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The crest factor is the ratio of the peak value over the root mean square (RMS) value of a given signal and indicates the shape of the waveform. The crest factor is defined by the following equation:

where

F_c is the crest factor

V_pk is the peak value of the signal

V_rms is the RMS value of the signal

The following block diagram illustrates an application using the SVL Crest Factor VI.

In addition to returning the crest factors, the SVL Crest Factor VI also returns the peak and RMS levels.