NI 9234 sensor offset

[Yixiao-uncle]

Hi: I need to acquire dynamic pressure signal using NI-9234 Sound and Vibration module.

Unfortunately my sensor measurement chain gives as output the dynamic signal plus a 7V offset signal. This offset signal is used for check of the instrumental chain, so I dont need and I would acquire the signal with AC coupling in the NI 9234 module.

My question is: may I apply a +7Vcc signal to the module and then apply the AC coupling to remove the offset?

Thank you

Antonio

[Henrik_Volkers]

Shouldn't be a problem. A common usecase are IEPE sensors for this device, where a ~12V Bias (Offset) is used.