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State primary special standard of units of mass and volume of liquid in a stream, mass and volumetric fowrates of liquid GET 63-2019
https://doi.org/10.32446/0368-1025it.2021-2-3-8
Abstract
The article describes aspects of improving metrological support for measuring units of mass and volume of liquid in the flow, mass and volume flow of liquid in the Russian Federation. We consider fundamentally new design solutions for key modules of the reference unit EU-3 of the state primary special standard for units of mass and volume of liquid in the flow, mass and volume flow of liquid GET 63-2019, based on numerical and physical modeling of hydrodynamic processes under forced pressure flow of the working medium (water) in pipelines with different flow geometry. The principles of operation of water flow stabilization and control modules are substantiated. Innovative solutions are presented for the design of sensitive elements of the flow switch, the principle of constructing a time diagram, and determining the measurement time interval. Metrological characteristics of the state primary special standard of units of mass and volume of liquid in the flow, mass and volume flow of liquid GET 63-2019 are presented.
About the Authors
A. R. Tukhvatullin
VNIIR, Affiliated branch of the D. I. Mendeleyev Institute for Metrology
Russian Federation
Russian Federation
Albert R. Tukhvatullin
Kazan
A. V. Shchelchkov
VNIIR, Affiliated branch of the D. I. Mendeleyev Institute for Metrology;
A. N. Tupolev Kazan National Research Technical University – KAI
Russian Federation
Russian Federation
Alexey V. Shchelchkov
Kazan
V. A. Fafurin
Kazan National Research Technological University
Russian Federation
Russian Federation
Viktor A. Fafurin
Kazan
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Review
For citations:
Tukhvatullin A.R., Shchelchkov A.V., Fafurin V.A. State primary special standard of units of mass and volume of liquid in a stream, mass and volumetric fowrates of liquid GET 63-2019. Izmeritel`naya Tekhnika. 2021;(2):3-8. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-2-3-8
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