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 …

The watt or Kibble balance: a technique for implementing the new SI definition of the unit of mass

IA Robinson, S Schlamminger - Metrologia, 2016 - iopscience.iop.org
The redefinition of the SI unit of mass in terms of a fixed value of the Planck constant has
been made possible by the Kibble balance, previously known as the watt balance. Once the …

Determination of the Planck constant by means of a watt balance

A Eichenberger, G Genevès, P Gournay - The European Physical Journal …, 2009 - Springer
The kilogram is the only base unit of the Système International d'unités (SI) still defined by a
material artefact. Regarding the past evolution of the SI and the poor knowledge of the …

A determination of the Planck constant using the LNE Kibble balance in air

M Thomas, D Ziane, P Pinot, R Karcher, A Imanaliev… - Metrologia, 2017 - iopscience.iop.org
A determination of the Planck constant h using the LNE Kibble balance in air was carried out
in the spring of 2017. Substantial improvements since 2014, chiefly related to the mass …

The BNM watt balance project

G Genevès, P Gournay, A Gosset… - IEEE Transactions …, 2005 - ieeexplore.ieee.org
A new Watt balance project is now in progress at the Bureau National de Metrologie (BNM),
Paris, France. In this paper, the general configuration and the main parts of the experimental …

Design of the KRISS watt balance

D Kim, BC Woo, KC Lee, KB Choi, JA Kim, JW Kim… - Metrologia, 2014 - iopscience.iop.org
We report the design of the KRISS watt balance, which includes a magnet, a guiding stage
and a coil position measurement system. The KRISS watt balance incorporates a closed …

The Kibble balance and the kilogram

S Schlamminger, D Haddad - Comptes …, 2019 - comptes-rendus.academie-sciences …
The Kibble balance and the kilogram Page 1 CR Physique 20 (2019) 55–63 Contents lists
available at ScienceDirect Comptes Rendus Physique www.sciencedirect.com The new …

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 …

Construction, measurement, shimming, and performance of the NIST-4 magnet system

F Seifert, A Panna, S Li, B Han, L Chao… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
The magnet system is one of the key elements of a watt balance. For the new watt balance
currently under construction at the National Institute of Standards and Technology, a …

The irony of the magnet system for Kibble balances—a review

S Li, S Schlamminger - Metrologia, 2022 - iopscience.iop.org
The magnet system is an essential component of the Kibble balance, a device that is used to
realize the unit of mass. It is the source of the magnetic flux, and its importance is captured in …