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TitleCoil correction for oscillatory calibration of a watt balance
Publication TypeConference Paper
Year of Publication2012
AuthorsJones, K., Christian L.A., and Sutton C.M.
Conference NameCPEM Digest (Conference on Precision Electromagnetic Measurements)
Date Published2012
KeywordsAc voltage, AC voltmeters, Coil current, Coil designs, Coils, Electric impedance, Electromagnetism, Magnetic circuits, Measurement standards, Oscillatory dynamics, Resultant forces, Self-capacitance, Test coils, Voltage measurement, Watt balance
AbstractAn oscillatory dynamic mode has been proposed for a watt balance and this mode relies on the measurement of an ac voltage to determine the factor γ that relates coil current to the resultant force on the coil. A correction is required to account for the effect of the impedance and self-capacitance of the coil and the admittances presented by the ac voltmeter. This paper calculates the correction for a test coil and highlights the magnet and coil design parameters that influence this correction. © 2012 IEEE.

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