History and progress on accurate measurements of the Planck constant

R Steiner - Reports on Progress in Physics, 2012 - iopscience.iop.org
The measurement of the Planck constant, h, is entering a new phase. The CODATA 2010
recommended value is 6.626 069 57× 10− 34 J s, but it has been a long road, and the trip is …

Design of the new METAS watt balance experiment Mark II

H Baumann, A Eichenberger, F Cosandier… - Metrologia, 2013 - iopscience.iop.org
The kilogram is the last unit of the international system of units (SI) still based on a material
artefact, the international prototype of the kilogram (IPK). The comparisons made in the last …

First determination of the Planck constant using the LNE watt balance

M Thomas, P Espel, D Ziane, P Pinot, P Juncar… - Metrologia, 2015 - iopscience.iop.org
After separate developments of the different elements with continuous characterizations and
improvements, the LNE watt balance has been assembled. This paper describes the system …

Minimization of the coil movement of the LNE watt balance during weighing mode and estimation of parasitic forces and torques involved

M Thomas, P Espel, Y Briand, G Genevès, F Bielsa… - Metrologia, 2014 - iopscience.iop.org
Alignments of watt balance experiments are necessary to achieve a relative uncertainty at a
level of few parts in 10 8. This paper briefly describes the LNE watt balance and …

Détermination de la constante de Planck au moyen d'une balance du watt

M Thomas - 2015 - theses.hal.science
Dans l'optique d'une modification du SI fondée sur la valeur de constantes fondamentales
de la physique, le LCM-LNE/CNAM a développé une expérience de balance du watt, de …

Accelerators Magnet R&D; Programme at CERN

D Tommasini, L Rossi, L Bottura, G de Rijk - Conf. Proc., 2012 - cds.cern.ch
The exploitation and evolution of the CERN accelerator complex pose a continuous
challenge for magnet engineers. Superconducting and resistive magnets have a …