一种光纤三相电流传感器的设计  

Designing of a optic fiber three-phase currents sensor

作　　者：刘彬[1] 张君正[1] 张秋婵[1] 

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《传感器技术》2002年第1期14-16,共3页Journal of Transducer Technology

摘　　要：提出一种只用三个传感头、一套光路、一套信号处理部分实现对高压三相电流同时检测的混合式光纤传感系统 ,给出了其在一相实验中的实验结果。由于光路系统采用了基于相位压缩原理的微分干涉式结构 ,因此该系统不受外界缓变量 (如温度 )的影响 ;与一般干涉仪相比该系统也因相位压缩而使工作的线性范围扩大了 2 2A hybrid optic fiber sensor is proposed with three sensor heads,a optic fiber sensing arm,a signal process which can measure three phase currents simultaneously,and its experimental results in single phase is abtained.Because optic circuit used differentiating interferometer based on phase compress theory,the system can not be effected by outside slow variety such as temperature.Compared with common interferometers,the linearity range of this system was enlarged by 220 times for phase compress.

关 键 词：三相电流 相位压缩 干涉仪 传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]