Title :
The present watt balance: a measure of its resolution
Author :
Olsen, P.T. ; Steiner, R.L. ; Jones, G.R. ; Williams, E.R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
fDate :
June 27 1994-July 1 1994
Abstract :
It was possible to operate the watt balance in the normal mode, but with the magnetic field reduced by more than six orders of magnitude. This mode of operation allowed the investigation of possible sources of systematic errors not specifically connected with the magnetic field, but rather with the balance environment. This measurement revealed a general lack of environmental effects and indicated an upper limit of resolution less than thirty parts per billion for a potential watt evaluation.<>
Keywords :
balances; coils; electric current measurement; force measurement; measurement standards; power measurement; units (measurement); velocity measurement; voltage measurement; balance environment; environmental effects; magnetic field; systematic errors; watt balance; Coils; Collision mitigation; Current measurement; Force measurement; Magnetic field measurement; Magnetic levitation; NIST; Superconducting magnets; Velocity measurement; Voltage measurement;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333181
