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Crosstalk of Switch module PXI-2529

Dear Engineers,

 

Nowadays we are facing a crosstalk-related issue when using the switch module NI PXI-2529. As shown in the attached picture, we have a large number of sensors to be measured. In our application, each sensor should be switched to be the emitter and the rest will be the receiver. The problem is that: when one sensor is excited by the signal from AWG, the same excitation signal will also appear at the acquisition channel. In my opinion, this is a phenomenon of cross-talk between the signal generation channel and the data acquisition channel.

 

 

Do you think it will help to have one more switch module, i.e., one for excitation switch and another for data acquisition switch? Do you have any suggestions for our problems?

 

Best regards

 

Yusheng_Ma_0-1657634026608.png

 

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