Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23510
Title: Torsion measurement using fiber bragg grating sensors
Authors: Tian, XG
Tao, XM 
Keywords: Holographic lithography
Photoresist
Transmission grating
X-ray lithography
Issue Date: 2001
Source: Experimental mechanics, 2001, v. 41, no. 3, p. 248-253 How to cite?
Journal: Experimental Mechanics 
Abstract: In this paper, the authors study the potential of using fiber Bragg grating (FBG) strain sensors to measure the torsion deformation theoretically and experimentally. FBG sensors are bonded on the surface of a shaft. When the shaft is 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 to the shaft, the torsion deformation of the shaft can be obtained. To minimize the measurement error, the optimal direction of the FBG sensor is obtained. The influences of the orientation deviation of the FBG sensor are discussed. The feasibility of this method is demonstrated by experiment, and the test results agree well with the theoretical analysis.
URI: http://hdl.handle.net/10397/23510
ISSN: 0014-4851
DOI: 10.1007/BF02323141
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