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Proceedings Paper

A micro displacement measurement method based on PGC demodulation of space optics
Author(s): Zhenyu Xiong; Xudong Yu; Xingwu Long; Youguang Guo
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Paper Abstract

An improved interferometric system aiming at measuring micro displacement is put forward on the basis of phase generated carrier(PGC) demodulation of space optics. This system can improve the accuracy of Absolute Gravimeter(AG) by measuring the amplitude and direction of ground vibration. While the carrier frequency is between 1K and 2K, ground vibration with low frequency (10Hz to 100Hz) and micro vibration amplitude (30nm to 300nm) can be obtained, which satisfies the requirements of AG.

Paper Details

Date Published: 28 February 2017
PDF: 13 pages
Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102561Z (28 February 2017); doi: 10.1117/12.2257311
Show Author Affiliations
Zhenyu Xiong, National Univ. of Defense Technology (China)
Xudong Yu, National Univ. of Defense Technology (China)
Xingwu Long, National Univ. of Defense Technology (China)
Youguang Guo, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10256:
Second International Conference on Photonics and Optical Engineering
Chunmin Zhang; Anand Asundi, Editor(s)

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