FFT of vibration data

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gagan sharma
gagan sharma 2020-12-22
编辑： Walter Roberson 2020-12-22
I have vibration data in time domain and i m unable to do FFT of this. please guide me
sampling rate 800 sample/sec
thanks

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Adeel Ashraf
Adeel Ashraf 2020-12-22
编辑：Walter Roberson 2020-12-22
Fs = 800; % sampling rate of 1000 Hz
t = 0:1/Fs:1-1/Fs;
x = ad2;
xdft = fft(x);
xdft = xdft(1:length(x)/2+1);
DF = Fs/length(x); % frequency increment
freqvec = 0:DF:Fs/2;
plot(freqvec,abs(xdft))
I hope this can work

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