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Proceedings Paper

Review and prospect of optical electric-power sensor
Author(s): Changsheng Li; Toshihiko T. Yoshino; Xiang Cui
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Paper Abstract

Optical fiber sensors for the measurement of electric power are reviewed. We focus on the direct measurement approach, which allows electric-power-sensing signal to be directly obtained from light wave canier. Based on Pockels and Faraday effects, three kinds of optical electric-power sensors have been developed, including the combination of a Faraday medium with a Pockels medium in cascade; utilization of the single crystal exhibiting both Faraday effect and Pockels effect; and application of the electro-optic crystal multiplier. Potential applications of optical electric-power sensors lie in electric power industry and the field of electromagnetic compatibility. Measurement of active power, uncertainty and effects of temperature variations and vibration are key problems to be solved for optical electric-power sensor. Some corresponding solutions are proposed.

Paper Details

Date Published: 9 September 2002
PDF: 8 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481960
Show Author Affiliations
Changsheng Li, Gunma Univ. (Japan)
Toshihiko T. Yoshino, Gunma Univ. (Japan)
Xiang Cui, North China Electric Power Univ. (China)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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