Design of the Active Cooling Focal Plane Component for the Space Astronomy Telescope
文献类型：会议论文
| 作者 | Liangjie, Feng; Chenjie, Wang; Gangyi, Zou
|
| 出版日期 | 2021 |
| 会议日期 | 2021-06-14 |
| 会议地点 | Chengdu, China |
| 关键词 | space astronomy camera active cooling focal plane coplanar splicing thermo-optical test |
| 卷号 | 12075 |
| DOI | 10.1117/12.2605265 |
| 英文摘要 | The detecting CCD of a space astronomical telescope needs to be cooled to -75 to suppress the dark current for faint target detecting in the universe, and coplanarly spliced with two fine guidance sensor(FGS) which needs to be cooled to -40 for the stability as long time observation. Two one stage thermos-electric cooler(TEC) was connected to actively cool the detector to ensure the working temperature and the temperature control accuracy, the Structural of the actively cooling detector assembly and the focal plane component were presented and the power dissipation of the TEC was calculated. In order to ensure the coplanarity of the focal plane component on the working temperature, the finite element method was used to analyze the thermal distribution on the detector surface and the thermal deformation of the supporting structure of the FGS with different materials. The analysis results showed that the lowest cooling temperature of the detecting CCD is -75, the temperature control accuracy was better than 1, and the coplanar error of the detection CCD and the fine guidance sensors did not exceed 20μm. The thermal equilibrium test showed that the lowest cooling temperature was -74.9~-75.1 for the detecting CCD, The temperature control accuracy was 0.1. The thermal optical test showed that the defocus of the FGS was 4μm after focusing, which verified the thermal and structural design performance of the focal plane component. © 2021 SPIE |
| 产权排序 | 1 |
| 会议录 | 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Intelligent Sensing Technologies and Applications
 |
| 会议录出版者 | SPIE |
| 语种 | 英语 |
| ISSN号 | 0277786X;1996756X |
| ISBN号 | 9781510650251 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/95735]  |
| 专题 | 西安光学精密机械研究所_空间光学应用研究室 |
| 作者单位 | Xi'an Institute of Optics and Precision Mechanics of CAS, China |
| 推荐引用方式 GB/T 7714 | Liangjie, Feng,Chenjie, Wang,Gangyi, Zou. Design of the Active Cooling Focal Plane Component for the Space Astronomy Telescope[C]. 见:. Chengdu, China. 2021-06-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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