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Optical Engineering

Dynamic measurement of displacement with phase-shifting technique
Author(s): Yueguang Lu; Andrew Peter Doel; David D. Walker; Xia Zhao
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Paper Abstract

A simple spatial phase-shifting setup that uses a tiled mirror and a cat's-eye retroreflector is presented. It can be used in displacement measurement when high speed and accuracy are required. An experiment is carried out to demonstrate the feasibility of the method. A root mean square (rms) accuracy of better than 5 deg is obtained in ordinary circumstance. The system errors are also studied briefly.

Paper Details

Date Published: 1 July 2003
PDF: 4 pages
Opt. Eng. 42(7) doi: 10.1117/1.1579489
Published in: Optical Engineering Volume 42, Issue 7
Show Author Affiliations
Yueguang Lu, Univ. College London (United Kingdom)
Andrew Peter Doel, Univ. College London (United Kingdom)
David D. Walker, Univ. College London (United Kingdom)
Xia Zhao, China Univ. of Mining (China)

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