束偏转系统快速响应光纤温度传感器研究  

Research on Fast Response Fiber Optic Temperature Sensor of Beam Deflection System

作　　者：朱梦娇 许永建 国树东 于玲 陈晓伟 王纪强 赵林[1] ZHU Mengjiao;XU Yongjian;GUO Shudong;YU Ling;CHEN Xiaowei;WANG Jiqiang;ZHAO Lin(Laser Institute,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250104,China;Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Taian Special Equipment Inspection Institute,Tai'an 271001,China)

机构地区：[1]齐鲁工业大学(山东省科学院)激光研究所,山东济南250104 [2]中国科学院合肥物质科学研究院等离子体物理研究所,安徽合肥230031 [3]泰安市特种设备检验研究院,山东泰安271001

出　　处：《传感器世界》2024年第8期23-28,共6页Sensor World

基　　金：国家重点研发计划(No.2022YFB3207602);山东省自然基金重点项目(No.ZR2020KC012);2019年高等学校青创人才引育计划(光电检测创新团队);济南市“新高校20条”项目(No.2021GXRC037)。

摘　　要：针对中性束注入器束偏转系统快速测温需求,研制了一种快速响应光纤布拉格光栅(Fiber Bragg Grating,FBG)温度传感器。基于热响应原理分析了传感器主要设计参数对响应时间的影响,采用有限元分析软件对不同内径、不同材料的传感器响应时间进行了仿真模拟,封装管材料的储热能力越小,管内径越小,传感器的响应时间越快。封装制作了传感器实物,并通过实验验证了传感器的温度特性和动态响应性能。结果表明,在-25~250℃的温度测试中,FBG的反射波长仍保持着优异的线性度,在0.996以上,传感器测量精度可达到0.6%F.S,迟滞误差1.5%F.S。在瞬态温度变化中,传感器的响应时间为0.85 s,动态性能优于封装的热电偶传感器,更适用于束偏转系统高稳定快速温度监测。A fast response fiber Bragg grating temperature sensor was developed for the rapid temperature measurement needs of the neutral beam injector beam deflection system.Based on the thermal response principle to analyze the impact of the sensor's main design parameters on the response time,using finite element analysis software to simulate the response time of the sensor with different inner diameters and materials,the smaller the heat storage capacity of the encapsulated tube material,the smaller the inner diameter of the tube,the faster the response time of the sensor.The encapsulation fabricated the sensor in kind,and the temperature characteristics and dynamic response performance of the sensor were experimentally verified.The results show that the reflected wavelength of the FBG still maintains excellent linearity in temperature tests from-25~250°C.Above 0.996,the measurement accuracy of the sensor can reach 0.6%F.S,with a hysteresis error of 1.5%F.S.In the transient temperature change,the response time of the sensor is 0.85 s,which has a dynamic performance superior to that of the encapsulated thermocouple sensors,and is more suitable for the beam deflection system for high Stable and fast temperature monitoring.

关 键 词：光纤光栅 响应时间 高温 温度传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]