多环光路结构光学电流传感头研究

Study on Optical Current Transducers with Dual-Ring or Multiple-Ring Optical Path

增加环绕电流的光束环路数是提高法拉第效应光学电流传感器灵敏度的主要方法.本文介绍了利用正交双全反射保偏原理设计的双环路及多环路传感头结构,并对双环结构进行了实验测试.

To inerease the number of passes of light around the active conductor is themain methods to incerease sensitivity of Faraday effect optical current transducers(OCTs). In this paper, a dual-ring and a multiple-ring optical path structure of OCTsensing probe is designed and the experimental results of the dual-ring structure are pre-sented.