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Proceedings Paper

Novel method for two-coordinate slope test with fiber optic sensor
Author(s): Yong Zhao; Pengsheng Li; Zhaobang Pu; Zhengnai Sun
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Paper Abstract

The demand for incorporating sensor technology into the production environment is being driven by the increasing need to minimize manufacturing costs whilst simultaneously producing parts of high quality. A novel simple fiber-optic sensor based on the light beam reflection principle was presented for slopes measurement. With the optical probe arrangement like a wheel, the emitting single-mode finer (SMF) as the axle and eight receiving multi-mode fibers (MMF) as the spoke, the sensor can detect the surface slopes with two- coordinate as well as the offsets of displacement measurement can be compensated. The mathematical models were established based on the ABCD Law of Gaussian beam transmission matrix optics and in the case of paraxial approximation. Simulations were performed for verifying the proposed idea, and the preliminary experimental results were obtained and its performance coincided with the simulation. The resolution of slopes test was better than 0.02 degree over +/- 30 degree, and the displacement measurement vertical resolution stayed within 0.1 micron, the lateral resolution can reach 8 micron. And with the further development of this method, it can be absolutely used in complex surface measurement in Reverse Engineering.

Paper Details

Date Published: 3 October 2000
PDF: 5 pages
Proc. SPIE 4220, Advanced Photonic Sensors: Technology and Applications, (3 October 2000); doi: 10.1117/12.401714
Show Author Affiliations
Yong Zhao, Harbin Institute of Technology (China)
Pengsheng Li, Harbin Institute of Technology (China)
Zhaobang Pu, Harbin Institute of Technology (China)
Zhengnai Sun, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 4220:
Advanced Photonic Sensors: Technology and Applications
Jinfa Tang; Chao-Nan Xu; Haizhang Li, Editor(s)

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