Infrared and Laser Engineering, Volume. 52, Issue 7, 20220852(2023)
Design of high-precision integrated temperature control system of spaceborne blackbody
Figures & Tables(15)
Fig. 3. Diagram of temperature measurement and control of spaceborne blackbody
Fig. 7. The fitting curve of blackbody’s resistance vs temperature
Fig. 8. Blackbody temperature control curve in thermal vacuum test
Table 1. Comparison of different temperature control algorithms
View tableView in ArticleTable 1. Comparison of different temperature control algorithms
Control algorithm Bias/℃ Stabilization time/s Overshoot/℃ PID 0 1302 4.97 IPID −1.767 114 0 FIPID 0 467 0
Table 2. Comparison of RMSE of temperature fitted by different methods
View tableView in ArticleTable 2. Comparison of RMSE of temperature fitted by different methods
Fitting method RMSE Linear polynomial 0.01819 Quadratic polynomial 0.00077 Cubic polynomial 0.00077
Table 3. Comparison of RMSE of resistance fitted by different methods
View tableView in ArticleTable 3. Comparison of RMSE of resistance fitted by different methods
Fitting method RMSE Linear polynomial 0.0975 Quadratic polynomial 0.0692 Cubic polynomial 0.0721
Table 4. Accuracy of blackbody temperature measurement system
View tableView in ArticleTable 4. Accuracy of blackbody temperature measurement system
Rstandard/Ω Rmeasure/Ω $\widehat R$ Tbefore/K Taccuracy /K 900 900.271 900.034 −0.068 0.009 1000 1000.065 1000.082 −0.016 0.021 1050 1049.809 1049.974 0.048 −0.007 1100 1099.789 1100.117 0.054 0.030 1150 1149.564 1150.069 0.111 0.018 1200 1199.426 1200.122 0.147 0.032 1250 1249.076 1249.978 0.237 −0.006 1300 1298.960 1300.083 0.268 0.022 1350 1348.627 1349.985 0.355 −0.004 1400 1398.527 1400.134 0.383 0.035
Table 5. Blackbody temperature control in thermal vacuum test
View tableView in ArticleTable 5. Blackbody temperature control in thermal vacuum test
Set point/K Stabilization time/min Overshoot/K Control accuracy/K Bias/K 256 - - 0.036 −0.008 265 3 0.170 0.037 0.013 273 4 0.249 0.037 0.009 282 5 0.300 0.037 −0.003 295 7 0.292 0.037 0.007 300 4 0.012 0.038 −0.012 308 6 0.024 0.038 0.013 315 6 0.171 0.038 0.018 326 7 0.014 0.038 −0.014 344 11 0.031 0.039 0.008 350 6 0 0.039 0.006 360 9 0 0.039 0.001 367 8 0.006 0.039 −0.006
Table 6. Blackbody temperature control in orbit
View tableView in ArticleTable 6. Blackbody temperature control in orbit
Set point/K Stabilization time/min Overshoot/K Control accuracy/K Bias/K 268 4 0.469 0.037 −0.008 273 3 0.393 0.037 −0.012 290 7 0.312 0.037 0.006 295 3 0.274 0.038 0.012 315 8 0.139 0.038 −0.013 334 9 0.046 0.039 0.008 350 10 0.013 0.039 0.013
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Huage Hei, Xiaoyan Li, Lufang Li, Ping Cai, Fansheng Chen. Design of high-precision integrated temperature control system of spaceborne blackbody[J]. Infrared and Laser Engineering, 2023, 52(7): 20220852
Paper Information
Category: Photoelectric measurement
Received: Feb. 5, 2023
Accepted: --
Published Online: Aug. 16, 2023
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