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DAQ by USB-6008

Dear sir, 

  I have an DAQ experiment by using USB-6008 and current transducer, I expect an AC current waveform can be obtained. However, I am confused that the 6008 box converts my AC current signal to DC signal, I cannot recover the orignal AC current waveform from the labview, how can I solve it?

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Message 1 of 5
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That statement doesn't make sense to me.  The USB-6008 can read +/- 10 V at up to 10,000 samples/second.  So it can read an AC signal.

 

What do you mean by it converted it to DC?

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yes, its input can read +-10V ac signal, but its output is 0-5V dc signal, it converts my AC signal to DC signal, I cannot see the AC sinewave.

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@8022303339 wrote:

yes, its input can read +-10V ac signal, but its output is 0-5V dc signal, it converts my AC signal to DC signal, I cannot see the AC sinewave.


Either we do not understand your problem from your explanation, or you do not understand what are the features of this USB-6008. Maybe you should post a wiring diagram, showing your full assembly with wires...

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Message 4 of 5
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Yes.  Its analog output is a 0-5V signal at up to 150 samples per second.

 

You didn't mention anything about outputting the signal you were trying to read.

 

What exactly are you trying to do and why?

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