The distribution of the electric current in a watt-balance coil

Abstract

In the watt balance experiments, separate measurements of the magnetic and electromotive forces in a coil in a magnetic field enable a virtual comparison between mechanical and electric powers to be carried out, which lead to an accurate measurement of the Planck constant. This paper investigates the three-dimensional nature of the coil-field interaction and describes the balance operation by a continuous three-dimensional model.

6 pages, five figure, submitted to Metrologia

References in corpus (2)

• An accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal
• Precision measurements of the Planck and Avogadro constants