[HTML][HTML] The CODATA 2017 values of h, e, k, and NA for the revision of the SI

DB Newell, F Cabiati, J Fischer, K Fujii… - Metrologia, 2018 - iopscience.iop.org
Sufficient progress towards redefining the International System of Units (SI) in terms of exact
values of fundamental constants has been achieved. Exact values of the Planck constant h …

Data and analysis for the CODATA 2017 special fundamental constants adjustment

PJ Mohr, DB Newell, BN Taylor, E Tiesinga - Metrologia, 2018 - iopscience.iop.org
The special least-squares adjustment of the values of the fundamental constants, carried out
by the Committee on Data for Science and Technology (CODATA) in the summer of 2017, is …

The revision of the SI—the result of three decades of progress in metrology

M Stock, R Davis, E de Mirandés, MJT Milton - Metrologia, 2019 - iopscience.iop.org
On 16 November 2018 a revision of the International System of Units (the SI) was agreed by
the General Conference on Weights and Measures. The definitions of the base units were …

Single‐Electron Pumps and Quantum Current Metrology in the Revised SI

H Scherer, HW Schumacher - Annalen der Physik, 2019 - Wiley Online Library
The consequences of the revision of the International System of Units for electrical quantum
metrology are discussed herein. Possible applications of single‐electron transport pump …

A new 28Si single crystal: counting the atoms for the new kilogram definition

G Bartl, P Becker, B Beckhoff, H Bettin, E Beyer… - Metrologia, 2017 - iopscience.iop.org
A new single crystal from isotopically enriched silicon was used to determine the Avogadro
constant NA by the x-ray-crystal density method. The new crystal, named Si28-23Pr11, has 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 …

Impact of the latest generation of Josephson voltage standards in ac and dc electric metrology

A Rüfenacht, NE Flowers-Jacobs, SP Benz - Metrologia, 2018 - iopscience.iop.org
For decades, the quantum behavior of Josephson junctions has been employed as intrinsic
standards for voltage metrology. Conventional dc Josephson voltage standards have been …

The Planck-Balance—using a fixed value of the Planck constant to calibrate E1/E2-weights

C Rothleitner, J Schleichert, N Rogge… - Measurement …, 2018 - iopscience.iop.org
A balance is proposed, which allows the calibration of weights in a continuous range from 1
mg to 1 kg using a fixed value of the Planck constant, h. This so-called Planck-Balance (PB) …

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 …

The performance of the KIBB-g1 tabletop Kibble balance at NIST

L Chao, F Seifert, D Haddad, J Pratt, D Newell… - Metrologia, 2020 - iopscience.iop.org
A tabletop-sized Kibble balance (KIBB-g1) designed to directly realize mass at the gram-
level range with uncertainties on the order of parts in 10 6 has been developed at the …