应用高双折射光纤的分布力传感技术的研究  

Distributed Forces Sensing Technique Using High—Birefringent Fiber

作　　者：骆飞[1] 潘英俊[2] 黄尚廉[2] 

机构地区：[1]南京航空航天大学 [2]重庆大学

出　　处：《仪器仪表学报》1993年第3期292-297,共6页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金;航空科学基金

摘　　要：本文研究了一种分布式光纤力传感系统。这种系统基于高双折射光纤受外力扰动作用下的模式耦合原理,应用高双折射光纤作为传感光纤,采用光外差干涉技术和光程扫描方法探测沿传感光纤分布的压力点。A fiber optic sensor system for measuring distributed forces is presented.The sensing technique is based on mode coupling principle in high—birefringent fiber caused byexternal forces disturbing.The sensor system uses high—birefringent fiber as its sensing fiber,the technique of optic heterrodyne interferometry and the method of optic path scanning for de-tecting the distribution of the pressure points along the sensing fiber.The spatial resolution of thesensor system is better than 15cm.

关 键 词：高双折射光纤 分布力传感 传感技术 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]