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Proceedings Paper

Simultaneous temperature and electric current measurement by using different Faraday sensing elements in an optical current sensor
Author(s): Benshun Yi; Beatrice C.B. Chu; Yanbing Liu; Kin Seng Chiang
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Paper Abstract

An optical current sensing system for simultaneous measurement of electrical current and temperature is proposed and constructed. The system consists of two channels in which two sensing elements with different temperature dependence of Verdet constant were used for current measurement and the ratio between the output signals of these two channels was used for temperature measurement. The principle of the sensing configuration is described and experimental results are given.

Paper Details

Date Published: 7 May 1999
PDF: 4 pages
Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); doi: 10.1117/12.347728
Show Author Affiliations
Benshun Yi, City Univ. of Hong Kong (Hong Kong)
Beatrice C.B. Chu, City Univ. of Hong Kong (Hong Kong)
Yanbing Liu, Huazhong Univ. of Science and Technology (China)
Kin Seng Chiang, City Univ. of Hong Kong (Hong Kong)


Published in SPIE Proceedings Vol. 3740:
Optical Engineering for Sensing and Nanotechnology (ICOSN '99)
Ichirou Yamaguchi, Editor(s)

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