计量学报Issue(3)：193-197,5.DOI:10.3969/j.issn.1000-1158.2014.03.01
以“固定点-高温计”方式传递961.78℃以上国际温标
Disseminating the internationai Temperature Scaie aboVe 961. 78 ℃in the“Fixed point-Pyrometer”Method
摘要
Abstract
The high-temperature primary standard system was gradually improved through the continuing research work at the National Institute of Metrology( NIM)in China. Based on the developed primary standard pyrometer,an improved scheme,the“fixed-point blackbody pyrometer”assembly, was applied to realize and disseminate the International Temperature Scale of 1990( ITS-90 )above the silver point. The new scheme can correct the drifts of the pyrometer and extend the highest temperature range from 2 200 ℃ to 2 474 ℃. The expanded uncertainties of the scale were 0. 08~0. 62℃ between the temperature range 961. 78~2 474 ℃. The uncertainties of the temperature scale are strongly supported by the international comparison of the high temperature fixed points’ITS-90 values among China,the UK and Spain in 2009. The new method could be not only applied in the highest level calibration of the precise pyrometers,but also in the calibration of the 900 nm infrared thermometers.关键词
计量学/国际温标/光电高温计/固定点/不确定度Key words
Metrology/International temperature scale/Pyrometer/Fixed point/Uncertainty分类
通用工业技术引用本文复制引用
卢小丰,原遵东,王景辉,柏成玉,董伟,郝小鹏,王铁军..以“固定点-高温计”方式传递961.78℃以上国际温标[J].计量学报,2014,(3):193-197,5.基金项目
国家科技平台基金 （）
