I need to make an FFT from stored data

[elfredy91]

I need to make an FFT to a stored data in a csv file, It has 2 colums, the frist one is time and second is the amplitude, I am reading the date and making a cluster with the two columns with that i can plot easily in the time domain but I can not find some block to make an FFT from an this cluster. can you help me?

[Henrik_Volkers · Accepted solution]

The (math) FFT.vi wants an array with constant samplerate and the samplerate.

The signalprocessing FFT(s) work with a wfrm (cluster of y value array, and a dt value)

If the samplerate wasn't constant,  you need to resample the data.

Reading the HELP of the FFT.vis helps 😄