Fiber optic voltage sensor using piezoelectric material

압전소자를 이용한 광섬유 전압센서

  • Jun, Jin-Woo (Department of Electrical Engineering, Chung Ang University) ;
  • Kim, Ho-Seong (Department of Electrical Engineering, Chung Ang University)
  • Published : 1997.07.21

Abstract

A fiber optic voltage sensor using photoelastic effect of a single-mode optical fiber, excited with a 632.8 nm He-Ne laser, is developed. The photoelastic effect is produced by piezoelectric effect for the voltage measurement. It is found that the detector output voltage is proportional to the applied voltage. Also, the frequency of the output voltage is equal to that of the applied voltage. Experimental results from a laboratory model demonstrate the feasibility of the sensor for field application in high-voltage systems.

Keywords