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Proceedings Paper

Method of 3D curved surface profile measuring and figure processing
Author(s): Xiping Xu; Guoyu Zhang; Hongmei Xu; Zhiyong An; Hongguang Sun
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Paper Abstract

Based on the principle of laser triangulation and the technology of modern photoelectric sensor, a laser scanning optical triangulation measuring system which is used to measure 3-D curved surface profile is presented, the system uses a semiconductor laser probe and combines with 2-D grating displacement measuring systems and servo-control systems to realize scanning many points for the measured curved surface. Through the Fourier transform profile detection algorithm with the frequency field low-pass filter performing, computer finishes the real time data processing, the profile of 3-D curved surface is given with high accuracy and high speed. In this paper, the mathematical model of the measuring system is introduced and the jump-error processing method of the objects with large gradient change is discussed in detail. The measuring result shows that the 3-D figure is simple in use, convenient in parameter adjustment, especially, is suitable to measure the objects surface with large gradient and low reflecting ratio.

Paper Details

Date Published: 20 September 2002
PDF: 6 pages
Proc. SPIE 4927, Optical Design and Testing, (20 September 2002); doi: 10.1117/12.471696
Show Author Affiliations
Xiping Xu, Changchun Univ. of Science and Technology (China)
Guoyu Zhang, Changchun Univ. of Science and Technology (China)
Hongmei Xu, Changchun Univ. of Science and Technology (China)
Zhiyong An, Changchun Univ. of Science and Technology (China)
Hongguang Sun, Northeast Normal University (China)

Published in SPIE Proceedings Vol. 4927:
Optical Design and Testing
Zhicheng Weng; Jose M. Sasian; Yongtian Wang, Editor(s)

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