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| Development of H500 Type High Precision Vacuum Blackbody Used as a Calibration Standard for Infrared Remote Sensing |
| GONG Lü-yu1,2,HAO Xiao-peng2,SUN Jian-ping2,SONG Jian2,YUAN Zun-dong2,GU Ming-jian3,DING Lei3 |
1. College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu,Sichuan 610059, China
2. National Institute of Metrology, Beijing 100029, China
3. Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, Shanghai 200083, China
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Abstract A high precision vacuum blackbody（H500 type）with the temperature range between -93 ℃ to 220 ℃ is developed at the National Institute Metrology of China. The performances are tested under the vacuum and low background condition (liquid-nitrogen-cooled shroud). The major technical parameters of the blackbody, such as the emissivity and uniformity are measured at room temperature and atmospheric environment. When the heating rate is 1 ℃/min, the time is shorter than 50 minutes and the temperature stability is better than 0.01 ℃ during 10 minutes. The emissivity of the blackbody at 20 ℃, 30 ℃ and 50 ℃ are 0.996 5, 0.9966 and 0.996 3, respectively. The temperature uniformity at the bottom of the blackbody cavity is better than 0.03 ℃. The expanded uncertainty is better than 0.1 ℃（k=2） over the entire temperature range.
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Received: 30 May 2016
Published: 28 February 2017
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Corresponding Authors:
Xiaopeng Hao
E-mail: haoxp@nim.ac.cn
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［1］张文建.“风云”系列气象卫星的发展现状及其展望 ［J］.上海航天,2001,18(2):8-14.
［2］郝小鹏,宋健,孙建平,等.风云卫星的红外遥感亮度温度国家计量标准装置［J］.光学精密工程,2015, 23(7):1845-1851.
［3］许敏, 郝小鹏, 宋健,等. 190～340 K真空标准黑体辐射源研制［J］. 计量学报, 2015. 36(6A):50-54.
［4］Morozova S P, Parfentiev N A, Lisiansky B E, et al. Vacuum variable medium temperature blackbody ［J］. Int J Thermophys, 2010, 31(8):1809-1820.
［5］Morozova S P, Parfentiev N A, Lisiansky B E, et al. Vacuum variable temperature blackbody VTBB100 ［J］. Int J Thermophys,2008, 29(1):341-351.
［6］Sapritsky V I, Katysheva A A, Krutikov V N, et al. Standard radiometric facility for preflight calibration of space borne Earth observation instruments in IR spectral range ［C］//Proceeding of 12th International Conference on New Developments and Applications in Optical Radiometry, Finland: Newrad, 2014.
［7］Carter A C, Datla R U, Jung T M, et al. Low-background temperature calibration of infrared blackbodies ［J］. Metrologia, 2006, 43(2):46-50.
［8］宋健, 郝小鹏, 原遵东,等. 基于控制环境辐射的黑体辐射源发射率测量方法研究［J］. 中国激光, 2015,42(9):269-275.
［9］宋健,郝小鹏,原遵东,等.基于控制环境辐射发射率测量方法的超黑涂层发射率特性研究［J］. 计量学报, 2015, 36(6A): 24-27.
［10］原遵东, 陈桂生. 发射率影响修正近似公式及其适用性分析［J］. 计量技术, 2013,(4):7-10.
［11］原遵东, 邢波, 柏成玉,等. 有效亮度温度测量中发射率影响的修正［J］. 计量学报, 2014,35(6):578-582. |
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2017, Vol. 38 
