摘要
针对卫星红外载荷高精度定标试验需求,研制高发射率水浴黑体腔。基于Gouffe理论设计黑体腔结构参数,对比两种腔体内表面处理方法,选择喷涂高发射率涂层的工艺;采取分体式圆锥嵌合结构解决传统构型锥尖加工困难、涂层堆积的问题;并通过理论计算、光线追迹仿真和实验测量评价黑体腔的有效发射率。结果表明,所研制的黑体腔有效发射率达0.997,满足高精度红外载荷定标试验需求。
A high-emissivity water-bath blackbody cavity was developed in view of the high-precision calibration test of satellite infrared loads.The structural parameters of blackbody cavity were designed based on Gouffe theory,and the process of spraying high emissivity coating was selected after comaring two surface treatment methods.The combination structure with two split circular cones was designed to solve the problems of machining difficulty and coating accumulation in conventional cone tips.The effective emissivity of the developed blackbody cavity was evaluated by theoretical calculation,ray tracing simulation and experimental measurement.The result shows that the effective emissivity of the developed blackbody cavity reaches up to0.997,which meets the requirement of high-precision calibration test of infrared loads.
作者
徐骏
费志禾
王惠芬
兰少飞
费涛
李逸
XU Jun;FEI Zhihe;WANG Huifen;LAN Shaofei;FEI Tao;LI Yi(Shanghai Institute of Spacecraft Equipment,Shanghai 200240,China;Shanghai Academy of Spaceflight Technology,Shanghai 201109,China)
出处
《航天器环境工程》
CSCD
北大核心
2023年第1期18-23,共6页
Spacecraft Environment Engineering
基金
科技部重点研发计划项目(编号:2022YFB3903104)。
关键词
黑体腔
有效发射率
结构优化设计
表面处理
blackbody cavity
effective emissivity
structural optimal design
surface treatment
