The International Committee for Weights and Measures (CIPM), at its meeting in October 2017 followed the recommendation of the Consultative Committee for Units (CCU) on the redefinition of the kilogram, ampere, kelvin and mole. For the redefinition of the kelvin the Boltzmann constant will be fixed with the numerical value 1.380 649x10-23 JK-1. The relative standard uncertainty to be transferred to the thermodynamic temperature value of the triple point of water will be 3.7x10-7, corresponding to an uncertainty in temperature of 0.10 mK, sufficiently low for all practical purposes. With the redefinition of the kelvin the broad research activities of the temperature community on the determination of the Boltzmann constant have been very successfully completed. In the following, a review of the determinations of the Boltzmann constant k important for the new definition of the kelvin and performed in the last decade is given.

The Boltzmann Project / Fischer, J.; Fellmuth, B.; Gaiser, C.; Zandt, T.; Pitre, L.; Sparasci, F.; Plimmer, M. D.; de Podesta, M.; Underwood, R.; Sutton, G.; Machin, G.; Gavioso, R. M.; Madonna Ripa, D.; Steur, P. P. M.; Qu, J.; Feng, X. J.; Zhang, J.; Moldover, M. R.; Benz, S. P.; White, D. R.; Gianfrani, L.; Castrillo, A.; Moretti, L.; Darquié, B.; Moufarej, E.; Daussy, C.; Briaudeau, S.; Kozlova, O.; Risegari, L.; Segovia, J. J.; Martín, M. C.; del Campo, D.. - In: METROLOGIA. - ISSN 0026-1394. - 55:(2018), pp. 1-20.

The Boltzmann Project

R. M. Gavioso;D. Madonna Ripa;P. P. M. Steur;
2018

Abstract

The International Committee for Weights and Measures (CIPM), at its meeting in October 2017 followed the recommendation of the Consultative Committee for Units (CCU) on the redefinition of the kilogram, ampere, kelvin and mole. For the redefinition of the kelvin the Boltzmann constant will be fixed with the numerical value 1.380 649x10-23 JK-1. The relative standard uncertainty to be transferred to the thermodynamic temperature value of the triple point of water will be 3.7x10-7, corresponding to an uncertainty in temperature of 0.10 mK, sufficiently low for all practical purposes. With the redefinition of the kelvin the broad research activities of the temperature community on the determination of the Boltzmann constant have been very successfully completed. In the following, a review of the determinations of the Boltzmann constant k important for the new definition of the kelvin and performed in the last decade is given.
partially_open
File in questo prodotto:
File Dimensione Formato  
Fischer_et_al_Boltzmann_project_Metrologia_2018.pdf

non disponibili

Tipologia: Versione editoriale
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 2.46 MB
Formato Adobe PDF
2.46 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Fischer_et_al_Boltzmann_project_Metrologia_2018_accepted.pdf

accesso aperto

Tipologia: Documento in Post-print
Licenza: Creative Commons
Dimensione 1.4 MB
Formato Adobe PDF
1.4 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/59965
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 35
  • ???jsp.display-item.citation.isi??? 30
social impact