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Milligram Mass Metrology Using Electrostatics

Published

Author(s)

Gordon A. Shaw, John A. Kramar

Abstract

— Although mass has historically been defined using an artifact standard, other means of realization are possible. One alternative approach employs a precision electromechanical balance, using the SI electrical units to derive a force used to measure the weight of a mass artifact. The NIST Electrostatic Force Balance (EFB) incorporates SI-traceable voltage, displacement and capacitance measurements, allowing the traceable measurement of electrostatic force that can be used in conjunction with local gravity to arrive at mass. This article briefly describes this weighing process, its associated uncertainty, and context within the impending redefinition of the SI.
Proceedings Title
IEEE Proceedings
Conference Dates
August 24-29, 2014
Conference Location
Rio de Janeiro
Conference Title
CPEM 2014

Keywords

metrology, kilogram, milligram, electrostatic force balance, SI, precision measurement

Citation

Shaw, G. and Kramar, J. (2014), Milligram Mass Metrology Using Electrostatics, IEEE Proceedings, Rio de Janeiro, -1 (Accessed April 17, 2024)
Created August 25, 2014, Updated February 19, 2017