光学 精密工程, 2018, 26 (7): 1633, 网络出版: 2018-10-02
光电跟踪系统Φ1 000 mm主镜的装调
Alignment of Φ1 000 mm primary mirror for photoelectric tracking system
光电跟踪系统 主镜支承结构 大口径 装调技术 photoelectric tracking system primary mirror bearing structure large aperture alignment technology
摘要
1 000 mm口径主镜的光机装调质量直接影响望远镜光学系统的成像效果。为了改善大口径光电跟踪系统的成像质量, 本文对主镜的装调技术进行了研究。首先, 对影响主镜面形精度的误差进行分配; 其次, 结合具体的主镜支撑结构的形式, 采用典型装调方法对800 mm口径主镜进行详细的装调研究, 实时测得主镜的面形精度; 最后, 综合分析产生装调误差的来源, 提出了一种加工、检测、装调一体化的高精度装调方法。该方法使得1 000 mm主镜在装调后的面形精度波像差RMS值达到了λ/40, 在提高装调质量的情况下显著提高了装调效率。
Abstract
The quality of optical machine installation in a 1 000 mm aperture reflector directly influences the imaging characteristics of the optical system of a telescope. In order to improve the imaging quality of a large-aperture photoelectric tracking system, the installation and adjustment technology of the reflector was investigated. First, the errors that affect the precision of the principal mirror were distributed. Second, a typical method was adopted to perform a detailed installation and adjustment investigation of the principal mirror with an aperture of 800 mm, and the reflection mirror shape accuracy was measured in real-time, in combination with the specific form of the reflector support structure. Finally, this paper included a comprehensive analysis of the source of installation and adjustment errors and proposed a high-precision method that integrates processing, testing, and installation. The method adopted resulted in an RMS value of λ/40 for the modified profile precision waveform aberration after installation, and significantly improved the efficiency and quality of the installation and adjustment.
杨立保, 李艳红, 王晶, 孙宁, 谢京江, 史国权, 张帆. 光电跟踪系统Φ1 000 mm主镜的装调[J]. 光学 精密工程, 2018, 26(7): 1633. YANG Li-bao, LI Yan-hong, WANG Jing, SUN Ning, XIE Jing-jiang, SHI Guo-quan, ZHANG Fan. Alignment of Φ1 000 mm primary mirror for photoelectric tracking system[J]. Optics and Precision Engineering, 2018, 26(7): 1633.