Indirect validation method of thermal design for exposed opto-electro-mechanical instrument on satellite

被引：0

作者：

Liu S.-R. ^{[1
]}

Liu B.-L. ^{[1
]}

Luo Z.-T. ^{[2
]}

Yang Q.-B. ^{[3
]}

机构：

[1] Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing

[2] Chang chun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun

[3] National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin

来源：

Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2018年 / 26卷 / 07期

关键词：

Optical communication; Opto-electro-mechanical instrument; Thermal balance test; Thermal model correction;

D O I：

10.3788/OPE.20182607.1741

中图分类号：

学科分类号：

摘要：

Satellite-borne opto-electromechanical instruments preserve both optical systems and mechanism properties; the former has a strict requirement for temperature, and the latter has a complex structure and is constantly moving. This is a challenge to the test validation of the thermal characteristics. A case study of the indirect validation method of the thermal design for the optical communication terminal is presented. The indirect validation method may be utilized to predict the in-orbit temperature through the thermal analytical model, which is corrected using temperature data in the thermal balance test. The thermal balance test and model correction have been made. Very good correlation was demonstrated between the computed results of the proposed model and the measured test data; a deviation of 81% is less than 5℃. Thus, the model is appropriate for use in validation of thermal design. Comparing the thermal analytical results to the flight results, the deviation of 81% is less than 4℃. This demonstrates the accuracy and the effectiveness of the indirect validation method, and the method meets the application requirements of optical communication terminals on satellites. The proposed indirect validation method greatly reduces the difficulty of thermal testing and is of certain reference value to altitude-varied and high temperature precision opto-electromechanical instruments. © 2018, Science Press. All right reserved.

引用

页码：1741 / 1748

页数：7

共 10 条

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