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中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
[ "王克军(1982-),男,山东乐陵人,博士,研究员,2006年、2008年于吉林大学分别获得学士、硕士学位,2016年于中国科学院大学获得工学博士学位。现主要从事空间遥感器光机结构设计。E-mail: wangkejun1@163.com" ]
收稿日期:2021-01-06,
修回日期:2021-02-26,
纸质出版日期:2022-01-25
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王克军,董吉洪,朱时雨等.天问一号高分相机主光机在线装调技术研究[J].光学精密工程,2022,30(02):199-209.
WANG Kejun,DONG Jihong,ZHU Shiyu,et al.Research on on-line alignment technology with main optical-mechanical structure of Tianwen-1 high-resolution camera[J].Optics and Precision Engineering,2022,30(02):199-209.
王克军,董吉洪,朱时雨等.天问一号高分相机主光机在线装调技术研究[J].光学精密工程,2022,30(02):199-209. DOI: 10.37188/OPE.20223002.0199.
WANG Kejun,DONG Jihong,ZHU Shiyu,et al.Research on on-line alignment technology with main optical-mechanical structure of Tianwen-1 high-resolution camera[J].Optics and Precision Engineering,2022,30(02):199-209. DOI: 10.37188/OPE.20223002.0199.
天问一号高分相机采用了离轴三反光学系统,指标精度高,结构复杂,研制周期短。鉴于上述要求,对离轴三反光学系统的计算机辅助装调技术进行了深入研究,并应用到天问一号高分相机主光机结构的装调过程中,利用计算机辅助装调技术使天问一号高分相机主光机结构的装调指标迅速收敛。各个视场的平均系统波像差优于
λ
/14,在特征频率57.1 lp/mm的平均传递函数0.381。此外,对主光机结构开展了一系列的环境模拟试验,包括力学应力筛选试验、高低温循环试验和失重环境适应性试验。在经历试验后,各技术指标均变化很小,基本满足总体设计指标要求。天问一号成功发射,传回了清晰的火星照片,进一步验证了计算机辅助装调技术的装调效果。
The Tianwen-1 high-resolution camera adopts an off-axis three-mirror optical system, with a high precision index, complex structure, and short development cycle. In view of the above requirements, the computer-aided alignment technology of the off-axis three-mirror optical system is thoroughly investigated and applied to the alignment process of the main optical-mechanical structure of the Tianwen-1 high-resolution camera. The application of this technology causes the alignment index of the main optical-mechanical structure of the camera to converge rapidly. The average system RMS is better than
λ
/14 for each field of view and the average transfer function is 0.381 at the characteristic frequency of 57.1 lp/mm. A series of environmental simulation tests, including a mechanical test, temperature cycling test, and weightlessness adaptability test, was conducted on the main optical-mechanical structure. Following the experiments, all the technical indexes changed only slightly, thus meeting the requirements of the overall design indexes. Finally, Tianwen-1 was successfully launched, and clear images of Mars were sent, thus proving the effectiveness of the computer-aided alignment technology.
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