Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Design of Current Probe Using Faraday Effect of Optical Fiber

광 파이버의 패러데이 효과를 이용한 전류측정용 프로브 설계

  • Kang, Hang-Sik (Dept. of Electronic Engineering, Seoul City University) ;
  • Kim, Chul-Ju (Dept. of Electronic Engineering, Seoul City University)
  • 강항식 (서울시립대학교 전자공학과) ;
  • 김철주 (서울시립대학교 전자공학과)
  • Published : 1995.07.20
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Abstract

A probe type fiber-optic sensing techique for electric current measurement is applied in this paper. The technique is based on the Faraday effect which meaning is that polarization state of light is rotated by magnetic field. In experiment, test wire is located at inside and outside of the probe to be measured. The experimental results prove not only linear property, but also polarization rotation property according to the distance from outside of probe.

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