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Experimental Noise Sources in the NIST Watt Balance



Richard L. Steiner, David B. Newell, Edwin R. Williams


The present NIST Watt Balance has a relative combined standard uncertainty of about 145 nW/W. The final results of this phase of the experiment are presented. Improvements in the Type B (nonstatistical) uncertainty contributions, along with several correction factors and noise sources, are also discussed.
Proceedings Title
Tech. Dig., Conf. on Precision Electromagnetic Measurements
Conference Dates
July 6-10, 1998
Conference Location
Washington, DC


fundamental constants, planck's constant, SI watt, kilogram monitoring


Steiner, R. , Newell, D. and Williams, E. (1998), Experimental Noise Sources in the NIST Watt Balance, Tech. Dig., Conf. on Precision Electromagnetic Measurements, Washington, DC, [online], (Accessed July 12, 2024)


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Created June 30, 1998, Updated October 12, 2021