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Proceedings Paper

Coordinates calibration in precision detection of 3D optical deformation measurement system
Author(s): Honggang Lu; Chunsheng Hu; Xingshu Wang; Yang Gao; Wei Wu
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Paper Abstract

In order to validate the detection precision of a three Dimensions Optical Deformation Measure System (3D-OMS), a calibration method of auxiliary coordinate and the optical coordinate base on theodolites has been proposed. The installation method by using theodolites to calibrate the auxiliary coordinate and the optical coordinate has been proposed. Specifically, after the auxiliary mirrors installed, the installation accuracy is detected, then we analyzed the influence of Axis-Error of theodolite under the practical condition of our experiment. Furthermore, the influence of validation precision for the 3D-OMS caused by the misalignment of auxiliary coordinate and optical coordinate is analyzed. According to our theoretical analysis and experiments results, the validation precision of the 3D-OMS can achieve an accuracy of 1″ at the conditions of the coordinate alignment accuracy is no more than 10′ and the measuring range of 3D-OMS within ±3′. Therefore, the proposed method can meet our high accuracy requirement while not sensitive to the installation error of auxiliary mirrors. This method is also available for other similar work.

Paper Details

Date Published: 20 November 2012
PDF: 6 pages
Proc. SPIE 8563, Optical Metrology and Inspection for Industrial Applications II, 856307 (20 November 2012); doi: 10.1117/12.2000586
Show Author Affiliations
Honggang Lu, National Univ. of Defense Technology (China)
Chunsheng Hu, National Univ. of Defense Technology (China)
Xingshu Wang, National Univ. of Defense Technology (China)
Yang Gao, National Univ. of Defense Technology (China)
Wei Wu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8563:
Optical Metrology and Inspection for Industrial Applications II
Kevin G. Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)

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