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Proceedings Paper

Torsion measurement by using FBG sensors
Author(s): Xiaogeng Tian; Xiaoming Tao
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Paper Abstract

In this paper we studied the potential of using FBG strain sensors to measure the torsion deformation theoretically and experimentally. FBG strain sensors are bonded on the surface of a shaft. When the shaft under torsion there is strain induced in the FBG sensor and the Bragg wavelength will shift accordingly. According to the wavelength shift and photoelastic properties of the FBG sensor bonded on the shaft the torsion deformation of the shaft can be obtained. In order to minimize the measurement error the optimal direction of the FBG sensor was obtained. The influence of the orientation deviation of the FBG sensor was discussed in detail. The feasibility of this method is demonstrated by experiment and the test results agree with the theoretical analysis very well.

Paper Details

Date Published: 9 May 2000
PDF: 11 pages
Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); doi: 10.1117/12.385561
Show Author Affiliations
Xiaogeng Tian, Hong Kong Polytechnic Univ. and Xi'an Jiao Tong Univ. (Hong Kong)
Xiaoming Tao, Hong Kong Polytechnic Univ. (Hong Kong)


Published in SPIE Proceedings Vol. 4077:
International Conference on Sensors and Control Techniques (ICSC 2000)

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