基于球型熔接结构的马赫曾德光纤应变传感器  

Mach-Zehnder fiber-optic strain sensor based on spherical splicing structure

作　　者：唐小亮 杨芳 尹文阔 周亚兵 TANG Xiaoliang;YANG Fang;YIN Wenkuo;ZHOU Yabing(Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd,Qingyuan 511500,China)

机构地区：[1]广东电网有限责任公司清远供电局,广东清远511500

出　　处：《传感器与微系统》2023年第3期57-59,64,共4页Transducer and Microsystem Technologies

摘　　要：对基于球型熔接结构的马赫曾德(M-Z)光纤应变传感器进行了研究。实验中,采用放电熔接法制作了双球型和三球型结构的M-Z光纤干涉仪,然后对双球型结构和三球型结构的应变传感特性进行了比较研究。实验结果表明:双球型和三球型M-Z光纤应变传感器的灵敏度分别为-0.86,-0.93 pm/10^(-6)。因此,与双球型的M-Z光纤传感器相比,三球型结构灵敏度提高约7%。最后使用双球型M-Z传感器测量了钢结构变形,取得了较好效果。Mach-Zehnder(M-Z)fiber-optic strain sensor based on spherical splicing structure is studied.In the experiment, double-spherical and three-spherical stucture M-Z optical fiber interferometers are fabricated by the method of discharge fusion, and the strain sensing characteristics of the double-spherical and three-spherical structures are studied.The experimental results show that the sensitivity of the double-spherical M-Z optical fiber strain sensor is-0.86 pm/10^(-6),and that of the three-spherical M-Z optical fiber strain sensor is-0.93 pm/10^(-6).Therefore, compared with the double-sphere M-Z fiber sensor, the sensitivity of the three-sphere M-Z optical fiber sensor is improved about 7 %.Finally, the double-sphere M-Z optical fiber sensor is used to measure the deformation of steel structure, and it achieves good effect.

关 键 词：马赫曾德干涉仪 双球型结构 三球型结构 应变 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN91[自动化与计算机技术—控制科学与工程]