高灵敏度光纤扭转传感器

摘要

This paper presents a kind of sensor which makes use of microbend loss of optic fiber to detect torsion.Based on the research of torsion theory,the sensor structure has been designed,the detection mechanism has been described and related experiments have been carried out.Test results show that the sensor has a good linear response to torsion and its sensitivity can be adjusted by changing parameters of twisted and winded fiber.In the related fields of torsion test,the sensor will have certain application value.%该文提出了一种利用光纤微弯损耗对扭转进行检测的传感器.通过对扭转理论的深入研究,设计了传感结构,阐述了检测机制,并进行了相关的实验.测试结果表明,它对扭转参数具有良好的线性响应,而灵敏度随光纤的绞合绕制参数可调.在扭转检测的相关领域,所设计的这种传感器将具有一定的应用价值.