弱光单星模拟器的设计与标定 
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Design and Calibration of Weak-Light Single Star Simulator
1 中国科学院西安光学精密机械研究所, 陕西 西安 710119
2 中国科学院大学, 北京 100049
图 & 表
图 1. 弱光单星模拟器原理图
Fig. 1. Block diagram of weak-light single star simulator
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图 2. 积分球出光口光谱辐亮度标定
Fig. 2. Spectral radiance calibration of the light outlet of integrating sphere
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图 3. 积分球出光口处光谱辐亮度
Fig. 3. Spectral radiance of the light outlet of integrating sphere
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图 4. 弱光单星模拟器的星等模拟范围
Fig. 4. Magnitude simulation range of the weak-light single star simulator
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图 5. KLL-04型宽量程照度计测量平行光管出光口照度
Fig. 5. Measuring illuminance in the light outlet of collimator by KLL-04 wide-range illuminometer
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图 6. 探测相机对高星等目标所成星点图像
Fig. 6. Star point image of high magnitude target imaging by detecting cameras
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表 1(21)式中第1、2、4~6项数值
Table1. Values of the 1st、2nd、4th-6th item in equation (21)
| Value of the 1st item | Value of the 2nd item | Value of the 4th item | Value of the 5th item | Value of the 6th item |
|---|
| (5%)2 | (5%)2 | (0.2%)2 | (0.23%)2 | (0.15%)2 |
|
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表 2(21)式中第3项数值、星等模拟范围及精度
Table2. Values of the 3rd item in equation (21)、simulated range and precision of magnitude
| Diameter of star point board /mm | 0.005 | 0.01 | 0.03 | 0.05 | 0.1 | 0.5 | 1 |
|---|
| Value of the 3rd item in equation (21) | (8%)2 | (4%)2 | (1.34%)2 | (0.8%)2 | (0.4%)2 | (0.08%)2 | (0.04%)2 | | Magnitude simulation range /Mv | 4.3-19.5 | 2.8-17.8 | 0.2-15.2 | -1-14 | -2.2-12.8 | -5.7-9.3 | -7.2-7.8 | | UM /% | 11.60 | 8.83 | 7.82 | 7.74 | 7.70 | 7.69 | 7.69 |
|
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表 3实验室标定结果
Table3. Result of laboratory calibration
| Ample of photoelectric detector /(10-5 A) | Simulated illuminance /(10-7 lx) | Measured illuminance /(10-7 lx) | Simulated magnitude /Mv | Measured magnitude /Mv | Absolute error /Mv | Relative error /% |
|---|
| 3490 | 4930 | 5400 | -5.67 | -5.77 | -0.10 | 1.76 | | 3470 | 4890 | 5350 | -5.66 | -5.76 | -0.10 | 1.77 | | 3390 | 4780 | 5230 | -5.64 | -5.74 | -0.10 | 1.77 | | 3240 | 4580 | 5010 | -5.59 | -5.69 | -0.10 | 1.79 | | 3020 | 4260 | 4690 | -5.52 | -5.62 | -0.10 | 1.81 | | 2700 | 3810 | 4200 | -5.40 | -5.50 | -0.10 | 1.85 | | 2300 | 3250 | 3570 | -5.22 | -5.32 | -0.10 | 1.92 | | 1830 | 2580 | 2830 | -4.97 | -5.07 | -0.10 | 2.01 | | 1330 | 1880 | 2070 | -4.63 | -4.73 | -0.10 | 2.16 | | 889 | 1250 | 1390 | -4.19 | -4.30 | -0.11 | 2.63 | | 542 | 764 | 845 | -3.65 | -3.76 | -0.11 | 3.01 | | 301 | 424 | 470 | -3.01 | -3.12 | -0.11 | 3.65 | | 152 | 215 | 238 | -2.27 | -2.38 | -0.11 | 4.85 | | 68.6 | 96.8 | 106 | -1.41 | -1.51 | -0.10 | 7.09 | | 26.5 | 37.4 | 41.1 | -0.37 | -0.48 | -0.11 | - | | 8.12 | 11.4 | 12.1 | 0.91 | 0.85 | -0.06 | 6.59 | | 3.37 | 4.76 | 4.62 | 1.86 | 1.90 | 0.04 | 2.15 |
|
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表 4天文观测结果
Table4. Result of astro-observation
| Camera name | Laboratory result /Mv | Astro-observation result /Mv | Absolute error /Mv | Relative error /% |
|---|
| Camera 1 | 6.5 | 6.38 | 0.12 | 1.9 | | Camera 2 | 15.2 | 14.8 | 0.4 | 2.6 |
|
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刘尚阔, 薛勋, 李坤, 曹昆, 赵建科, 周艳, 姚保利. 弱光单星模拟器的设计与标定[J]. 光学学报, 2017, 37(10): 1012001. Shangkuo Liu, Xun Xue, Kun Li, Kun Cao, Jianke Zhao, Yan Zhou, Baoli Yao. Design and Calibration of Weak-Light Single Star Simulator[J]. Acta Optica Sinica, 2017, 37(10): 1012001.
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