Title | Coil correction for oscillatory calibration of a watt balance |
Publication Type | Conference Paper |
Year of Publication | 2012 |
Authors | Jones, K., Christian L.A., and Sutton C.M. |
Conference Name | CPEM Digest (Conference on Precision Electromagnetic Measurements) |
Date Published | 2012 |
Keywords | Ac 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 |
Abstract | An 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. |
URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84866789433&partnerID=40&md5=a67256f3cd31a3f60d3c726d4b03476c |
DOI | 10.1109/CPEM.2012.6250936 |