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| 真空镓固定点黑体辐射源研制 | |
| 引用本文： | 宋健,郝小鹏,胡朝云,周晶晶,杨延龙,刘洋,谢臣瑜. 真空镓固定点黑体辐射源研制[J]. 计量学报, 2022, 43(2): 163-168. DOI: 10.3969/j.issn.1000-1158.2022.02.04 |
| 作者姓名： | 宋健 郝小鹏 胡朝云 周晶晶 杨延龙 刘洋 谢臣瑜 |
| 作者单位： | 1. 中国计量科学研究院,北京 100029 2. 北京理工大学光电学院, 北京 100081 3. 成都理工大学 核技术与自动化工程学院,四川 成都 610059 |
| 基金项目： | 国家重点研发计划(2018YFB0504700,2018YFB0504702)； |
| 摘 要： | 为满足红外遥感载荷实验室辐射定标需求,实现红外遥感辐射量值溯源到ITS-90国际温标,研制了真空镓固定点黑体辐射源.黑体腔开口直径为25 mm,深度220 mm,内部喷涂高发射率涂层,通过仿真计算黑体腔的发射率优于0.9999.在真空下测试了镓固定点相变坪台的复现性为4.4 mK,坪台稳定性优于2 mK.测量了镓固定点... |
| 关 键 词： | 计量学 辐射定标 黑体 镓固定点 红外遥感 |
| 收稿时间： | 2021-01-26 |
Development of Vacuum Gallium Fixed-point Blackbody |
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| SONG Jian,HAO Xiao-peng,HU Chao-yun,ZHOU Jing-Jing,YANG Yan-long,LIU Yang,XIE Chen-yu. Development of Vacuum Gallium Fixed-point Blackbody[J]. Acta Metrologica Sinica, 2022, 43(2): 163-168. DOI: 10.3969/j.issn.1000-1158.2022.02.04 | |
| Authors: | SONG Jian HAO Xiao-peng HU Chao-yun ZHOU Jing-Jing YANG Yan-long LIU Yang XIE Chen-yu |
| Affiliation: | 1. National Institute of Metrology, Beijing 100029, China 2. School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China 3. College of Nuclear Technology and Automation Engineering,Chengdu University of Technology, Chengdu, Sichuan 610059 , China |
| Abstract: | The vacuum gallium fixed-point blackbody radiation source is developed to meet the requirements of radiometric calibration on the infrared remote sensing payload and achieve effective traceability of radiation values to ITS-90. The diameter of the blackbody cavity opening is 25mm, the depth of the cavity is 220mm. The cavity is coated with high emissivity coating. The emissivity of the blackbody is calculated to be 0.9999. The repeatability of the gallium fixed-point phase change plateau is measured under vacuum, the result is 4.4 mK. The stability of the plateau is better than 2 mK. The radiance temperature of the blackbody is measured, and the average radiance temperature in the wavelength range of 8~16 μm is 302.905 K. the influence of the circulating fluid temperature on the plateau and the radiance temperature of blackbody is studied. The combined standard uncertainty of the gallium fixed-point blackbody is analyzed, the result is 0.014K. |
| Keywords: | metrology radiance calibration,blackbody gallium fixed-point infrared remote sensing, |
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