航天器表面多层分子污染光学效应分析方法

王曙光; 王先荣; 王鷁; 郭兴; 庄建宏

doi:10.3969/j.issn.1006-7086.2013.01.003

航天器表面多层分子污染光学效应分析方法

兰州空间技术物理研究所空间环境材料行为及评价技术重点实验室, 甘肃兰州 730000

详细信息

作者简介:
王曙光(1987-),男,硕士研究生,江苏连云港人,主要研究方向为空间环境效应及控制。

中图分类号: V520.6
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出版历程
- 收稿日期: 2012-10-23

OPTICAL EFFECTS ANALYSIS METHODS FOR MULTILAYER MOLECULAR FILMS CONDENSED ON SPACECRAFT SURFACES

Science and Technology on Material perforrnance Evaluating in Space Environment Laboratory, Lanzhou Institute of Physics,Lanzhou Gansu 730000,China

摘要

摘要: 空间分子污染凝结在航天器敏感表面会造成相关设备性能下降甚至失效。通过材料真空出气动力学理论,分析了分子污染在空间环境下出气、输运以及吸附过程,推导了分子污染层的形成过程并以此建立分子污染多层沉积膜物理模型。利用多层污染模型预测被污染光学表面透过率的影响因素预估,并测量两种常见的星用非金属材料不同温度下、不同沉积顺序的出气污染膜的透过率。研究结果表明样品受热温度越高,沉积的污染膜对光学表面的透过率衰减越大,且多层污染膜沉积的顺序对光学性能的影响很大,验证了模型预测结果的正确性。
- 分子污染 ;
- 光学效应 ;
- 多层膜 ;
- 透过率 ;
- 分析方法
Abstract: In space environment,molecular contamination condensed on sensitive surface is an important influence to the equipment characteristic.Based on dynamics theory of materials outgassing,this paper studied the processes of outgassing,transferring and adsorption experienced by outgassing molecules.Establish a model of multilayered system by analyzing the process of molecular contamination films.And make prediction to the influencing factor of transmittance of optical surface which has been contaminated.By measuring the transmittance of molecular contamination films produced from two nonmetal materials in different temperature and different sequence,the results indicate that the transmittance attenuation will increase along with the heating temperature.And the deposition sequence is an important influence to the optical performance.These conclusions verify the correctness of the model of multilayered system model.
- Molecular contamination /
- Optical effect /
- Multilayer films /
- Transmittance /
- Analysis methods1