Space Cryogenic Absolute Radiometer

doi:10.3788/fgxb20194008.1015

CIOMP OpenIR

	Space Cryogenic Absolute Radiometer
	D.Wu; K.Wang; X.Ye; Y.-P.Wang; W.Fang
	2019
发表期刊	Faguang Xuebao/Chinese Journal of Luminescence
ISSN	10007032
卷号	40 期号:8 页码:1015-1021
摘要	The space cryogenic absolute radiometer (SCAR) is developed at Changchun institute of optics, fine mechanics and physics, in order to satisfy the demands of accuracy and traceability of onboard radiance calibration of spaceborn remote sensors. In this paper, the design decision of SCAR was introduced with emphasis, based on the brief introduction of the state-of-the-art of the cryogenic radiometer benchmark. The working environment of 20 K of SCAR was supplied by a stirling-type cryocooler. The responsivities of total cavity and spectral cavity were designed to be 0.2 K/mW and 1 K/mW by optimizing the structures of cavities and thermal links. The radiance benchmark can be founded by the optical power measurement of 0.02% accurate, which was ensured by close-loop high precision temperature control and electrical substitution measurement procedure with twice electrical heating, as always as the excellent thermal properties of detectors at low temperatures. The radiance standard was transferred to the spectral cavity through temperature comparing, in order to realize the traceable spectral radiometric measurement. This work affords technical reserve for the traceable spectral radiance calibration of spaceborn remote sensors. 2019, Science Press. All right reserved.
关键词	Radiometers,Calibration,Cryogenic equipment,Remote sensing
DOI	10.3788/fgxb20194008.1015
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62953
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	D.Wu,K.Wang,X.Ye,et al. Space Cryogenic Absolute Radiometer[J]. Faguang Xuebao/Chinese Journal of Luminescence,2019,40(8):1015-1021.
APA	D.Wu,K.Wang,X.Ye,Y.-P.Wang,&W.Fang.(2019).Space Cryogenic Absolute Radiometer.Faguang Xuebao/Chinese Journal of Luminescence,40(8),1015-1021.
MLA	D.Wu,et al."Space Cryogenic Absolute Radiometer".Faguang Xuebao/Chinese Journal of Luminescence 40.8(2019):1015-1021.

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