how to use filter vis and peak detectors in compactRio

[Shivkumar]

Hi  all,
           We are using compact rio 9002 with IO module 9215. We are accessing a sine wave(of 1 KHz) input with some DC components in it. We need to filter out the DC and get the peak value of that sine wave. We have developed a program to acquire the same. But the problem we are facing is we are not able to filter out the DC and get the peak values inspite of using the filter and peak detector VI's. Suggest the reason and the solution.

Regards,
Labview Lovers.

[Bassett_Hound]

Hi Shivkumar,

If you need to filter out the DC portion of the signal before you acquire the signal you may want to consider implementing AC coupling.  Which particular Filter and Peak VIs are you using?

Regards,

Bassett