光学精密工程2017，Vol.25Issue(6)：1464-1471,8.DOI:10.3788/OPE.20172506.1464
星敏感器遮光罩出口杂光的辐照度测试
Testing of stray light irradiance at exit of lens hood for star sensor
摘要
Abstract
Facing the urgent requirement of stray light suppression for the star sensor in orbit,stray light irradiance at the exit of the lens hood of a star sensor was determined quantitatively.Based on micro fiber optic spectrometer,two-dimensional high-precision displacement table and solar simulator,a stray light test platform which scans point-by-point was established.With the effective integration of radiation measurement software and motion control software,system integration test software was developed.Therefore,real-time quantitative measurement on irradiance distribution of the stray light at the exit of the lens hood was completed.Regarding of the measured values at the exit of the lens hood under different incident angles of irradiance,the irradiance distribution of the stray light at the exit of the lens hood was calculated according to the integration time set,dark background data and calibration data of spectrograph applied in the measurement.The data processing result shows:the irradiance of the stray light at the exit of the lens hood is about 102 W/cm2 and it is distributed unevenly.Based on the error analysis theory,a measurement error model is built with a calculated error of 4.87%,which shows the reasonableness and feasibility of the measurement scheme.The measurement data can provide important technical support for design,demonstration,testing,shaping and application of the star sensor.关键词
星敏感器/遮光罩/杂散光抑制/照度分布/数据处理/误差分析Key words
star sensor/lens hood/stray light suppression/irradiance distribution/data processing/error analysis分类
通用工业技术引用本文复制引用
陈赟,郑循江,刘宗明,杜宣..星敏感器遮光罩出口杂光的辐照度测试[J].光学精密工程,2017,25(6):1464-1471,8.基金项目
上海市人才计划资助项目 （）
