Title :
Survey of planck constant measurements
Author :
De Mirandés, Estefanía
Author_Institution :
Bur. Int. des Poids et Mesures (BIPM), Pavillon de Breteuil, Sevres, France
Abstract :
The kilogram, unit of mass, is the last base unit of the International System of Units still defined in terms of a material artifact. A redefinition of the kilogram in terms of an invariant of nature, the Planck constant, is expected in the near future. A review of the present status of the experiments opening the way to this new definition will be presented.
Keywords :
constants; measurement standards; units (measurement); Planck constant measurement; international system of unit; kilogram; material artifact; Atomic measurements; Calibration; Current measurement; Metrology; Silicon; Uncertainty; Avogadro project; Planck constant; SI; fundamental constants; kilogram; watt balance;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250632
