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Proceedings Paper

Absolute dynamic measurement of high-g acceleration using grating interferometer
Author(s): Wensheng Hua; Xiao-Mei Xu
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Paper Abstract

This paper is concerned with a novel optical method for dynamic measurement of high-g acceleration movement.THis method is based on the phase shift of the diffraction light beams due to the movement of the grating. The two interfering diffraction light beams are arranged in a differential way, which enables the interferometer to be only sensitive to the movement in the desired direction. A Shaker and a Hopkinson Bar are used to generate the acceleration movement up to 10 5g. The test results from our laser grating interferometer are compared with that from several different kinds of accelerometers. The uncertainty of the nw method for 10g-10 4g is less than 3 percent, and for 10 4g-10 5g is less than 5 percent.

Paper Details

Date Published: 1 June 1998
PDF: 5 pages
Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); doi: 10.1117/12.307713
Show Author Affiliations
Wensheng Hua, Chang-Cheng Institute of Metrology and Measurement (China)
Xiao-Mei Xu, Chang-Cheng Institute of Metrology and Measurement (China)


Published in SPIE Proceedings Vol. 3411:
Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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