Extending the Temperature Range of the National Primary Standard for the Unit of the Thermal Linear Expansion Coefficient

T. A. Kompan; S. V. Kondrat’ev; A. S. Korenev; N. F. Pukhov; F. M. Inochkin; S. K. Kruglov; I. G. Bronshtein

doi:10.1007/s11018-016-0896-2

Extending the Temperature Range of the National Primary Standard for the Unit of the Thermal Linear Expansion Coefficient

Authors: Kompan T.A.¹, Kondrat’ev S.V.¹, Korenev A.S.¹, Pukhov N.F.¹, Inochkin F.M.², Kruglov S.K.², Bronshtein I.G.³
Affiliations:
1. Mendeleev All-Russia Research Institute of Metrology (VNIIM)
2. St. Petersburg Polytechnic University
3. St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO)
Issue: Vol 58, No 12 (2016)
Pages: 1341-1346
Section: Thermal Measurements
URL: https://bakhtiniada.ru/0543-1972/article/view/245629
DOI: https://doi.org/10.1007/s11018-016-0896-2
ID: 245629

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Abstract

Work on improving the national primary standard for the unit of the coefficient of linear thermal expansion for solids in order to extend the temperature range from 1800 to 3000 K is described. The composition and metrological characteristics of the standard are discussed, as well as methods for measuring the elongation of test samples and an improved system for transfer of the unit from the standard to working means of measurement.