January 13, 2012 / By flipflopstudios
Spectral data is displayed in the frequency domain while waveform data is in the time domain. Spectral information is obtained by applying a Fourier transform to waveform data; this converts the data to show that amplitude and phase of the vibration at different frequencies. Both…
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October 14, 2011 / By flipflopstudios
Noise in a vibration signal can creep in from background vibration sources such as noise generated by the machine being monitored, or from adjacent machinery. Typically the noise signal has low amplitudes and is close to zero in the spectral data; however, in some instances…
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