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Realization of new definition of kelvin on National primary state standard of temperature in the temperature range from 0.3 K to 273.16 K GET 35-2021
V. G. Kytin,
M. Y. Ghavalyan,
A. A. Petukhov,
B. G. Potapov,
Y. E. Razhba,
E. G. Aslanyan,
A. N. Schipunov https://doi.org/10.32446/0368-1025it.2021-8-8-15
Abstract
Description and metrological characteristics are presented of upgraded in 2021 equipment of National primary state standard of temperature on the temperature range from 0.3 K to 273.16 K GET 35-2021. GET 35-2021 allow to to the reproduce and disseminate the unit of temperature according to its definition accepted on 26th CGPM in 2018. Three installations of acoustic gas thermometry developed in 2012–2019 have been introduced in the National primary state standard covering ranges 79–273.16 K, 4.2–80 K, 268.16–273.16 K. The equipment for reproduction of fixed points of of International Temperature scale ITS-90 has been upgraded for uncertainty reduction. Uncertainty of reproduction of thermodynamic temperature and temperature according to ITS-90 have been calculated on the basis of investigations of upgraded equipment.
About the Authors
V. G. Kytin
Russian metrological institute of technical physics and radio engineering (VNIIFTRI);
M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Vladimir G. Kytin
Mendeleevo, Moscow region
Moscow
M. Y. Ghavalyan
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Mamikon Yu. Ghavalyan
Mendeleevo, Moscow region
A. A. Petukhov
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Aleksey A. Petukhov
Mendeleevo, Moscow region
B. G. Potapov
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Boris G. Potapov
Mendeleevo, Moscow region
Y. E. Razhba
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Yakov E. Razhba
Mendeleevo, Moscow region
E. G. Aslanyan
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Edward G. Aslanyan
Mendeleevo, Moscow region
A. N. Schipunov
Russian metrological institute of technical physics and radio engineering (VNIIFTRI)
Russian Federation
Russian Federation
Andrey N. Schipunov
Mendeleevo, Moscow region
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Review
For citations:
Kytin V.G., Ghavalyan M.Y., Petukhov A.A., Potapov B.G., Razhba Y.E., Aslanyan E.G., Schipunov A.N. Realization of new definition of kelvin on National primary state standard of temperature in the temperature range from 0.3 K to 273.16 K GET 35-2021. Izmeritel`naya Tekhnika. 2021;(8):8-16. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-8-8-15
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