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Proceedings Paper

Improved signal processing method for dynamically measuring radius of large precision centrifuge
Author(s): Hongzhi Zhao; Lin Wang; Yang Zhao; Dacheng Li
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Paper Abstract

An improved signal processing method for laser interferometer is investigated to measure the radius of large precision centrifuge. Based on phase and integer periodic phase measurement, it not only makes the resolution up to 1 in 2000 of a wavelength, but also enlarges the range of the interferometer. The absolute radius measurement of the 5m centrifuge with the accuracy of +/- 3.4micrometers is achieved.

Paper Details

Date Published: 3 October 1996
PDF: 4 pages
Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); doi: 10.1117/12.253037
Show Author Affiliations
Hongzhi Zhao, Tsinghua Univ. (China)
Lin Wang, Tsinghua Univ. (China)
Yang Zhao, Tsinghua Univ. (China)
Dacheng Li, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2899:
Automated Optical Inspection for Industry
Frederick Y. Wu; Shenghua Ye, Editor(s)

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