摘要
叙述中国计量科学研究院复现我国银凝固点以上国际温标 (ITS 90 )的原理、方法、仪器设备、实验结果、温标不确定度评定以及参加国际关键比对的初步结果。我国 961 78℃~ 2 2 0 0℃温度基准的扩展不确定度为 0 1 0~0 65℃ (置信水平p =0 99)。 1 998年参加国际计量局温度关键比对 ,结果令人满意。
The principle, method, experiment facilities and result of the realization of the International Temperature Scale of 1990(ITS\|90) above silver freezing point at NIM are described. Methods of determining the effective wavelength, the non\|linearity, the size\|of\|source effect are introduced. The estimation of uncertainties shows that the uncertainty of realizing ITS\|90 is 0 10℃ at 961℃ and 0 65℃ at 2200℃ with 99% confidence level.
出处
《现代计量测试》
2001年第2期13-21,共9页
Modern Measurement and Test