一种高稳定、高分辨率的光纤位移检测系统  

A fiber-optic displacement measuring system with a high stability,high resolution

作　　者：张建松[1] 刘建胜[1] 樊惠隆[2] 王伯海[1] 臧新梅[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100083 [2]中国工程物理研究院第五研究所,四川绵阳621900

出　　处：《光学技术》2006年第5期656-659,共4页Optical Technique

基　　金：国家自然基金-中国工程物理研究院联合基金(10376001)

摘　　要：介绍一种大量程、高分辨率、高稳定的光纤传感位移测量系统。该系统基于反射式强度调制机制,由光发射机、传感器、光接收机三部分组成。系统通过采用调制、解调、窄带滤波,信号支路和参考支路双通道相比测量等技术措施,来保证系统的高稳定性和高分辨率。实验还表明测量中应尽量使用朗伯特平面作为光反射面,以解决二次安装的重复性问题。A fiber-optic displacement measuring system with a high stability, high resolution within a long displacement range was introduced. The system, which is consisted of three parts- the sensor head, the optical transmitter, and the optical receiver, is based on a kind of amplitude modulation reflective fiber-optic mechanisna. The system adopts modulation, demodulation, and bisynchronous measuring to signal and reference channels in order to guarantee its stability and precision requirements. The restilts of experiments prove that reflex should be from a diffuse reflection plane, so that to solve the problem of fixing again.

关 键 词：反射式强度调制 光纤位移传感器 发射机 接收机 

分 类 号：TN206[电子电信—物理电子学]