Squaring signals and putting them through a Bandpass Filter

[mome]

Hi Everyone

Once again on "building Flickermeter in Labview", I have taken the advice of breaking the circuit into small portions and this is one of them. I tried to attach this portion and am not sure if you will see it. I am unable to display the waveform from Equi-Ripple Bandpass filter, how do I go about doing this? I'm using a student version 7.

Regards

Mome

[johnsold]

Mome,

You are using the Point by Point version of the filter. It takes in one point at a time and returns one point at a time. You either need to accumulate the points (perhaps via a shift register) to get an array or waveform or use the standard filter VI which uses arrays or waveforms as input and output. Since your signal source produces 100 samples at a time, the array or waveform versions make more sense.

I do not have Student version 7 available, so I cannot tell you exactly which VIs or where they are located.

Lynn