布里渊温度和压力传感器增敏设计  

Sensitization Design of Brillouin Temperature and Pressure Sensor

作　　者：李永倩[1,2,3] 王少康 华子明 温芳芳 范海军 LI Yongqian;WANG Shaokang;HUA Ziming;WEN Fangfang;FAN Haijun(Dept.of Electronic and Communication Engineering,North China Electric Power University,Baoding 071003,CHN;Hebei Key Laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding 071003,CHN;Baoding Key Laboratory of Optical Fiber Sensing and Optical Communication Technology,North China Electric Power University,Baoding 071003,CHN)

机构地区：[1]华北电力大学电子与通信工程系,河北保定071003 [2]华北电力大学河北省电力物联网技术重点实验室,河北保定071003 [3]华北电力大学保定市光纤传感与光通信技术重点实验室,河北保定071003

出　　处：《半导体光电》2021年第5期624-629,共6页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(61775057);河北省自然科学基金项目(F2019502112);中央高校基本科研业务费专项基金项目(2019MS086)。

摘　　要：设计了一种基于分布式传感技术的薄壁圆筒型液体温度和压力传感器。选取具有耐腐蚀、弹性性能好以及热膨胀系数大的不锈钢316L和铍青铜C17200分别对传感器进行封装。利用有限元仿真软件ANSYS Workbench对封装的传感器压力和温度特性进行仿真分析,得到器件的径向应变量,分析其布里渊频移随压力和温度的变化关系。仿真实验表明,使用铍青铜C17200封装的传感器压力灵敏度和温度灵敏度更高,在0~12MPa、-5~40℃范围内压力灵敏度达11.1MHz/MPa,温度灵敏度达2.56MHz/℃,相较于普通单模光纤分别提升7.4倍和1.7倍。A thin-walled cylindrical liquid temperature and pressure sensor based on distributed sensing technology was designed.The sensors are packaged with stainless steel 316 L and beryllium bronze C17200,which have corrosion resistance,good elasticity,and a large thermal expansion coefficient.The finite element simulation software ANSYS Workbench was used to simulate and analyze the pressure and temperature characteristics of the packaged sensor,and the radial strain of the device was obtained,and the relationship between the Brillouin frequency shift and the pressure and temperature was analyzed.The simulation experiment shows that the pressure sensitivity and temperature sensitivity of the sensor using the beryllium bronze C17200 package is higher.The pressure sensitivity can reach 11.1 MHz/MPa and the temperature sensitivity can reach 2.56 MHz/℃in the range of 0~12 MPa and-5~40℃.Compared with ordinary single-mode fiber,it is increased by 7.4 times and 1.7 times respectively.

关 键 词：布里渊传感器 布里渊光时域分析 温度和压力测量 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]