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Precise measurement of large roll angle using digital speckle pattern interferometry
Author(s): Jing Yang; Sijin Wu; Weixian Li; Fan Wu; Ji Liu; Lianxiang Yang
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Paper Abstract

Recently, a non-cooperative method of roll angle measurement using digital speckle pattern interferometry (DSPI) is introduced. Mechanism was deduced and the mathematic model of roll angle measurement was established. The novel method also enjoys some other advantages, such as high-accuracy, stand-off, non-contact, and full-field measurement. However, this method is only used for precise measurement of very small roll angle which is up to a few milliradians due to the limitation of DSPI’s measuring range. In this article, a means of range enlargement for DSPI roll angle measurement is introduced. With this means, large roll angle can be divided into a number of small angles which are measured in sequence. Therefore, the large angle is then determined by calculating the sum of these small angles. The proposed method of roll angle is characterized by high-resolution and large-range measurement.

Paper Details

Date Published: 7 March 2019
PDF: 8 pages
Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 1105343 (7 March 2019); doi: 10.1117/12.2512422
Show Author Affiliations
Jing Yang, Beijing Information Science & Technology Univ. (China)
Sijin Wu, Beijing Information Science & Technology Univ. (China)
Weixian Li, Beijing Information Science & Technology Univ. (China)
Fan Wu, Beijing Information Science & Technology Univ. (China)
Ji Liu, North Univ. of China (China)
Lianxiang Yang, Oakland Univ. (United States)


Published in SPIE Proceedings Vol. 11053:
Tenth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Jie Lin, Editor(s)

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