Killeen T L, Hays P B, Kennedy B C, Rees D
University of Michigan, Space Physics Research Laboratory, Ann Arbor, Michigan 48109, USA.
Appl Opt. 1982 Nov 1;21(21):3903-12. doi: 10.1364/AO.21.003903.
This is the second of two papers which describe the development and performance of the Fabry-Perot etalon flown on the Dynamics Explorer spacecraft. The Dynamics Explorer instrument is designed to measure winds in the upper atmosphere by observing the Doppler shift of various emission features. The etalon remains stable to <5-m/sec equivalent wind over one orbit and <100 m/sec over several months in orbit. This paper discusses the thermal stability considerations for the highly stable etalon including the passive thermal control used in flight and presents a new kinematic etalon mount design which eliminates undesirable thermomechanical coupling between the etalon and its mount. A series of thermal vacuum tests has identified the major causes of thermally induced drift in the etalon transmission. The performance of the flight etalon is discussed.
本文是两篇论文中的第二篇，描述了搭载在“动力学探测者”号航天器上的法布里-珀罗标准具的研制与性能。“动力学探测者”号仪器旨在通过观测各种发射特征的多普勒频移来测量高层大气中的风。该标准具在一个轨道周期内等效风速保持稳定在<5米/秒，在轨道上运行数月时等效风速保持稳定在<100米/秒。本文讨论了这种高稳定性标准具的热稳定性考量因素，包括飞行中使用的被动热控措施，并提出了一种新的运动学标准具安装设计，该设计消除了标准具与其安装结构之间不良的热机械耦合。一系列热真空测试确定了标准具透射率中热致漂移的主要原因。文中还讨论了飞行标准具的性能。
