Infrared and Laser Engineering, Volume. 53, Issue 10, 20240202(2024)
Research on optimization of temperature uniformity of spaceborne blackbody
Figures & Tables(9)
Fig. 1. (a) Schematics of structure of the blackbody; (b) Schematics of reverse side of the blackbody
Fig. 3. Schematics of the thermistors embedded in the back of the blackbody
Fig. 7. Comparison of performance of 6-layer UTSs. (a) Using 0 or 1 layer PI; (b) Using 2 layers PI
Table 1. Thermophysical properties used in the finite element analysis
View tableView in ArticleTable 1. Thermophysical properties used in the finite element analysis
Material Density/ kg·m−3 In-plane thermal conductivity/ W·(m·K)−1 Normal thermal conductivity/ W·(m·K)−1 Specific heat capacity/ J·(kg·K)−1 Al alloy (2A12) 2780 121 121 920 Copper 8900 385 385 394 Polyimide (PI) 1411 0.4 0.4 1004 Thermal pyrolytic graphite (TPG) 2298 1091 8.0 811
Table 2. Analysis of cause of temperature changes of blackbody (Unit: K)
View tableView in ArticleTable 2. Analysis of cause of temperature changes of blackbody (Unit: K)
Uniform temperature structure Heater Blackbody Heat pipe at the blackbody side Heat pipe at the radiator side Radiator 0(2+1) 324.418 323.041 322.945 319.769 318.203 3(2+1) 326.089 323.072 322.878 319.639 318.075
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Qiang ZHANG, Baoyu YANG, Zhipeng GUO, Yuhan LI, Junfei LI, Yinong WU. Research on optimization of temperature uniformity of spaceborne blackbody[J]. Infrared and Laser Engineering, 2024, 53(10): 20240202
Paper Information
Category: 红外技术及应用
Received: Jul. 12, 2024
Accepted: --
Published Online: Dec. 13, 2024
The Author Email: YANG Baoyu (byyang@mail.sitp.ac.cn)
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