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Proceedings Paper

Study on the metrological performance of self-calibration angle encoder
Author(s): Yao Huang; Zi Xue; Dan Qiao; Yan Wang; Chunran Yue; Guixin Liu; Zhichao Wang
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Paper Abstract

The self-calibration method for angle measurement is introduced, and the optimal arrangement of several equal distance distribution groups of reading heads was proposed to realize highly effective restraint of the specified Fourier components of angular measuring deviation in loosely restricted environment. Base on this method, a self-calibration angle encoder system was developed using micro reading heads, glass scale disc, air bearing, and multi-channel counter. According the method of examination of the angular measuring standard, the metrological performance of the system was evaluated using national angle standard of China. The evaluation result revealed that the measuring deviation is within ±1.5″, the measuring repeatability is less than 1.1″. Referring to the verification scheme of measuring instrument for plane angle, the system can be used to calibrate the angular measuring instrument with max permissible error worse than ±4.5″in situ.

Paper Details

Date Published: 27 September 2016
PDF: 8 pages
Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 96840O (27 September 2016); doi: 10.1117/12.2246004
Show Author Affiliations
Yao Huang, National Institute of Metrology (China)
Zi Xue, National Institute of Metrology (China)
Dan Qiao, China Jiliang Univ. (China)
Yan Wang, China Jiliang Univ. (China)
Chunran Yue, Beijing Institute of Metrology (China)
Guixin Liu, Beijing Institute of Metrology (China)
Zhichao Wang, Beijing Institute of Metrology (China)


Published in SPIE Proceedings Vol. 9684:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Yudong Zhang; Fan Wu; Ming Xu; Sandy To, Editor(s)

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