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Your search keyword '"Zhang, Lieshan"' showing total 3 results
Start Over Author "Zhang, Lieshan" Topic electrical and electronic engineering
3 results on '"Zhang, Lieshan"'

2. Amplitude measurement of weak sinusoidal water surface acoustic wave using laser interferometer

Author

Xiaolin Zhang, Wenyan Tang, and Zhang Lieshan

Subjects
Physics, Accuracy and precision, business.industry, Acoustics, Surface acoustic wave, Interference (wave propagation), Laser, Signal, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Interferometry, Amplitude, Optics, Surface wave, law, Electrical and Electronic Engineering, business
Abstract

To determine the amplitude of weak sinusoidal water surface acoustic wave (WSAW), a method based on the spectrum analysis of the phase-modulated interference signal is developed. Calculated from the amplitude spectrum of the detection signal, a characteristic ratio indicates that the phase-modulation depth of a WSAW is suggested by determining the amplitude of a WSAW according to their functional relationship. Experimental investigations for a 4 kHz WSAW evaluate the measurement’s precision with an amplitude measurement standard deviation of 0.12 nm. The measurement accuracy also is demonstrated by the experimental investigations. The theory of this method is briefly described, and the experimental setup is presented.

Published
2015

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