卫星温度传感器的高可靠性封装  

The high reliable encapsulation of the satellite temperature sensor

作　　者：梁玉娇 钟国舜 娄小平[1] 孟凡勇[1] 祝连庆[1] LIANG Yu-jiao;ZHONG Guo-shun;LOU Xiao-ping;MENG Fan-yong;ZHU Lian-qing(Beijing Information Science and Technology University,Beijing 100016,China;School of Precision Instrument and Opto-Electronics Engineering,Tianjin 300072,China;North China Research Institute of Electro-Optics,Beijing 100015,China)

机构地区：[1]北京信息科技大学光电信息与仪器北京市工程研究中心,北京100016 [2]天津大学精密仪器与光电子工程学院,天津300072 [3]华北光电技术研究所,北京100015

出　　处：《激光与红外》2019年第8期996-1001,共6页Laser & Infrared

基　　金：教育部“长江学者与创新团队发展计划”项目(No.IRT_16R07);北京市属高等学校高层次人才引进与培养计划项目(No.IDHT20170510);高等学校学科创新引智计划(No.D17021)资助

摘　　要：针对卫星在轨温度实时监测对传感器可靠性的要求,提出了一种采用金属基底与陶瓷片结合的光纤光栅温度传感器封装结构和工艺。将光纤光栅弯曲为C字型并粘贴固定于陶瓷薄片上,以避免陶瓷材料热应变引起光栅产生轴向应变影响温度测量精度,陶瓷片用导热胶及硅胶固定于金属槽内,保障其牢固性并良好导热,同时进一步隔离被测部件机械变形及热变形对光栅的影响。地面实验采用恒温水浴槽进行模拟,对不同温度下传感器的反射波长与温度骤变时传感器的响应时间进行标定,并在轨测量了卫星运行时帆板的温度变化过程。结果表明,传感器在满足温度灵敏度、响应速度的同时,满足了卫星温度监测对传感器可靠性的要求。A metal base and ceramic pieces of optical fiber grating temperature sensor encapsulation structure and technology of the combination was proposed,which is used to resolve the requirements of the satellite on-orbit temperature real-time monitoring reliability.Optical fiber grating was bended to C word and fixed on the ceramic chip,in order to avoid ceramic material thermal strain causes a grating axial strain.Ceramic chip was attached to metal groove,which is adopted thermal conductive silicone.The robustness and good thermal conductivity is allowed,and the unit under test mechanical deformation and thermal deformation on the influence of the grating is isolated.Thermostatic water bath is used to simulate ground experiment.The relationship of reflection wavelength and temperature was demarcated.And the relationship of reflection wavelength and sensor’s response time with temperature variation was demarcated.Results show that it not only meet the temperature sensitivity and response speed,but meet the requirement of satellite temperature monitoring of the reliability of the sensor at the same time.

关 键 词：温度传感 响应时间 在轨测量 陶瓷片 光纤光栅 

分 类 号：TN253[电子电信—物理电子学]