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Proceedings Paper

A novel configuration for the transducer of magnetostrictive fiber-optic interferometric sensors
Author(s): Changhai Shi; Jianping Chen; Xinwan Li; Ailun Ye; Junhe Zhou; Yi Zhang; Qing Xue; Lin Hong
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Paper Abstract

A novel configuration for the transducer of magnetostrictive fiber-optic sensors was proposed and implemented. It is composed of a rectangle and two half-circles. The transducer with the novel configuration has not only higher sensitivity than that of traditional configurations, but good directivity. The magnetostriction was analyzed compared with that of cylindrical transducers. It is shown that the system sensitivity can be improved by increasing the long-side of rectangle and shortening the perimeters of the two half-circles. Two transducers with cylindrical and racetrack configurations were fabricated. Moreover, an experimental setup to measure the low-intensity magnetic field detection responses was built up. Experimental results verified the analysis. For its good directivity, three of them can be compounded as a vector magnetometer to measure three orthogonal components of magnetic field.

Paper Details

Date Published: 5 December 2005
PDF: 7 pages
Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60191D (5 December 2005); doi: 10.1117/12.635609
Show Author Affiliations
Changhai Shi, Shanghai Jiaotong Univ. (China)
Jianping Chen, Shanghai Jiaotong Univ. (China)
Xinwan Li, Shanghai Jiaotong Univ. (China)
Ailun Ye, Shanghai Jiaotong Univ. (China)
Junhe Zhou, Shanghai Jiaotong Univ. (China)
Yi Zhang, Shanghai Jiaotong Univ. (China)
Qing Xue, Shanghai Jiaotong Univ. (China)
Lin Hong, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 6019:
Passive Components and Fiber-based Devices II
Yan Sun; Jianping Chen; Sang Bae Lee; Ian H. White, Editor(s)

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