Title :
Can superconductivity contribute to the determination of the absolute ampere?
Author :
Sullivan, D.B. ; Frederick, N.V.
Author_Institution :
IEEE TMAG
fDate :
1/1/1977 12:00:00 AM
Abstract :
The absolute ampere is shown to be derivable from a static levitation of a superconducting mass. The magnetic force which balances the gravitational force can be obtained from a combination of inductance and linear position measurements. A unique feature of the concept is the use of the calculable capacitor for the inductance measurements. Besides the possibility of this specific approach other concepts involving superconductivity are also discussed.
Keywords :
Current measurement; Magnetic levitation; Measurement units; Superconducting devices; Equations; Gravity; Inductance; Magnetic fields; Magnetic forces; Magnetic levitation; Position measurement; Superconducting coils; Superconductivity; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1977.1059483