新一代星敏感器遮光罩——碳纳米管遮光罩技术研究

发布时间：2019-04-18 11:02

【摘要】：针对目前星敏感器遮光罩普遍存在的尺寸和质量较大、杂光消除能力受限等问题,从提高吸光涂层吸光率入手,提出碳纳米管遮光罩新概念,研制一套钛合金基底生长碳纳米管涂层的新技术,使得涂层吸光率达到99%以上,并成功制作出可等效替代现有飞行产品遮光罩的碳纳米管遮光罩.通过真空原子氧、紫外辐照、高能粒子辐照、热真空、力学环境等各项空间环境实验,证明其空间环境适用性.与现有星敏感器遮光罩产品的杂光比对试验结果表明,使用碳纳米管遮光罩的星敏感器杂光灰度降低了56%,显示出杂光消除性能的优势.本文创新成果突破了碳纳米管技术在杂光消除领域实际应用的瓶颈技术,对促进星敏感器技术的提高具有重要的工程价值.
[Abstract]:Aiming at the problems of large size and quality of star sensor mask, limited ability of eliminating stray light and so on, a new concept of carbon nanotube mask is put forward in order to improve the absorptivity of light absorbing coating, and a new concept of carbon nanotube mask is put forward in this paper. A new technique for the growth of carbon nanotubes (CNTs) coating on titanium alloy substrates was developed. The absorptivity of the coatings was over 99%, and the carbon nanotubes (CNTs) masking was successfully fabricated to replace the existing flying products' mask. The applicability of vacuum atomic oxygen, ultraviolet irradiation, high energy particle irradiation, thermal vacuum, mechanical environment and other space environment experiments were proved. Compared with the stray light of the existing star sensor mask, the results show that the grayscale of the stray light of the star sensor using the carbon nanotube mask is reduced by 56%, which shows the advantage of the stray light elimination performance of the star sensor. The innovation results of this paper break through the bottleneck technology of the application of carbon nanotubes in the field of stray light elimination, and have important engineering value to promote the improvement of star sensor technology.
【作者单位】：北京控制工程研究所;清华大学;
【基金】：航天科技集团公司工艺重大专项资助项目(ZDGY2013-28)
【分类号】：V448.2

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