碳膜原子氧传感器研制及地面性能测试  

Development and ground-based performance test of carbon film atomic oxygen sensor

作　　者：把得东[1] 刘凤琼[2] 王鹢[1] 卢子伟[2] 郭兴[1] 冯展祖[1] 柳青[1] 田海[1] 贺援际 赵伟利 陈桐 BA Dedong;LIU Fengqiong;WANG Yi;LU Ziwei;GUO Xing;FENG Zhanzu;LIU Qing;TIAN Hai;HE Yuanji;ZHAO Weili;CHEN Tong(Lanzhou Institute of Physics;Institute of Modern Physics,Chinese Academy of Sciences:Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所 [2]中国科学院兰州近代物理研究所,兰州730000

出　　处：《航天器环境工程》2024年第1期95-100,共6页Spacecraft Environment Engineering

基　　金：国家国防科工局重点实验室基金项目(编号:HTKJ2021KL510004)。

摘　　要：研制低地球轨道(LEO)原子氧(AO)探测器并且开展AO环境在轨监测对于LEO航天器设计及防护具有重要意义。基于电阻分析法的碳膜AO传感器因工作时间较长、响应线性度较好且无污染,在国内外得到较多应用。为优化AO在轨监测手段,设计了一种矩形碳膜AO传感器:采用阴极电弧放电工艺制备了厚约2.5μm的AO敏感碳膜;利用AO地面模拟设备,测试了传感器的性能,并表征了碳膜在AO作用前后的形貌。结果显示,传感器碳膜的初始电阻与AO试验过程中的实时测量电阻的比值R0/R与AO积分通量F具有较好的线性关系。根据测试结果推导,该传感器能探测的最大AO积分通量约为2.29×10^(21)atom·cm^(-2)。To develop low Earth orbit(LEO)atomic oxygen(AO)sensor and conduct on-orbit monitoring of the AO environment is of significance for the design and protection of LEO spacecraft.Carbon film AO sensors based on the method of resistance analysis have been widely used at home and abroad due to their long working hours,good linearity,and no contamination.In this article,to achieve better AO on-orbit monitoring,a rectangular carbon film AO sensor was designed.An approximately 2.5μm thick AO-sensitive carbon film was prepared by cathode arc discharge.The performance of the sensor was tested in a ground-based AO simulator.The morphologies of the carbon film before and after AO exposure were characterized.The testing results show that the ratio R0/R referring the initial resistance of the sensor film against its in-situ measured resistance during AO exposure possesses a good linear relationship with the AO fluence F.According to the results,it can be inferred that the maximum AO detectable fluence for the sensor is approximately 2.29×10^(21)atom·cm^(-2).

关 键 词：原子氧 碳膜传感器 电阻测量 剥蚀率 

分 类 号：V423.6[航空宇航科学与技术—飞行器设计] V416.5