Transmittance measurement device of large-aperture infrared optical system

doi:10.37188/OPE.20233112.1752

CIOMP OpenIR

	Transmittance measurement device of large-aperture infrared optical system
	H. Li; H. Guo; J. Li; Y. Tang; Y. Yang and Z. Li
	2023
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	31 期号:12 页码:1752-1760
摘要	To solve the transmittance measurement problem of large-aperture infrared optical systems in complete machines，a single-channel infrared transmittance measurement method based on grayscale images is proposed，and a transmittance measurement device is established. First，a blackbody and a target are placed at the focal plane of the infrared optical system under measurement according to the specified position relationship，and an infrared thermal imager is placed at the entrance port of the infrared optical system to capture the radiation image. Then，the infrared thermal imager is placed in front of the blackbody to capture the radiation image of the blackbody. Finally，the mean value of the radiation image and the mean value of the blackbody radiation image are calculated；the ratio of the two values is the transmittance of the measured system. Upon measuring the infrared transmittance of a large-aperture infrared optical system by using the proposed method，the results indicate that the method can accurately measure the transmittance of large-aperture infrared optical systems. The absolute error between the measured value and the design value is 0. 85%. Analyzing the uncertainty of the test results reveals that the transmittance measurement accuracy of the proposed method is approximately 1. 04%. This method entails a simple measurement process and is effective for evaluating the transmittance of large-aperture infrared optical systems in complete machines. © 2023 Chinese Academy of Sciences. All rights reserved.
DOI	10.37188/OPE.20233112.1752
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收录类别	ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67608
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Li,H. Guo,J. Li,et al. Transmittance measurement device of large-aperture infrared optical system[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2023,31(12):1752-1760.
APA	H. Li,H. Guo,J. Li,Y. Tang,&Y. Yang and Z. Li.(2023).Transmittance measurement device of large-aperture infrared optical system.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,31(12),1752-1760.
MLA	H. Li,et al."Transmittance measurement device of large-aperture infrared optical system".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 31.12(2023):1752-1760.

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