Is a high pass filter in NI 9234 working?

[wookdong]

Hello, guys,

I am trying to measure acceleration with 20000Hz rate using NI 9234.

I am using IEPE accelerometer, AC coupling with signal conditioner.

When I run the program (measuerment studio 8.6), I am getting acceleration data.

However, if I do FFT using these data,

I found high amplitude at zero frequency.

Is this meaning a high pass filter inside NI9234 is not working?

Or is there any way to make a high pass filter active using software modification?

I would appreciate if you could help me with this issue.

thanks,

wookdong

[Seth_B.]

Hello wookdong,

I'm going to refer any questions to the post you created here.  This will help us keep our troubleshooting to one place.

Thanks,