Vibration order analysis: I want to convert angle-based data into order-based data by applying FFT.
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I'm working on order anlysis but I don't know how to devleope a script to scale my order axis (x-axis) so that each frequency magnitude fall on the correct order. Also you can see my angle based data in the attachment.
Thanks
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/484733/image.png)
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Mathieu NOE
2021년 1월 11일
hello again
sorry, in your code Fs is not initialized - what is the relation with FFs ?
so what you have in the mat file is only the signal of the encoder, but when you do order analysis , you must acquire the encoder and some noise or vibration signals together, because what is the purpose of the analysis is the noise / vibration signal orders - not simply the fft of the encoder output.
You have to acquire synchronously the noise / vibration data and the encoder (ADC is triggered by encoder signal)
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