Effectiveness of low-cost thermal vacuum tests of a micro-satellite☆
Effectiveness of low-cost thermal vacuum tests of a micro-satellite☆
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微小卫星低成本热真空试验的有效性☆
DOI：
10.1016/j.actaastro.2006.03.003
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
E. Garcia
中科院分区：
文献类型：
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作者：
J. S. Almeida;M. Santos;D. L. Panissi;E. Garcia
本文介绍了位于圣若泽多斯坎普斯的国家空间研究所 LIT 集成和测试实验室从 2003 年 2 月 6 日至 12 日举行的 SATEC 原型飞行航天器热真空测试活动中获得的经验。 Satélite Tecnológico (SATEC) 是一颗巴西制造的微型卫星，作为有效载荷 计划于2003年发射的巴西运载火箭VLS-1.3。1考虑到这种微型卫星体积小、成本相对较低且责任有限，环境试验应在短时间内进行，要求尽可能低的成本，同时保证可靠、全面和代表性。对于热真空测试，基本上使用中等尺寸的空间模拟室，并辅以热辐射热板技术来模拟轨道热调节的热量输入。本文详细介绍了应用于巴西微型卫星验收测试的红外测试技术，包括所采用的测试装置、热真空室的工作模式和性能、辐射热板的精确热调节和控制以及航天器温度方面获得的结果。
This paper presents the experience gained at the Integration and Tests Laboratory—LIT, National Institute for Space Research—INPE, in São José dos Campos, SP, from the thermal vacuum tests campaign of the SATEC protoflight spacecraft, held from February 6th to 12th, 2003. The Satélite Tecnológico (SATEC) is a micro-satellite made in Brazil, as a payload for the Brazilian launching vehicle VLS-1.3, scheduled to be launched in the year of 2003.1Considering the small size, relatively small cost and limited responsibility of this particular micro-satellite, the environmental tests should be performed in a short period of time requiring as low cost as possible, albeit being reliable, comprehensive and representative. For the thermal vacuum tests basically it was used a medium-size space simulation chamber, complemented by the use of the technique of thermal radiant heat plates for simulation of the heat input from the orbital thermal conditioning. This paper details the infrared testing technique applied to the acceptance tests of the Brazilian micro-satellite, including the adopted test setup, the thermal vacuum chamber mode-of-operation and performance, the precise thermal conditioning and controlling of the radiative heat plates, and the results obtained in terms of spacecraft temperatures.