THE METAS WATT BALANCE MARK II: FIRST RESULTS

Henri Baumann, A. L. Eichenberger, B. Jeckelmann, R. Clavel, D. Reber, D. Tommasini

Abstract

It is nowadays widely accepted, that the future definition of the kilogram will be based on the Planck constant <i>h</i>. A promising experimental approach is the so called watt balance. The Federal Institute of Metrology METAS is developing the watt balance Mark II apparatus. This paper describes the design of the experiment as well as some experimental results. Considering the experimental progress, first results of the Planck constant, should be available at the time of the conference.

Keywords

Planck constant, Watt balance, kilogram, International System of Units (SI)

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IMEKO-WC-2015-TC7-177.pdf

DOI

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IMEKO TC

TC7 - Measurement Science

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