Temperature control technology for extra large surface blackbody based on two-phase fluid

被引：0
|
作者：
Yang C. [1 ]
Xu K. [1 ]
Xue L. [2 ]
Huang J. [1 ]
Yu X. [1 ]
Liu Y. [2 ]
Song Y. [1 ]
He M. [3 ]
机构：
[1] Beijing Institute of Spacecraft System Engineering, Beijing Key Laboratory of Space Thermal Control Technology, Beijing
[2] Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai
[3] School of Energy Science and Engineering, Harbin Institute of Technology, Harbin
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2022年 / 51卷 / 12期
关键词：
extra large; surface blackbody; temperature uniformity control; two-phase fluid loop;
D O I：
10.3788/IRLA20220195
中图分类号：
学科分类号：
摘要：
As an infrared standard source, surface blackbody is widely used in infrared temperature measurement, infrared imaging, infrared camera calibration and other fields. The infrared radiation performance of infrared standard source mainly depends on the control of surface blackbody temperature field. In order to meet the development needs of large aperture and large field of view of spaceborne and airborne infrared detectors, the temperature control technology of extra large surface blackbody is studied in this paper. Under the condition of outfield, the difficulty of temperature control increases with the increase of surface blackbody size. The temperature control system adopts the two-phase fluid loop technology to realize the high temperature uniformity and stability temperature control of a 3 m×3 m surface blackbody for the outfield field under different target temperatures. The experiment results show that the surface temperature uniformity control of the black body is better than ±0.60 ℃ and the stability control is better than 0.14 ℃/15 min. © 2022 Chinese Society of Astronautics. All rights reserved.
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