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基于光机械集成的细分望远镜的微振分析研究

Kangmin Wen^1,2,3, Lingjie Wang^1,3, Xuefeng Zeng^1,3

¹Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.

Sensors (Basel, Switzerland)

|April 28, 2025

概括

一种新的动态光机械分析方法评估了轨道上的微振动如何影响细分望远镜成像. 这种方法确保波面误差保持在0.071λ以下,这对于在长时间曝光期间保持高成像质量至关重要.

科学领域:

光学和太空工程太空工程
机械工程机械工程
振动分析振动分析

背景情况:

在轨道上的微振动显著影响细分望远镜的成像质量.
在振动下,光学和机械系统之间的复杂相互作用很难建模.

研究的目的:

提出一个动态全链式光机械集成分析方法.
量化微振动对长曝光时间的细分望远镜成像质量的影响.

主要方法:

利用来自红外冰箱的微振信号进行测量.
在Patran/Nastran中使用有限元法进行过渡反应分析.
开发了一个Matlab接口,用于刚体位移计算和与Zemax实时数据交互.

主要成果:

在波长为1微米的4秒内,在1微米的波长下,达到0.071λ以下的波面误差根平均平方值 (RMS).
使用点差函数峰值比率评估成像质量.
观察到的最大峰值比值为0.4628 (X轴) 和0.6207 (Y轴),曝光时间为2秒.

结论:

开发的方法有效地分析了微振动对细分望远镜成像质量的影响.
为评估光学系统在微振环境中的性能提供了关键的参考,特别是在长时间暴露的情况下.

关键词:

微振动是一种微振动.光机械一体化分析分析细分望远镜的细分望远镜波面错误波面错误波面错误波面错误

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