Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

4 Issues per year

IMPACT FACTOR 2016: 1.598

CiteScore 2016: 1.58

SCImago Journal Rank (SJR) 2016: 0.460
Source Normalized Impact per Paper (SNIP) 2016: 1.228

Open Access
See all formats and pricing
More options …
Volume 17, Issue 2


The Quantum SI - Towards the New Systems of Units

Waldemar Nawrocki
  • Faculty of Electronics and Telecommunications, Poznan University of Technology, Polanka 3, 60-965 Poznan, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2010-11-01 | DOI: https://doi.org/10.2478/v10178-010-0013-9

The Quantum SI - Towards the New Systems of Units

The possibility or even necessity of revising definitions of some of the base units of the present SI has been discussed over the past 15 years. The last General Conference of Weights and Measures (2007) recommended to redefine the kilogram, the ampere, the kelvin, and the mole using fixed values of the fundamental constants by the time of the next General Conference in 2011. This paper is a review of proposals of new definitions of units of mentioned quantities and arguments voting for particular variants of definitions. Most relevant papers for this review have been published by Metrologia, the international journal appointed at the BIPM, and many other useful pieces of information are available on www pages of the BIPM. The author notes that not only new definitions have been discussed but as well as the set of the base units of the SI. It means a replacement of the ampere by the volt or the kelvin by the joule. Decisions concerning new definitions are not made and the discussions are still open.

Keywords: SI system; base units; quantum standards

  • www1.bipm.org/en/

  • Petley, B. W. (1988). The Fundamental Physical Constants and the Frontier of Measurements. Adam Hilger, Bristol.Google Scholar

  • Quinn, T. J. (1995). Basic units of the Système international d'unités, their accuracy, dissemination and international traceability. Metrologia, 31, 515-527.CrossrefGoogle Scholar

  • Nawrocki, W. (2006). Revising the SI: the joule to replace the kelvin as a base unit. Metrol. Meas. Syst., 13(2), 171-181.Google Scholar

  • Nawrocki, W. (2006). Joule instead of kelvin in a set of base units. In Proceedings of 18th IMEKO World Congress. Rio de Janeiro. CD.Google Scholar

  • Feynman, R. P., Leighton, R. B., Sands, M. (1963). The Feynman Lectures on Physics. California Institute of Technology, 1.Google Scholar

  • Mills, I. M., Mohr, T. J., Quinn, Taylor, B. N., Williams, E. R. (2006). Redefinition of the kilogram, ampere, kelvin and mole: a proposed approach to implementing CIPM recommendation 1 (CI-2005). Metrologia, 43, 227-246.Google Scholar

  • 2006 CODATA recommended values www.nist.gov/physlab

  • Davies, R. S. (2008). Redefining the kilogram: how and why? MAPAN Journal of Metrology Society of India, 23, 131-138.Google Scholar

  • Borde, Ch.J. (2005). Base units of the SI, fundamental constants and a modern quantum physics. Transactions Royal Society A, 363, 2177-2180.Google Scholar

  • Becker, P., de Bierve, P., Fujii, K., Gläser, M., Inglis, B., Luebbig, H., Mana, G. (2007). Considerations on future redefinitions of the kilogram, the mole and other units. Metrologia, 44, 1-14.CrossrefWeb of ScienceGoogle Scholar

  • Gläser, M. (2007). New definitions of the kilogram and the mole. Presentation on 10th meeting of the CCM. www.bipm.org/cc www.bipm.org/cc

  • Williams, E. (2007). Proposed changes to the SI, their impact to fundamental constants, and other SI units. Presentation on 10th meeting of the CCM. www.bipm.org/cc www.bipm.org/cc

  • Proposed changes to the International System of Units (SI0, Recommendation E1 by CCEM/2007-44 and CCEM/2009-18). www.bipm.org/CCEM

  • Fischer, J., Gerasimov, S., Hill, K. D., Machin, G., Moldover, M. R., Pitre, R., Steur, P., Stock, M., Tamura, O., Ugur, H., White, D. R., Yang, I., Zhang, J. (2007). Preparative steps towards the new definition of the kelvin in terms of the Boltzmann constant. Intern. Journal of Thermophysics, 28, 1753-1765.Web of ScienceGoogle Scholar

  • Lipiński, L., Szmyrka-Grzebyk, A. (2008). Proposals for the new definition of the kelvin. Metrol. Meas. Syst., 15(3), 227-234.Google Scholar

  • Kalinin, M. I., Kononogov, S. A. (2010). Redefinition of the unit of thermodynamic temperature in the international system of units. High Temperature, 48, 23-28.Web of ScienceGoogle Scholar

  • Bumai, Y. A., Vaskou, A. S., Kononenko, V. K. (2010). Measurement and analysis of thermal parameters and efficiency of laser heterostructures and light emitting diodes. Metrol. Meas. Syst., 17(1), 39-46.Google Scholar

  • Leonard, B. P. (2007). The atomic-scale unit, entity: key to a direct and easily understood definition of the SI base unit for amount of substance. Metrologia, 44, 402-406.Web of ScienceCrossrefGoogle Scholar

  • Leonard, B. P. (2010). Comments on recent proposals for redefining the mole and kilogram. Metrologia, 47, L5-L8.Web of ScienceGoogle Scholar

  • Robinson, I. A. (2009). Toward the redefinition of the kilogram: Measurements of Planck's constant using watt balances. IEEE Transactions on Instrumentation and Measurement, 58, 942-948.Web of ScienceGoogle Scholar

  • Cabiati, F., Bich, W. (2009). Thoughts on a changing SI. Metrologia, 46, 457-466.CrossrefWeb of ScienceGoogle Scholar

About the article

Published Online: 2010-11-01

Published in Print: 2010-01-01

Citation Information: Metrology and Measurement Systems, Volume 17, Issue 2, Pages 139–150, ISSN (Print) 0860-8229, DOI: https://doi.org/10.2478/v10178-010-0013-9.

Export Citation

This content is open access.

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

Comments (0)

Please log in or register to comment.
Log in