2022 Update for the Differences Between Thermodynamic Temperature and ITS-90 Below 335 K

IF 4.4 2区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physical and Chemical Reference Data Pub Date : 2022-12-01 DOI:10.1063/5.0131026

C. Gaiser, B. Fellmuth, R. Gavioso, M. Kalemci, V. Kytin, T. Nakano, A. Pokhodun, P. Rourke, R. Rusby, F. Sparasci, P. Steur, W. Tew, R. Underwood, Rod White, I. Yang, Jintao Zhang

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引用次数: 7

Abstract

In 2011, a working group of the Consultative Committee for Thermometry published their best estimates of the differences between the thermodynamic temperature T and its approximation ( T90), the temperature according to the International Temperature Scale of 1990, ITS-90. These consensus estimates, in combination with measurements made in accordance with ITS-90, are an important alternative to primary thermometry for those requiring accurate measurements of thermodynamic temperature. Since 2011, there has been a change in the definition of the kelvin and significant improvements in primary thermometry. This paper updates the ( T − T90) estimates by combining and analyzing the data used for the 2011 estimates and data from more recent primary thermometry. The results of the analysis are presented as a 12th-order polynomial representing the updated consensus values for the differences and a sixth-order polynomial for their uncertainty estimates.

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热力学温度和ITS-90低于335 K的差异的2022年更新

2011年，测温咨询委员会的一个工作组公布了他们对热力学温度T与其近似值(T90)之间差异的最佳估计，T90是根据1990年国际温标its -90计算的温度。对于那些需要精确测量热力学温度的人来说，这些共识估计与根据ITS-90进行的测量相结合，是主要测温的重要替代方法。自2011年以来，开尔文的定义发生了变化，初级测温也有了重大改进。本文通过结合和分析2011年估算数据和近期初级测温数据更新了(T−T90)估算值。分析结果用12阶多项式表示差异的最新共识值，用6阶多项式表示不确定性估计值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Physical and Chemical Reference Data 化学-化学综合

CiteScore

6.90

自引率

11.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Physical and Chemical Reference Data (JPCRD) is published by AIP Publishing for the U.S. Department of Commerce National Institute of Standards and Technology (NIST). The journal provides critically evaluated physical and chemical property data, fully documented as to the original sources and the criteria used for evaluation, preferably with uncertainty analysis. Critical reviews may also be included if they document a reference database, review the data situation in a field, review reference-quality measurement techniques, or review data evaluation methods.