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Proceedings Paper

Application of coordinate transform on ball plate calibration
Author(s): Hengzheng Wei; Weinong Wang; Guoying Ren; Limei Pei
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Paper Abstract

For the ball plate calibration method with coordinate measurement machine (CMM) equipped with laser interferometer, it is essential to adjust the ball plate parallel to the direction of laser beam. It is very time-consuming. To solve this problem, a method based on coordinate transformation between machine system and object system is presented. With the fixed points’ coordinates of the ball plate measured in the object system and machine system, the transformation matrix between the coordinate systems is calculated. The laser interferometer measurement data error due to the placement of ball plate can be corrected with this transformation matrix. Experimental results indicate that this method is consistent with the handy adjustment method. It avoids the complexity of ball plate adjustment. It also can be applied to the ball beam calibration.

Paper Details

Date Published: 6 March 2015
PDF: 6 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944613 (6 March 2015); doi: 10.1117/12.2180721
Show Author Affiliations
Hengzheng Wei, National Institute of Metrology (China)
Weinong Wang, National Institute of Metrology (China)
Guoying Ren, National Institute of Metrology (China)
Limei Pei, National Institute of Metrology (China)

Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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