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Optical Engineering

Fiber Bragg grating current sensor using linear magnetic actuator
Author(s): Jianmin Gong; Chi Chiu Chan; Min Zhang; Wei Jin; J. M. K. MacAlpine; Y. B. Liao
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Paper Abstract

We report a novel, to our knowledge, current sensor based on a fiber Bragg grating (FBG). Using a cantilever beam and a linear magnetic actuator, the change of current is transferred to the Bragg wavelength shift of the FBG with good linearity and repeatability. The current sensor thus gains the merits of FBG sensors, and thus is immune to light intensity fluctuation, multiplexing capability, etc., and can be adopted for real industrial monitoring.

Paper Details

Date Published: 1 March 2002
PDF: 2 pages
Opt. Eng. 41(3) doi: 10.1117/1.1446464
Published in: Optical Engineering Volume 41, Issue 3
Show Author Affiliations
Jianmin Gong, Hong Kong Polytechnic Univ. (Hong Kong)
Chi Chiu Chan, Hong Kong Polytechnic Univ. (Hong Kong)
Min Zhang, Hong Kong Polytechnic Univ. (Hong Kong)
Wei Jin, Hong Kong Polytechnic Univ. (Hong Kong)
J. M. K. MacAlpine, Hong Kong Polytechnic Univ. (Hong Kong)
Y. B. Liao, Hong Kong Polytechnic Univ. (Hong Kong)


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