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28.01.2022

Realization of a New Definition of Kelvin on State Primary Standard of Temperature Unit Get 35-2021 in the Temperature Range from 0.3 To 273.16 K

verfasst von: V. G. Kytin, M. Yu. Ghavalyan, A. A. Petukhov, B. G. Potapov, Ya. E. Razhba, E. G. Aslanyan, A. N. Schipunov

Erschienen in: Measurement Techniques | Ausgabe 8/2021

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Abstract

The article describes the composition and metrological characteristics of the State Primary Standard of temperature unit – kelvin – in the range from 0.3 K to 273.16 K GET 35-2021. GET 35-2021 allows reproducing and disseminating the temperature unit in accordance with the definition of kelvin, accepted at the 26th General Conference on Weights and Measures (26th CGPM) in 2018. GET 35-2021 includes three installations of acoustic gas thermometry developed in 2012–2019, which are the primary means of measuring temperature in the ranges of 79–273.16 K, 4.2–80K, 268.16–273.16 K. Equipment for reproducing the reference points of the International Temperature Scale ITS-90 has been upgraded in order to improve the accuracy. Based on the studies performed, the uncertainty of reproducing the thermodynamic temperature and temperature according to ITS-90 has been calculated.

Vorheriger Artikel State Primary Standard of Optical Density Unit Get 206-2016

Nächster Artikel Analytical Representation of the Complex Frequency Response of a Hydrophone

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Titel: Realization of a New Definition of Kelvin on State Primary Standard of Temperature Unit Get 35-2021 in the Temperature Range from 0.3 To 273.16 K
verfasst von: V. G. Kytin
M. Yu. Ghavalyan
A. A. Petukhov
B. G. Potapov
Ya. E. Razhba
E. G. Aslanyan
A. N. Schipunov
Publikationsdatum: 28.01.2022
Verlag: Springer US
Erschienen in: Measurement Techniques / Ausgabe 8/2021
Print ISSN: 0543-1972
Elektronische ISSN: 1573-8906
DOI: https://doi.org/10.1007/s11018-021-01980-8

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