Design and Calibration of Weak-Light Single Star Simulator

Shangkuo Liu; Xun Xue; Kun Li; Kun Cao; Jianke Zhao; Yan Zhou; Baoli Yao

doi:10.3788/AOS201737.1012001

Journals >Acta Optica Sinica >Volume 37 >Issue 10 >Page 1012001 > Article

Acta Optica Sinica
Vol. 37, Issue 10, 1012001 (2017)

Design and Calibration of Weak-Light Single Star Simulator

Shangkuo Liu^1、2、*, Xun Xue¹, Kun Li¹, Kun Cao¹, Jianke Zhao¹, Yan Zhou¹, and Baoli Yao¹

Author Affiliations

¹ Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China

² University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.3788/AOS201737.1012001 Cite this Article Set citation alerts

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 Copy Citation Text

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Fig. 1. Block diagram of weak-light single star simulator

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Fig. 2. Spectral radiance calibration of the light outlet of integrating sphere

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Fig. 3. Spectral radiance of the light outlet of integrating sphere

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Fig. 4. Magnitude simulation range of the weak-light single star simulator

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Fig. 5. Measuring illuminance in the light outlet of collimator by KLL-04 wide-range illuminometer

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Fig. 6. Star point image of high magnitude target imaging by detecting cameras

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Value of the 1^st item	Value of the 2^nd item	Value of the 4^th item	Value of the 5^th item	Value of the 6^th item
(5%)²	(5%)²	(0.2%)²	(0.23%)²	(0.15%)²

Table 1. Values of the 1st、2nd、4th-6th item in equation (21)

Diameter of star point board /mm	0.005	0.01	0.03	0.05	0.1	0.5	1
Value of the 3^rd 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
U_M /%	11.60	8.83	7.82	7.74	7.70	7.69	7.69

Table 2. Values of the 3rd item in equation (21)、simulated range and precision of magnitude

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

Table 3. Result of laboratory calibration

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

Table 4. Result of astro-observation

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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