Страница 24: ...or zoom out Data can be stored and deleted to compare against other runs as well as saved to file These options can be found in the menu selection Analysis tools are described in Appendix B Using DAQm...

Страница 25: ...utton on the toolbar then click and drag the mouse to select a region on the graph The graph will rescale expanding the selected region to fill the plotting area In addition there are other zoom optio...

Страница 26: ...can have LabVIEW collect temperature data only until the temperature raises or falls to to 35 C Pre Trigger Data You may also set the number of points to be collected before the trigger condition is...

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