法拉第反射镜温度传感特性研究  

Research on temperature sensing characteristics of Faraday mirror

作　　者：吴健华 张晓锋[1] 陈亮[1] 彭程 吴本祥 WU Jianhua;ZHANG Xiaofeng;CHEN Liang;PENG Cheng;WU Benxiang(College of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China;No 92853 Troops,Huludao 125106,China;College of Information and Communication,National University of Defense Technology,Wuhan 430033,China)

机构地区：[1]海军工程大学电气工程学院,湖北武汉430033 [2]92853部队,辽宁葫芦岛125106 [3]国防科技大学信息通信学院,湖北武汉430033

出　　处：《传感器与微系统》2023年第12期32-35,共4页Transducer and Microsystem Technologies

摘　　要：通过剩磁温度系数建立了法拉第旋转角与工作温度之间的对应关系,推导了温度变化时法拉第反射镜的传输矩阵;建模分析了基于干涉光学原理测量法拉第旋转角系统,并采用相关解调算法确定系统输出与温度间的对应关系。最后,搭建了实验系统,采用锁相放大器进行数据处理,通过数据拟合确定法拉第反射镜的剩磁温度系数为0.009452,与所测量数据进行对比,数据相关系数为0.9939,理论值与实测值具有较好一致性。The relationship between Faraday rotation angle and the working temperature is established by remanence temperature coefficient,and the transmission matrix of Faraday mirror with temperature changes is deduced.The Faraday rotation angle measurement system based on the principle of interference optics is modeled and analyzed,and the correlation demodulation algorithm is used to determine the relationship between the system output and temperature.Finally,the experimental system is constructed,and the phase-locked amplifier is applied for data processing.The remanence temperature coefficient of the Faraday mirror is 0.009452 by data fitting.Compared with the measured data,the correlated coefficient of data is 0.9939,and the theoretical value is in good agreement with the measured value.

关 键 词：温度传感 法拉第反射镜 剩磁温度系数 相关解调 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] S951.4[自动化与计算机技术—控制科学与工程]