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http://dx.doi.org/10.5207/JIEIE.2004.18.2.135

Polarimetric fiber-optic current sensor system using a twisted fiber sensing coil  

송민호 (전북대학교 전자정보공학부)
김기혁 (전북대학교 전자정보공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.18, no.2, 2004 , pp. 135-141 More about this Journal
Abstract
We developed a polarimetric fiber-optic current sensor system for protective relaying usage. A fiber sensing coil that consisted of a length of twisted fiber and a FRM (Faraday rotator mirror) was used in order to suppress the linear birefringence effect. From the experiments with various sensing coil configurations and environmental conditions, the proposed current sensor system showed feasibility of suppressing environmental noises, and the obtained measurement stability was less than $\pm$3％ at rated primary current.
Keywords
Polarimetric fiber-optic current sensor; Twisted fiber; Linear birefringence;
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