Results 201 to 210 of about 1,827,091 (267)

State primary volt standard of the fourth generation

Izmeritel`naya Tekhnika, 2023
The results of scientifi c research aimed at improving the State primary standard of electrical voltage unit GET 13-01, built on the basis of the Josephson quantum effect, are presented. In the process of improving GET 13-01, the following tasks were solved: the range of reproduction of constant voltage was expanded as a result of the transition from ...
A. S. Katkov, V. I. Shevtsov, J. A. Gromova   +2 more
openaire   +1 more source

State primary standard for the pH scale

Measurement Techniques, 1998
Information is given on the state primary standard for the pH scale that has been set up at VNIIFTRI. The measurement system is described and certification results are given. The future development of pH measurement in Russia is considered.
N. N. Zdorikov, O. V. Karpov, I. I. Maksimov, E. E. Seiku, V. V. Sobol'   +4 more
openaire   +1 more source

The state primary standard for the unit of refractive index

Measurement Techniques, 2004
The structure, working principle, and basic metrological characteristics are given for the State primary standard for a unit of refractive index GET 138-2003.
G. N. Vishnyakov, G. G. Levin, S. V. Kornysheva   +2 more
openaire   +1 more source

State primary standard of optical density unit GET 206-2016

Izmeritel`naya Tekhnika, 2021
The description of the State Primary Standard of optical density unit GET 206-2016 is given. The principle of operation of the standard, based on filtering the luminous flux of transmitted and reflected light, is described. The composition of the standard and its metrological characteristics are presented.
Dmitriy N. Zyablikov, Aleksandr V. Ivanov, Artem V. Koldashov, Sergey N. Marchenko   +3 more
openaire   +1 more source

State Primary Standard of the Unit of Infrared Radiance

Measurement Techniques, 2001
A description is given of the State primary standard approved in 2001 for the unit of infrared radiance.
I. I. Dolgikh, A. I. Pokhodun, O. V. Rybolovleva, V. V. Smirnova   +3 more
openaire   +1 more source

Primary state reference standard for the unit of pressure ? The pascal

Measurement Techniques, 1972
Investigations of the primary state standard for the unit of pressure carried out at the VNIIM have led to the following conclusions.
E. F. Dolinskii, G. I. Loskutov, G. I. Polukhin   +2 more
openaire   +1 more source

Primary state standard of the unit of inductance ? The henry

Measurement Techniques, 1972
The standard of the henry is the first (with respect to its approval) state standard in the range of inductance, capacitance, and resistance measurements.
openaire   +1 more source

Contemporary status of the state primary standard of the unit of mass

Measurement Techniques, 2009
The results of studies designed to improve the State Primary Standard of the unit of mass are considered. In terms of precision of reproduction and stability, the Russian prototype of the kilogram corresponds to the best world analog. Modern electronic comparators of the mass from the world’s leading firms are introduced into the standard.
Yu. I. Kamenskikh, V. S. Snegov
openaire   +1 more source

Coulometric device within a unit for state primary standards

Measurement Techniques, 2010
The operating principle and composition of the VNIIFTRI coulometric device is based on a three-chamber electrochemical cell of vertical construction that is part of the set of primary state standards for the pH scale and indices of pX ion indices. Metrological characteristics of the device ensure reproducibility of pH in the standard with an error of ...
M. A. Artemenkov, O. V. Karpov, V. D. Kutovoi, V. A. Zvezdina   +3 more
openaire   +1 more source

The state primary standard for the unit of mean laser power

Measurement Techniques, 2007
An upgraded state primary standard is considered for the unit of mean laser radiation power. The technical characteristics and working principle are given.
V. S. Ivanov, A. F. Kotyuk, A. A. Liberman, S. A. Moskalyuk, M. V. Ulanovskii   +4 more
openaire   +1 more source