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The concept of a pressure balance based watt balance

TitleThe concept of a pressure balance based watt balance
Publication TypeConference Paper
Year of Publication2010
AuthorsSutton, C. M., Fitzgerald M. P., and Jack D. G.
Conference NameCPEM Digest (Conference on Precision Electromagnetic Measurements)
KeywordsDynamic modes, Electromagnetism, High-precision, Magnetic fields, Planck constants, Precision balances, Pressure balance, Watt balance
Abstract The possibility of a watt balance based on gas-operated pressure balances is discussed in the context of both a measurement of the Planck constant and a non-artefact realisation of the kilogram. Gas-operated pressure balances meet several key requirements of a watt balance. For example, two pressure balances in combination act as a high-precision mass comparator for the weighing mode while a single pressure balance can be used to move the coil through the magnetic field in a strictly vertical manner for the dynamic mode. ©2010 IEEE.