Specs: What is Crest Factor?

Question - What is crest factor?

Answer - Crest factor is the ratio of the peak value to the RMS value. Thus, crest factor specifies the dynamic range of a true RMS instrument.

For sinusoidal waveforms, the crest factor is 1.414.
For a symmetrical square wave the crest factor is unity.
The crest factor of a rectangular pulse is related to its duty cycle; as the duty cycle decreases the crest factor increases.

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Numéro de la FAQ 69921