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| 大型三反离轴相机热控设计及在轨飞行验证 |
| Verification of thermal design and in-orbit flight for large off-axis triple-mirror anastigmatic camera |
| 投稿时间：2014-06-27 |
| DOI：10.3969/j.issn.1005-5630.2015.02.006 |
| 中文关键词: 热设计 在轨 验证 三反离轴相机 |
| 英文关键词:thermal design in-orbit verification off-axis three mirror anastigmatic camera |
| 基金项目:国家重大科技专项工程 |
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| 中文摘要: |
| 遥感相机在轨运行过程中要面临复杂的空间热环境,为了保证相机的成像质量,必须对其进行有效的热设计.介绍了遥感相机热控设计的主要理论,分析了某大型三反离轴相机的特殊性对热设计的影响及对策.总结了相机的在轨温度情况,并采用热模型仿真的方法获取了无温度遥测位置的温度结果.在轨分析结果表明,相机关键部位的温度均在20 ℃±2 ℃的温度指标范围内,证明了相机热控设计的正确性. |
| 英文摘要: |
| Remote camera is confronted with complex space temperature environment during flying. The effective thermal design is performed for ensuring imaging qualities. Primary theories of thermal design for remote camera are introduced, and the influence and countermeasure on characteristic of the large off-axis triple-mirror anastigmatic camera for thermal design are analyzed. Finally in-orbit temperature is summarized. Based on the simulation method of thermal model, the temperature results of position without telemetry temperature are obtained. In-orbit analysis result shows that all temperature of primary parts for camera is in the range of 20 ℃±2 ℃. The validity of thermal design for camera is proved. |
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