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首页> 外文会议>Conference on Cryogenic Optical Systems and Instruments X; Aug 6, 2003; San Diego, California, USA >Lessons learned from the design, fabrication, integration, and test of a cryogenic, IR spectrometer for ground-based astronomy
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Lessons learned from the design, fabrication, integration, and test of a cryogenic, IR spectrometer for ground-based astronomy

机译：从用于地面天文学的低温红外光谱仪的设计，制造，集成和测试中学到的经验教训

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摘要

The Infrared Multi-Object Spectrograph (IRMOS) is an instrument for the Kitt Peak National Observatory (KPNO) Mayall (3.8m) and 2.1m telescopes. IRMOS is a low- to mid-resolving power (R = λ/Δλ = 300―3000), near-IR (0.8―2.5 μm) spectrometer that produces simultaneous spectra of ～100 objects in its field of view using a real-time programmable, multi-aperture slit mask. The instrument operating temperature is ～85K to allow for infrared (IR) detector operation and for improved K-band performance. The optical bench and mirrors are machined from aluminum 6061-T651 and then further treated, theoretically allowing for less ambient to cryo change in the optical alignment. IRMOS utilizes four powered mirrors, three flat mirrors, two rotary mechanisms, one linear mechanism, a commercial micro electro-mechanical systems (MEMS) micro-mirror array device and a 1024x1024, HgCdTe detector. The final design of the instrument and all of its components evolved through several iterations and a series of requirement/feasibility trades. During the design process, we found the heritage of past instruments with similar operating conditions to be invaluable in understanding our challenge, maximizing performance, and minimizing cost. The decision-making process of our design, as well as some of the major technical achievements, are described from a systems point of view in order to provide a list of "lessons learned" for future cryogenic instrument design and construction.
机译：红外多目标光谱仪（IRMOS）是基特峰国家天文台（KPNO）Mayall（3.8m）和2.1m望远镜的仪器。 IRMOS是中低分辨力（R =λ/Δλ= 300〜3000），近红外（0.8〜2.5μm）光谱仪，可实时生成其视野中约100个物体的同时光谱可编程，多孔径狭缝掩模。仪器的工作温度为〜85K，以允许红外（IR）检测器操作并改善K波段性能。光学平台和反射镜由铝6061-T651加工而成，然后进行进一步处理，从理论上讲，允许较少的环境来进行光学对准的低温变化。 IRMOS利用四个电动反射镜，三个平面镜，两个旋转机构，一个线性机构，一个商用微机电系统（MEMS）微镜阵列设备和一个1024x1024 HgCdTe检测器。仪器及其所有组件的最终设计是经过多次迭代和一系列需求/可行性交易而演变而来的。在设计过程中，我们发现具有类似操作条件的过去仪器的传承对于理解我们的挑战，最大化性能和最小化成本具有无价的价值。从系统的角度描述了我们设计的决策过程以及一些主要的技术成就，以便为将来的低温仪器设计和构造提供“经验教训”列表。

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