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Proceedings Paper

A small angle dynamic measuring device
Author(s): Jie Wang; Xiaojun Liu; Liping Zhou; Wenlong Lu; Liangzhou Chen; Yimin Zou
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Paper Abstract

Small angle measurement has been widely use for the alignment or error compensation of a mechanical system. In this paper a small angle dynamic measurement device based on laser interference technique is introduced, which consists of a reference module and a measuring module. The measuring module is fixed on the measured object. With the variation of the small tilt angle of the measured object, the phase difference between the two beams from prism1 and prism2 changes according to it. By analyzing the interference patterns, the variation of the small tilt angle can be obtained dynamically. Experimental setup has been established and the results show that the measurement range is 15' with the resolution of 0.08", the measurement error is less than 8″.

Paper Details

Date Published: 10 October 2013
PDF: 6 pages
Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891648 (10 October 2013); doi: 10.1117/12.2041641
Show Author Affiliations
Jie Wang, Huazhong Univ. of Science and Technology (China)
Xiaojun Liu, Huazhong Univ. of Science and Technology (China)
Liping Zhou, Huazhong Univ. of Science and Technology (China)
Wenlong Lu, Huazhong Univ. of Science and Technology (China)
Liangzhou Chen, Huazhong Univ. of Science and Technology (China)
Yimin Zou, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8916:
Sixth International Symposium on Precision Mechanical Measurements
Shenghua Ye; Yetai Fei, Editor(s)

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