• Infrared and Laser Engineering
  • Vol. 52, Issue 1, 20221395 (2023)
Hongyu Guan1,2, Lei Wang1, Kuncheng Feng1,2, Yanjun Xu1..., Fan Jiang1 and Chengshan Han1|Show fewer author(s)
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/IRLA20221395 Cite this Article
    Hongyu Guan, Lei Wang, Kuncheng Feng, Yanjun Xu, Fan Jiang, Chengshan Han. Thermal design of Hα solar space telescope[J]. Infrared and Laser Engineering, 2023, 52(1): 20221395 Copy Citation Text show less
    Structure of Hα solar space telescope
    Fig. 1. Structure of Hα solar space telescope
    Distribution of electric boxes and focal plane components
    Fig. 2. Distribution of electric boxes and focal plane components
    Relative positions of camera heat dissipation surface and satellite solar panel
    Fig. 3. Relative positions of camera heat dissipation surface and satellite solar panel
    Finite element model of camera
    Fig. 4. Finite element model of camera
    Temperature analysis results of optical mechanical structure under low temperature condition
    Fig. 5. Temperature analysis results of optical mechanical structure under low temperature condition
    Temperature analysis results of each electric box under high temperature condition
    Fig. 6. Temperature analysis results of each electric box under high temperature condition
    Test temperature of optical element (a) and frame structure (b) under low temperature condition
    Fig. 7. Test temperature of optical element (a) and frame structure (b) under low temperature condition
    Temperature test results of each electric box under high temperature condition
    Fig. 8. Temperature test results of each electric box under high temperature condition
    Temperature of each electric box during long term operation in orbit
    Fig. 9. Temperature of each electric box during long term operation in orbit
    ComponentWorking power/WOperating mode
    Area array imaging focal plane4.5Short-term working of 20 min each orbit
    Area array imaging electric box4.5
    Spectral scanning mechanism5Short-term working of 20 min each orbit or continuous working of 10 h
    Control electric box8
    Spectral imaging focal plane4.5
    Spectral imaging electric box4.5
    Compression electric box12
    Secondary power supply12
    Total55
    Table 1. Heat source distribution of Hα solar space telescope
    AssemblyWorking temperature/℃
    Framework20±4
    Optical element20±4
    Focal plane5-40
    Electric box0-45
    Spectral scanning mechanism10-30
    Table 2. Thermal control indexes
    Working stateParameter setting
    Low temperature condition(1) Telescope is not in working mode; (2) Thermal control coating takes initial-life parameter; (3) Calculation date is December 21, at this time |β| angle is the smallest and the external heat flow is the smallest, the solar constant is 1322 W/m2
    High temperature condition(1) Telescope works continuously for 10 h; (2) Thermal control coating takes end-of-life parameter; (3) Calculation date is September 3, at this time |β| angle is the largest and the external heat flow is the largest, the solar constant is 1412 W/m2
    Table 3. Thermal analysis conditions
    Hongyu Guan, Lei Wang, Kuncheng Feng, Yanjun Xu, Fan Jiang, Chengshan Han. Thermal design of Hα solar space telescope[J]. Infrared and Laser Engineering, 2023, 52(1): 20221395
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