Abstract

Abstract A novel method for the measurement of vibration using an acousto optic modulator (AOM) is described. Previous methods generally rely on holographic (off-line measurement) and laser Doppler vibrometers (on line measurement). This method shows a new direction of vibration measurement using AOM rather than relying on laser Doppler vibrometer and laser Doppler displacement meter for on-line vibration measurement. A method of obtaining resolution in the range of sub-nanometer is proposed. The technique proposed not only projects a novel technique but also brings to light the possible application of AOM.

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