干涉型光纤微弱直流电场传感器的设计  

Design of Interferometric Fiber-Optic Weak DC Electric-Field Sensor

作　　者：王晓扬[1] 李新碗[1] 汪歆[1] 都智刚[1] 陈建平[1] 

机构地区：[1]上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200240

出　　处：《传感技术学报》2008年第5期765-768,共4页Chinese Journal of Sensors and Actuators

摘　　要：主要研究了基于Michelson干涉仪的光纤微弱电场传感器的原理,设计并实现了PLZT非线性电致伸缩材料为敏感元件的"工"字型微弱直流电场传感及其探测系统,该系统能较好解决1/f噪声问题。实验结果表明,系统对被测电场具有非常好的线性响应。The principle of the weak DC electric field sensor based on the Michelson fiber-optic interferomettic structure has been studied. A new transducer utilizing the nonlinear effect of the electrostrictive ceramics （e. g. PI.ZT） is proposed. The sensing system is experimentally implemented to overcome the 1/f noise issue. The sensor has good linearity of response to the electric field.

关 键 词：电场传感器 电致伸缩 光纤干涉仪 换能器 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]