中国光学（中英文）2025，Vol.18Issue(4)：811-818,8.DOI:10.37188/CO.2024-0216
日球成像仪太阳杂光抑制能力测试方法研究
Test method of solar stray light suppression ability of heliospheric imager
摘要
Abstract
In order to quantitatively assess the solar stray light suppression capability of the heliospheric im-ager,a testing approach and experimental validation were investigated.In this paper,we proposed a method to test the solar stray light suppression capability of the heliospheric imager under laboratory circumstances by conducting segmented tests of the front-end baffle and the camera.This approach circumvented the issue that the structural scattering caused by the test under vacuum conditions would be overly large and influence the accuracy of the test results.The proposed method was then employed to assess the effectiveness of a he-liospheric imager in suppressing solar stray light under laboratory conditions.The experimental results indic-ate that the PST of the front-end diaphragm of the heliosphere imager is 1.4×10-8 at WACH1 and 4.3×10-9 at WACH2.The error analysis of the test results reveal that the random error is 21.6％,and the PST resulting from the sum of system errors is 1.1×10-8 at WACH1 and 4.2×10-9 at WACH2.The test accuracy meets the requirements,demonstrating the feasibility and accuracy of the test method.The study presented in this pa-per offers a novel means to test the solar stray light suppression capability of heliospheric imager.关键词
日球成像仪/杂散光测试/误差分析Key words
heliospheric imager/stray light test/error analysis分类
通用工业技术引用本文复制引用
高天宇,张天一,孟庆宇,咸竞天,罗敬,王维..日球成像仪太阳杂光抑制能力测试方法研究[J].中国光学（中英文）,2025,18(4):811-818,8.基金项目
国家重点研发计划(No.2022YFB3806305,No.2021YFC2802100) （No.2022YFB3806305,No.2021YFC2802100）
民用航天十四五预研项目(No.D050101) （No.D050101）
国家自然科学基金(No.12473085,No.12003033) （No.12473085,No.12003033）
中国科学院青年创新促进会(No.2023225) （No.2023225）
智元实验室(No.ZYL2024016)Supported by National Key Research and Development Program of China(No.2022YFB3806305,No.2021YFC2802100) （No.ZYL2024016）
Civil Aerospace Pre-research project for the 14th Five-Year Plan(No.D050101) （No.D050101）
National Natural Science Foundation of China(No.12473085,No.12003033) （No.12473085,No.12003033）
Youth Innovation Promotion Associ-ation of the Chinese Academy of Sciences(No.2023225) （No.2023225）
Zhiyuan Laboratory(No.ZYL2024016) （No.ZYL2024016）
