JWST轻量级镜像TRL-6结果

H. P. Stahl, Nasa Msfc
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引用次数: 14

摘要

用于主镜段组件(PMSA)的反射技术是一个组件系统:反射涂层;抛光光学表面;镜子衬底;致动器、机构和屈曲器;反应结构。PMSA的功能目的是在发射、部署和对准中幸存下来,形成一个收集面积为25平方米、直径为6.5米的主镜,在温度< 50K时波前误差为131 nm,并为预期的热环境提供稳定的光学性能。在1996年JWST成立之初,这样的能力处于技术准备水平(TRL) 3。一项非常成功的技术开发计划启动,包括亚尺度铍镜验证(SBMD)和先进镜系统验证(AMSD)项目。这些项目以及飞行计划活动已经为JWST到TRL-6提供了成熟的镜像技术。一个直接可追溯的原型(在某些情况下,还有飞行硬件本身)已经在相关环境中建造、测试和运行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
JWST Lightweight Mirror TRL-6 Results
Mirror technology for a Primary Mirror Segment Assembly (PMSA) is a system of components: reflective coating; polished optical surface; mirror substrate; actuators, mechanisms and flexures; and reaction structure. The functional purpose of a PMSA is to survive launch, deploy and align itself to form a 25 square meter collecting area 6.5 meter diameter primary mirror with a 131 nm rms wavefront error at temperatures < 50K and provide stable optical performance for the anticipated thermal environment. At the inception of JWST in 1996, such a capability was at a Technology Readiness Level (TRL) of 3. A highly successful technology development program was initiated including the Sub-scale Beryllium Mirror Demonstrator (SBMD) and Advanced Mirror System Demonstrator (AMSD) projects. These projects along with flight program activities have matured mirror technology for JWST to TRL-6. A directly traceable prototype (and in some cases the flight hardware itself) has been built, tested and operated in a relevant environment.
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