Fast Fourier Transform of Frequency Analysis in Labview

Question

I'm currently measuring the signal from 3 direction vibration sensor. I wan to convert my signal to a FFT form to determine the frequency analysis of it. Anyone got idea how I do it in Labview?

Answer 1

Somehow I wan to use the DC component from my arduino ADC and compute it into FFT. I tried using this configuration as shows here: https://i.sstatic.net/Yr5FP.png But the output of FFT i get doesnt seems much effect when sustained to huge voltage changes overtime in my ADC reading.

Anyone got better way to use FFT to compute the voltage signal from my ADC?

Answer 2

Check out Signal Processing >> Waveform Measurements as well. This has slightly higher level functions which will work out all of the magnitudes and frequencies for you as well. These do require the full development system though.

Answer 3

There is an FFT VI under Signal Processing >> Transforms on the Functions Palette that should do what you're asking. Probably not a bad place to start.