Posted 01 August 2012 - 11:41 PM
Posted 03 August 2012 - 12:08 PM
Anyway, first start by going through the quickstart for the U3:
Then, try to connect your own signals to the U3 and view those signals using the test panel in LJControlPanel. Do you have sensors for all the things you want to measure? If you are stuck at this step, post links to technical details for your sensors for further help.
Posted 04 August 2012 - 05:21 AM
Posted 10 August 2012 - 12:34 AM
Posted 10 August 2012 - 04:11 AM
Posted 12 August 2012 - 09:41 PM
Posted 13 August 2012 - 09:19 AM
Posted 17 August 2012 - 02:52 AM
Posted 17 August 2012 - 08:33 AM
This is what is discussed in general in Section 4 of the U3 User's Guide, and specifically demonstrated in "U3 eAIN Example.vi".
But my main hurdle is to take these analog voltage values from labjack ...
If you have further questions about this step, let us know what you need help with.
This just sounds like LabVIEW programming, and nothing specific to the U3. The example above shows you how to get a voltage reading into LabVIEW. At that point, it is up to you what processing you want to do with the voltage and how you want to do that in LabVIEW. It is just standard LabVIEW programming.
... and process the same in Labview for the corresponding parameter readings.
If you need further help with this step, I would start with standard LabVIEW tutorials and documentation. If that does not solve your problem, ask NI for help, or post on the LabVIEW forums at NI.com. This step has nothing to do with the hardware, so phrase the question that way and you will get clearer help. For example, you could post a question as follows:
"I have a voltage value from 0.0 to 5.0 in a DOUBLE control. I would like to apply the following formula to that value: Torque = (100*Voltage) + 25. Then I want to write that torque to file. Please help."
Posted 22 August 2012 - 09:28 PM
well..now I am successful in my first stage. I was able to interface the torque sensor and was able to read the corresponding values from the test bench. I could also get the waveforms corresponding to the same and enter the values into excel sheet for future references.
But now I have been asked to CONTROL the test bench set up using my labjack and vary the speed of the test motor from his Labjack. So my first question is, Can we really control a system using this labjack? If yes, how can that be done? How should i approach for the same?
Awaiting for your reply ASAP. Thank you
Posted 23 August 2012 - 07:52 AM
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