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Measurement Techniques

, Volume 50, Issue 1, pp 1–6 | Cite as

Fundamental physical constants and systems of units for physical quantities

  • S. A. Kononogov
Fundamental Problems in Metrology
  • 32 Downloads

Abstract

Fundamental questions of contemporary metrology connected with redefinition of the basic units of physical quantities are discussed. Some new definitions of the kilogram, ampere, Kelvin, and mole are suggested and their consequences are analysed. The possibility of fixing some fundamental physical constants at the level of accuracy contemporary for 2011 is considered. Alongside the practical system of units, use of a fundamental (theoretical) system is proposed. The importance is noted of considering possible variations of physical constants for a fundamental system of units, whereas in practical metrology these variations are not currently essential.

Key words

metrology units of physical quantities international system of units fundamental physical constants 

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • S. A. Kononogov
    • 1
  1. 1.All-Russia Research Institute of Metrological ServicesRussia

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