Thermal analysis and design of the aerial camera鈥檚 primary optical system components

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• 作者：Liu Wei-yi^a ; ^b ; ^{2219101@163.com} ; Ding Ya-lin^a ; Wu Qing-Wen^a ; Jia Ji-Qiang^a ; Guo Liang^a ; ^b ; Wang Ling-Hua^a ; ^b
• 关键词：Thermal analysis ; Thermal design ; Aerial camera ; Thermal control strategies
• 刊名：Applied Thermal Engineering
• 出版年：2012
• 期刊代码：8_13594311
• 类别：ce
• 出版时间：May, 2012
• 卷：38
• 期：Complete
• 页码：40-47
• 文件大小：1544 K

摘要

To meet the thermal index requirements of an aerial camera with long focal length, three kinds of heat transfer modes including conduction, convection and radiation were analyzed. The measures were designed for the camera鈥檚 primary optical system components based on this analysis. The design principles and implementing regulations were introduced. The camera鈥檚 finite element thermal model has been established. The results of model鈥檚 temperature distribution have been obtained after the calculation according to the boundary conditions. A heat balance test has got done for the camera. The results show that both axial temperature difference and radial temperature difference are less than 5聽掳C, which meets the camera鈥檚 thermal control indexes.