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The Measurement of the Local Acceleration of Gravity for the NIST4 Watt Balance



David B. Newell, Jacques Liard, Leon S. Chao, Yusi A. Cao, Frank C. Seifert, Darine El Haddad, Jon R. Pratt, Stephan Schlamminger


A new watt balance is being constructed at NIST in preparation for the redefinition of the International System of Units and the realization of mass through an exact value of the Planck constant. We describe the procedures used and give results for the measurements of the local acceleration of gravity in the new watt balance facility.
Proceedings Title
CPEM 2014 Digest
Conference Dates
August 24-29, 2014
Conference Location
Rio de Janeiro
Conference Title
CPEM 2014


fundamental constants, Planck constant, gravity, international system of units, watt balance


Newell, D. , Liard, J. , Chao, L. , Cao, Y. , Seifert, F. , El, D. , Pratt, J. and Schlamminger, S. (2014), The Measurement of the Local Acceleration of Gravity for the NIST4 Watt Balance, CPEM 2014 Digest, Rio de Janeiro, -1, [online], (Accessed June 14, 2024)


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Created August 24, 2014, Updated November 29, 2019