Comparing the PSD to the Simple Fourier Transform for Vibration

FFTs are often the first tool engineers use to analyze the frequency content of a signal, but it is not the only tool! Power spectral densities (PSD) overcome a lot of the shortcomings of the simple Fourier transform to better analyze datasets with broad frequency content. This video compares the output of these tools for both simulated and real-world vibration data while also providing an easy interface to reproduce the analysis on your own data!
For more shock, vibration and analysis resources, check out some of our blogs:
► How To Develop a Vibration Test Standard PSD from Experimental Data [Free Software Download]: bit.ly/3yuLo3g
► Vibration Analysis: FFT, PSD, and Spectrogram Basics [Free Download]: bit.ly/3yvtCwz
► Why the Power Spectral Density (PSD) Is the Gold Standard of Vibration Analysis: bit.ly/3NzOmYy
Want to do your own analysis? Try our free enDAQ software and start analyzing today!
► enDAQ & Vibration Analysis Software Page: bit.ly/3R2GEco
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enDAQ BLOG: bit.ly/3NzxZv9
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[@TheSpinninHead]

Which method would you recommend to study human voice? FFT or psd?

[@BG-bt5mv]

What is the frequency bin width? considering in this example?

[@dondoan1937]

PSD is a second order of an FFT.