Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A study on stabilization of a fiber-optic current sensor using sagnac interferometer

Sagnac 간섭계형 광섬유 전류센서의 안정화 연구

  • 정래성 (성균관대학교 전자공학과) ;
  • 강현서 (성균관대학교 전자공학과) ;
  • 이종훈 (성균관대학교 전자공학과) ;
  • 송정태 (성균관대학교 전자공학과) ;
  • 이경식 (성균관대학교 전자공학과)
  • Published : 1997.04.01
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Abstract

A new method of stbilizing the sagnac interferometric fiber optic current sensor inteh presence of birefringences and phase is presented. This method is realized by dividing the output of the ac current signal with the modulation signal output. Using the technique the stability of the current sensor was improve dmore than 4.5 times at 800Arms for 2 hours. The current sensor also shows good linearity up to 100Arms.

Keywords