光学技术, 2015, 41 (1): 89, 网络出版: 2015-04-14
基于光纤输出光斑旋转的位移传感器
Displacement sensor based on output spot rotation in optical fiber
光纤传感 宏弯损耗 光斑旋转 光斑角度 受压位移 fiber sensor macro bending loss spot rotation spot angle compression displacement
摘要
实验设计了两个光纤环,减小光纤环1的半径使光纤发生宏弯损耗,获得两光斑.此时再压缩光纤环2,发现两光斑整体随光纤环2的受压位移在一定受压范围内表现出了很好的旋转性.通过两光斑旋转角度随光纤环2受压位移的一一对应关系,经实验数据处理获得了光斑角度与线圈受压位移存在一定范围的线性关系.同时实验分析了光纤环2的直径和光纤环2的紧绕圈数对压缩位移灵敏度的影响.
Abstract
The experiment of two optical fiber coils is designed and two spots are won by reducing the radius of the fiber coil 1 leading to macros bending loss.By this time,compressing the fiber coil 2,the spots begin to rotate along with compression displacement within a certain range.The phenomenon that the spot angle and the compression displacement of the fiber coil 2 exists a linear relationship within a certain range by the experiment data is found.At the same time,the impact of the initial diameter and cylinder number of the fiber coil 2 on the compression displacement sensitivity is researched.
王华, 吴骏, 査媛, 马军山. 基于光纤输出光斑旋转的位移传感器[J]. 光学技术, 2015, 41(1): 89. WANG Hua, WU Jun, ZHA Yuan, MA Junshan. Displacement sensor based on output spot rotation in optical fiber[J]. Optical Technique, 2015, 41(1): 89.
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