DocumentCode
3476332
Title
Results from the METAS watt balance
Author
Eichenberger, A.L. ; Baumann, H. ; Jeanneret, B. ; Jeckelmann, B.
Author_Institution
Fed. Office of Metrol. METAS, Bern-Wabern, Switzerland
fYear
2010
fDate
13-18 June 2010
Firstpage
105
Lastpage
106
Abstract
The METAS watt balance project has been in operation for 10 years. After different improvements and modifications, the present setup allows a reproducibility for a two weeks measurement series of 0.05 × 10-6 W/W. The analysis of several measurement campaigns is underway to produce a value of the Planck´s constant h in the near future.
Keywords
balances; mass measurement; METAS watt balance project; Planck constant; Coils; Force measurement; Laser beams; Laser stability; Magnetic levitation; Mechanical variables measurement; Mirrors; Optical detectors; Optical devices; Reproducibility of results;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location
Daejeon
Print_ISBN
978-1-4244-6795-2
Type
conf
DOI
10.1109/CPEM.2010.5544254
Filename
5544254
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