| 温度循环条件下某光电舱结雾现象分析 |
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| 引用本文： | 刘志,罗吉,任国华,卫丽君.温度循环条件下某光电舱结雾现象分析[J].航天器环境工程,2017,34(4):376-381. |
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| 作者姓名： | 刘志 罗吉 任国华 卫丽君 |
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| 作者单位： | 1. 北京华航无线电测量研究所, 北京 100013;2. 北京卫星环境工程研究所, 北京 100094 |
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| 摘 要： | 温度循环筛选是提高产品可靠性的重要手段之一,而光电试验舱内温度循环引发的呼吸作用可能是导致光电产品结雾的原因。文章详细分析了某光电舱温度循环时低温结雾的现象,通过理论计算和相关试验,表明器件内部水汽含量过大是此现象出现的主要原因,而密封结构的呼吸作用影响较小。根据以上结果,提出了相关解决措施。
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| 关 键 词： | 光电试验舱 密封结构 温度循环 水汽含量 呼吸作用 结雾 漏率 |
| 收稿时间： | 2016/12/25 0:00:00 |
| 修稿时间： | 2017/7/24 0:00:00 |
Analysis of fogging phenomenon in a sealed cabin under condition of temperature cycling |
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| LIU Zhi,LUO Ji,REN Guohu,WEI Lijun.Analysis of fogging phenomenon in a sealed cabin under condition of temperature cycling[J].Spacecraft Environment Engineering,2017,34(4):376-381. |
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| Authors: | LIU Zhi LUO Ji REN Guohu WEI Lijun |
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| Institution: | 1. Beijing Institute of Huahang Radio Measurement, Beijing 100013, China;2. Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | Temperature cycle screening is important to improve the product reliability, and the respiration is a main cause of fogging in optoelectronic products, thus the study of fog phenomenon in photoelectric products under the condition of temperature cycle is of significance for similar engineering problems. The low-temperature fogging during the temperature cycle of a sealed chamber is analyzed in detail in this paper. Theoretical calculation and the experiment show that the internal moisture content of the device is the main factor of fogging. The respiration of the chamber''s sealed structure has a relatively small effect. Technical improvements can be made based on this finding. |
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| Keywords: | photoelectric test tank sealed structure temperature cycle water content respiration fogging leakage rate |
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