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Proceedings Paper

Research on temperature independent FBG obliquity sensor
Author(s): Ye Cao; Xiu-rong Ma; Wei Fang; Gui-yun Kai; Xiao-yi Dong
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Paper Abstract

A novel FBG obliquity sensor is proposed. In this sensor one half of the FBG is stick to the fixed end of a cantilever, and the other half remains at freedom state. The difference of the center reflection wavelength of the two half of the FBG changes linearly with the sine of the obliquity from 0284 to 0393(linear degree 0.9956) . In this sensor cross sensitivity is alSo eliminated by the different strain coherent of the two half FBG. If combined with another sensor of the same structure, the sensing of two dimensional obliquity is achieved. The research demonstrates that the new sensor system has the advantages of simple and compact structure, easy manipulation, low cost, light weight, etc.

Paper Details

Date Published: 5 March 2007
PDF: 8 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952N (5 March 2007); doi: 10.1117/12.725890
Show Author Affiliations
Ye Cao, Tianjin Univ. of Technology (China)
Xiu-rong Ma, Tianjin Univ. of Technology (China)
Wei Fang, Tianjin Univ. of Technology (China)
Gui-yun Kai, Nankai Univ. (China)
Xiao-yi Dong, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III

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