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Robert Skerik

Robert Skerik

Lead Instructor at Technical Associates of Charlotte and ISO CAT IV vibration analyst with 35 years in predictive maintenance and 13 patents in vibration signal processing.

Sep 16, 2026

5:35
So why don't we just turn the F-Max up?
5:37
Well, you could do that, but the F-Max has all those lower frequency, high amplitude signals, and they will drown out in the spectrum what's happening with the bearings, the gears, the lubrication, the cavitations.
5:59
Now, I have to keep saying in the spectrum because the spectral technology, the FFT, the fast Fourier transform algorithm, that's part of the problem.
6:12
It doesn't understand anything that isn't that roller coaster sine wave.
6:19
And these four plant killers, they do not generate sine waves.
6:23
They generate impacting and friction.
6:26
And the FFT, the spectrum, doesn't understand that language.
7:32
So tell me a little bit about how we can capture that and actually use that information to make decisions.

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