Results 251 to 260 of about 27,759,159 (289)
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Ukrainian Metrological Journal
Phase measurements are necessary for determining main parameters of the oscillatory process in complex electrical networks. Most often, it is precisely the phase shift angle (PSA) between two oscillatory processes of the same frequency that is measured.
Oleh Velychko, Yulia Kulish
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Phase measurements are necessary for determining main parameters of the oscillatory process in complex electrical networks. Most often, it is precisely the phase shift angle (PSA) between two oscillatory processes of the same frequency that is measured.
Oleh Velychko, Yulia Kulish
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Measurement Techniques, 2015
State Primary Standard GET 200–2012 of the units of measurement of volumes of digital information transmitted via Internet and by telephone is described. A method of generation of reference files is set forth. A technique of estimating the integrity of reference files is proposed.
V. N. Zhogun, V. N. Shekhovtsov
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State Primary Standard GET 200–2012 of the units of measurement of volumes of digital information transmitted via Internet and by telephone is described. A method of generation of reference files is set forth. A technique of estimating the integrity of reference files is proposed.
V. N. Zhogun, V. N. Shekhovtsov
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Measurement Techniques, 2020
GET 183–2019, the State Primary Special Standard of the unit of length in the area of measurements of the parameters of deviations from flatness of optical surfaces, is presented. The standard supports the reproduction, storage, and transmission of the unit of length in the range 0.002–2.000 μm for optical surfaces measuring 50–280 mm in dimension.
D. A. Novikov +3 more
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GET 183–2019, the State Primary Special Standard of the unit of length in the area of measurements of the parameters of deviations from flatness of optical surfaces, is presented. The standard supports the reproduction, storage, and transmission of the unit of length in the range 0.002–2.000 μm for optical surfaces measuring 50–280 mm in dimension.
D. A. Novikov +3 more
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Measurement Techniques, 1986
It has been necessary to revise GOST 8.018-75 and to devise a new state primary standard (SPS) for the unit of linear expansion coefficient (LEC) on account of the extending temperature ranges used with materials, the general use of low-expansion materials, and tightening requirements on accuracy in measuring LEC.
T. I. Malyutina +4 more
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It has been necessary to revise GOST 8.018-75 and to devise a new state primary standard (SPS) for the unit of linear expansion coefficient (LEC) on account of the extending temperature ranges used with materials, the general use of low-expansion materials, and tightening requirements on accuracy in measuring LEC.
T. I. Malyutina +4 more
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Izmeritel`naya Tekhnika
In many areas of science and technology, there is a task to measure the optical and geometric characteristics of thin fi lms. The need to ensure the uniformity of measurements in this area led to the creation of the State primary standard of complex refractive index units GET 203-2012.
G. N. Vishnyakov +2 more
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In many areas of science and technology, there is a task to measure the optical and geometric characteristics of thin fi lms. The need to ensure the uniformity of measurements in this area led to the creation of the State primary standard of complex refractive index units GET 203-2012.
G. N. Vishnyakov +2 more
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Izmeritel`naya Tekhnika
The metrological support of optical-electronic means of measuring spatial coordinates is described. To meet modern consumer requirements for the accuracy of measurements of spatial coordinates with electronic tacheometers and their analogues (laser scanners, absolute trackers), the State primary special standard of the unit of length GET 199-2024 ...
S. I. Donchenko +4 more
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The metrological support of optical-electronic means of measuring spatial coordinates is described. To meet modern consumer requirements for the accuracy of measurements of spatial coordinates with electronic tacheometers and their analogues (laser scanners, absolute trackers), the State primary special standard of the unit of length GET 199-2024 ...
S. I. Donchenko +4 more
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Ukrainian Metrological Journal
The paper discusses the results of a study of metrological characteristics of the state primary measurement standard of volume flow and mass consumption of liquid, as well as the volume and mass of liquid flowing through pipelines (DETU 03-04-04). The study was conducted at the National Scientific Centre “Institute of Metrology” in preparation for ...
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The paper discusses the results of a study of metrological characteristics of the state primary measurement standard of volume flow and mass consumption of liquid, as well as the volume and mass of liquid flowing through pipelines (DETU 03-04-04). The study was conducted at the National Scientific Centre “Institute of Metrology” in preparation for ...
openaire +3 more sources