Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The Design of the NEW NIST-4 Watt Balance



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


The design of the new permanent-magnet driven watt balance and novel mechanical features will demonstrate the high-precision capabilities of a large complex mass measurement system with expected overall uncertainties on the order of 3 parts in 10^8.
Proceedings Title
CPEM 2014 Digest
Conference Dates
August 24-29, 2014
Conference Location
Rio De Janeiro
Conference Title
CPEM 2014


mass, watt balance, kilogram, flexure, permanent magnet


Chao, L. , Schlamminger, S. , Seifert, F. , Cao, Y. , El, D. , Newell, D. and Pratt, J. (2014), The Design of the NEW NIST-4 Watt Balance, CPEM 2014 Digest, Rio De Janeiro, -1, [online], (Accessed May 28, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created August 24, 2014, Updated November 29, 2019