Signal problem using NI-USB-6361

[Kwangmin_Kim]

Hi, I'm Kwangmin.

Currently, I try to test the HTS coil using DAQ system.

The DAQ system is composed of SCXI-1000, SCXI-1125(with 1328) --> SCXI-1349-->NI-USB-6361--> LabVIEW.

But, the measured signal has the big problem.

I connected NI-USB-6361 to the module-1 of SCXI.

Module-1's signal is good but module-2, module-3, mudule-4 signals are very unstable.

If, I connected NI-USB-6361 to the module-2 of SCXI.

Module-2's signal is good but module-1, module-3, mudule-4 signals are very unstable.

I didn't find the reason of this problem.

My English is very poor and not enough for explaining to this situation.

So, I attached the test results.

Please give to me your good comment.

-Kwangmin Kim

[RichieTheBard]

What is the rate you are using for acquiring the data? Have you verified if acquiring at a slower rate also results in this problem?

Have you also tried the different Digitization Modes, Multiplexed and Parallel? Go to details->Cabling.

If you would feel more conformtable talking about this in your native language, I would also suggests posting this on that section of the forums.