中温区真空标准黑体辐射源研制  

Development of Vacuum Standard Blackbody Radiation Source in Middle Temperature Zone

作　　者：杨延龙 郝小鹏[2] 宋健[2] 刘洋[2] 扈又华 谢臣瑜 刘延 谢琳琳[2] YANG Yan-long;HAO Xiao-peng;SONG Jian;LIU Yang;HU You-hua;XIE Chen-yu;LIU Yan;XIE Lin-lin(College of Applied Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu,Sichuan 610059,China;National Institute of Metrology,Beijing 100029,China)

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059 [2]中国计量科学研究院,北京100029

出　　处：《计量学报》2021年第2期129-136,共8页Acta Metrologica Sinica

基　　金：国家重点研发计划(2018YFB0504700,2018YFB0504702)。

摘　　要：介绍了中国计量科学研究院研制的中温区真空标准黑体辐射源的结构设计,工作原理,测试结果和不确定度评定。黑体辐射源工作温度范围为320~500 K,黑体空腔开口直径为50 mm,空腔深度为260 mm,表面喷涂了耐高温漆,空腔发射率优于0.999。真空环境下测试了黑体在335~500 K温度范围内的轴向温度均匀性,温度稳定性及黑体辐射源亮度温度等性能指标,结果显示黑体温度均匀性优于0.15 K,40 min内温度稳定性优于0.03 K。分析了黑体辐射源的不确定度来源,黑体辐射源的合成标准不确定度优于0.04 K。The structure design,working principle,test results and uncertainty evaluation of the medium temperature vacuum standard blackbody radiation source developed by National Institution of Metrology in China are introduced.The black body radiation source has a working temperature range of 320~500 K,the black body cavity aperture diameter is 50 mm,the cavity depth is 260 mm,the surface is sprayed with high temperature paint,and the cavity emissivity is better than 0.999.The blackbody's axial temperature uniformity,temperature stability and blackbody radiation source brightness temperature were tested in vacuum,and the blackbody temperature uniformity is better than 0.15 K,and the temperature stability within 40 min is better than 0.03 K.The uncertainty sources of black body radiation source are analyzed,and the combined standard uncertainty of the black body radiation source is better than 0.04 K.

关 键 词：计量学 红外遥感 黑体辐射源 中温区 发射率 辐射亮度温度 不确定度 

分 类 号：TB942[一般工业技术—计量学]