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Proceedings Paper

Form error automatic measurement system based on optical fiber sensing array
Author(s): Shan Jin; Yong Lv; Qing Shan Chen
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Paper Abstract

A novel high accuracy form error optical measurement system based on reflective intensity modulation optical fiber sensor is presented. Combing the optical fiber sensor technology and optical fiber communication technology, the system is developed by using optical switch to realize the Time Division Multiplex (TMD) of optical fiber sensing array, improve the system efficiency, reduce cost and suppress errors caused by the movement of optical fiber. SNR (signal noise ratio) and accuracy of the system are enhanced through lock-in amplifier. The intensity fluctuation of the reference light is adopted to correct the effects of the power variation of light source and so as to improve stability of the system. The experiment results show that the resolution of the system is up to 0.1μm and repeatability is about 0.5%. The architecture of the system is very simple that it can be used in multiple form error measurement of mechanical parts of different shapes by changing the number and layout of the optical fiber sensor array flexibly.

Paper Details

Date Published: 12 March 2008
PDF: 9 pages
Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 662417 (12 March 2008); doi: 10.1117/12.791114
Show Author Affiliations
Shan Jin, Beijing Institute of Machinery (China)
Yong Lv, Beijing Institute of Machinery (China)
Qing Shan Chen, Beijing Institute of Machinery (China)


Published in SPIE Proceedings Vol. 6624:
International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing

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