Yanqing Wang, Weifeng Du, Yongkang Wu, Zhengyi Zhai, Zhongjia Zhu, Zhaohui Cao. Design and Experimental Verification of Thermal Stability for Micro Star Sensors[J]. Chinese Journal of Lasers, 2024, 51(13): 1304007
- Chinese Journal of Lasers
- Vol. 51, Issue 13, 1304007 (2024)
Fig. 1. Thermal stability test diagram of star sensor
Fig. 2. Installation diagram of stability test system and star sensor. (a) Thermal stability test system; (b) installation diagram of temperature measurement points and heating plates for star sensors
Fig. 3. Composition of star sensor
Fig. 4. Meshing of simulation model and definition of coordinate system
Fig. 5. Comparison of main frame and lens structure before and after optimization. (a) Original main frame bottom structure; (b) main frame bottom structure after optimization; (c) original main frame lens mounting surface; (d) main frame lens mounting surface after optimization; (e) original lens structure; (f) lens structure after optimization
Fig. 6. Outline drawing and temperature field distribution of baffle. (a) Outline drawing; (b) temperature field distribution simulation
Fig. 7. Variation of optical axis direction with bracket temperature. (a) Curve of right ascension changing with bracket temperature;
Fig. 8. Variation of optical axis direction with baffle temperature. (a) Curve of right ascension changing with baffle temperature;
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Table 1. Key technical indicators of thermal stability test system
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Table 2. Comparison of optical axis pointing offset under different structural statuses
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Table 3. Comparison of optical axis pointing offset thermal stability results under different structural statuses
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