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Temperature scale in the range from 692.67 K to 1234.93 K: construction by infrared radiation
https://doi.org/10.32446/0368-1025it.2022-2-61-65
Abstract
The methodology of constructing of temperature scale in the range 692,67–1234,93 K was described. It’s based in the way of the reproduction of a temperature unit by absolutely black body emitters based on the reference points of pure metals of zinc, aluminum, silver and further transferring of the unit of the temperature to a variable temperatures absolutely black body emitter of using a pyrometer-comparator. Both of emitters are absolutely black bodies. Interpolation of values of using pyrometer-comparator performs by Plank law. Sources of uncertainties were analyzed and budget of uncertainties of reproduction of the unit of temperature kelvin by the radiation method was given. Measurement uncertainty of the emitter’s (absolutely black body) temperature connected with pyrometercomparator using is (1.99–2.94)·10–1 °C, and it allows to use this pyrometer for thermodynamic temperature scale constructing.
About the Authors
L. A. Nazarenko
National scientific center “Institute of metrology”
Ukraine
Ukraine
Leonid A. Nazarenko
Kharkov
P. I. Neyezmakov
National scientific center “Institute of metrology”
Ukraine
Ukraine
Pavlo I. Neyezmakov
Kharkov
R. V. Pushchin
National scientific center “Institute of metrology”
Ukraine
Ukraine
Roman V. Pushchin
Kharkov
S. V. Fil
National scientific center “Institute of metrology”
Ukraine
Ukraine
Svitlana V. Fil
Kharkov
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Review
For citations:
Nazarenko L.A., Neyezmakov P.I., Pushchin R.V., Fil S.V. Temperature scale in the range from 692.67 K to 1234.93 K: construction by infrared radiation. Izmeritel`naya Tekhnika. 2022;(2):61-65. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-2-61-65
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