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Theoretical research on torsion measurement by FBG and its simulation verification
Author(s): Shanchao Jiang; Ping Lin; Yongming Chen; Changbin Tian
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Paper Abstract

Decomposing the tangential force which impacts on the fiber into radial forces and utilizing optical fiber line force model, one novel temperature insensitivity fiber Bragg grating (FBG) torsion measurement model is proposed in this paper. Basic principle of this torsion measurement model is that center wavelength shift of FBG is analyzed to obtain the torsion angler of optical fiber. In order to get the angle of torsion per unit length resolution of this measurement model, simulation experiment is carried out. Results of the simulation experiment show that torsion angle resolution of this measurement model changes from -1.76·10-3 rad to 2.36·10-2 rad with detection range ±0.5rad. The demand of the torsion measurement model is just one embedded FBG which decreased the torsion detection expense greatly.

Paper Details

Date Published: 14 February 2019
PDF: 6 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110483G (14 February 2019); doi: 10.1117/12.2518288
Show Author Affiliations
Shanchao Jiang, Yancheng Institute of Technology (China)
Ping Lin, Yancheng Institute of Technology (China)
Yongming Chen, Yancheng Institute of Technology (China)
Changbin Tian, Shandong Univ. (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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