摘要
常见的光纤电流传感器是基于法拉第旋光效应 ,主要用于高压大电流的测量且所用传感光纤为单模保偏光纤。利用多模光纤的微弯效应设计一种强度调制型小电流光纤传感器 ,通过检测光纤末端输出光束的光能量的变化来实现小电流的检测。
The common optical fiber electric current sensor is based on Faraday Magnetism-Photo Effect and is mainly used in detecting high-voltage strong electric current,and the optical fiber used is single-mode and polarization-ensured.A intensity modulated optical fiber sensor is designed,which makes use of the tiny bend effect to measure small electric current.With testing the change of energy of output light of optical fiber,we can measure the small electric current.
出处
《仪表技术与传感器》
CSCD
北大核心
2002年第2期10-11,共2页
Instrument Technique and Sensor
基金
航空高校自选基金资助项目
