Experiment and Simulation Study on A New Structure of Full Optical Fiber Current Sensor

Abstract

Optical fiber sensor offers an advantage of non-contact method to measure electric current. The optical fiber current sensor is based on the Faraday rotation effect and is immune from electromagnetic disturbance. In this paper a new structure of full-optical current sensor is designed. Firstly, experimental system has been set up in the laboratory to study the feasibility of the new design. Secondly, the system transmission field could be achieved by simulating the transmittance of light propagating through optical fiber by using the software. Finally, the experimental results are compared with simulation results, and there are discussions around those results. The results obtained from the present work will be useful for further research on the optical fiber current sensor.