Period and Amplitude

The AMPLITUDE or magnitude of a vibration is expressed in three terms: peak-to-peak, peak, and root mean squared. The peak-to-peak (P-P) is a value acquired from the difference between the highest and lowest values during a given period. Peak (P) is the absolute value of the highest and lowest value during a given period. Root mean squared (RMS) for a sinusoidal waveform is calculated by the following equation: RMS = Peak * sin(45) or 0.707

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Last updated: November 24, 2002