Study on the Fiber Bragg Grating Accelerometer based on the Circular Ring and Novel Structure

光纤光栅是近年来最受关注，发展前景最为广阔的光无源器件之一，在光纤传感领域已经得到了广泛的应用。其中在振动测量领域，基于光纤光栅的加速度传感器由于不受电磁干扰、绝缘性好、易于联网复用等优点而受到了大量的关注与研究。本文以光纤光栅传感技术为基础，利用圆环与简支梁等新型结构，提出了三种光纤光栅加速度传感器的设计方案，并进行了实验测试。 首先提出了一种基于弹性圆环的拉弦式光纤光栅单向加速度传感器的结构设计。对受径向力圆环进行了挠度分析与振动特性分析。对传感器进行了静态压力测量，获得了压力灵敏度为343.5pm/N，换算成加速度灵敏度为27.60pm/g。利用振动台进行了动态特性实验，绘制了传感器的...In recent years, fiber Bragg grating is one of the most concerned optical passive components and has a good development prospect. It has been widely used in optical fiber sensing field. In vibration measuring field, FBG based accelerometer receives lots of attention and research for its advantages such as anti-electromagnetic interference, insulativity and multiplexing. In this paper we proposed t...学位：工学硕士院系专业：信息科学与技术学院_电磁场与微波技术学号：2312011115300