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Proceedings Paper

Moiré fringe method for roll angular displacement measurement
Author(s): Xue Yu; Chao Liu; Xian Xie; Yaopu Lang; Qinggang Liu
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Paper Abstract

In the three-dimensional angle measurement, yaw and pitch angle can be detected easily by several convention optical devices. While the roll angle is difficult to measure since its rotation axis is parallel to the incident plane. This work is based on the application of the Talbot effect with a Ronchi grating. The period of Moiré fringes which generated by two gratings will be changed with small rotation. The roll angle can be calculated by the width change of fringes.

Paper Details

Date Published: 8 October 2015
PDF: 5 pages
Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96771R (8 October 2015); doi: 10.1117/12.2199823
Show Author Affiliations
Xue Yu, Tianjin Univ. (China)
Chao Liu, Tianjin Univ. (China)
Xian Xie, Tianjin Univ. (China)
Yaopu Lang, Tianjin Univ. (China)
Qinggang Liu, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 9677:
AOPC 2015: Optical Test, Measurement, and Equipment
Sen Han; Jonathan D. Ellis; Junpeng Guo; Yongcai Guo, Editor(s)

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