ITS－90（13．8～273．16K）国家温度基准组和工作基准组的建立

Establishment of the Primary Standard and Working Standard of Temperature According to ITS-90 Between 13. 8K and 273. 16K

本文介绍了ＩＴＳ－９０（１３．８～２７３．１６Ｋ）国家温度基准组和工作基准组的建立、误差传递的研究、以及基准组和工作基准组的非唯一性的实验研究。实验表明，该基准组和工作基准组在全温区（１３．８～２７３．１６Ｋ）的总不确定度为２．７ｍＫ。研究了基准组在全温区的误差分布。

The error distribution of the primary standard and working standard of temperature between 13.8K and 273. 16K according to ITS-90 has been established,and the non-uniqueness of these standards has also been studied. The total uncertainty of these standards among the whole temperature region is about 2.7mK.