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|Author(s):||Stephan Schlamminger; Darine El Haddad; Frank C. Seifert; Leon S. Chao; David B. Newell; Richard L. Steiner; Jon R. Pratt;|
|Title:||Determination of the Planck constant using a watt balance with a superconducting magnet system at the National Institute of Standards and Technology|
|Published:||March 31, 2014|
|Abstract:||In the past two years measurements were performed with a watt balance at the National Institute of Standards and Technology (NIST) to determine the Planck constant. A detailed analysis of these measurements and their uncertainties led to a value of h=6.626 069 88(38) x 10^-34 Js. The relative uncertainty is 57 x 10^-9 . This result is 154 x 10^-9 higher than h90|
|Pages:||pp. S15 - S24|
|Keywords:||Planck constant, electronic kilogram|
|Research Areas:||Weights & Measures|
|DOI:||http://dx.doi.org/10.1088/0026-1394/51/2/S15 (Note: May link to a non-U.S. Government webpage)|
|PDF version:||Click here to retrieve PDF version of paper (494KB)|