Title :
The concept of a pressure balance based watt balance
Author :
Sutton, C.M. ; Fitzgerald, M.P. ; Jack, D.G.
Author_Institution :
Meas. Stand. Lab. of New Zealand, Ind. Res. Ltd., Lower Hutt, New Zealand
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.
Keywords :
balances; coils; force measurement; magnetic fields; pressure measurement; Planck constant measurement; coil; gas operated pressure balance; magnetic field; non-artefact realisation; watt balance; Coils; Electromagnetic forces; Gravity; Magnetic field measurement; Magnetic fields; Measurement standards; Pistons; Pressure measurement; Testing; Uncertainty;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544277
