Title :
Improvement of the superconducting magnetic levitation system for the determination of the magnetic flux quantum
Author :
Shiota, Fuyuhiko ; Nakayama, K. ; Nezu, Yoshiaki ; Endo, T. ; Sakamoto, Y. ; Kikuzawa, Masahiko ; Hara, Ko
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
fDate :
4/1/1989 12:00:00 AM
Abstract :
An improvement of the preliminary superconducting magnetic levitation system for the absolute determination of the magnetic flux quantum is described. This improvement includes the development of the flux-up method to determine the flux in terms of the Josephson voltage. The improvement is essential for the determination of the magnetic flux quantum as well as of the coil current, in terms of the Josephson voltage and quantized Hall resistance
Keywords :
Josephson effect; constants; magnetic flux; magnetic levitation; magnetic variables measurement; quantum Hall effect; superconducting junction devices; Josephson voltage; coil current; flux-up method; magnetic flux quantum; quantized Hall resistance; superconducting magnetic levitation; Calibration; Immune system; Josephson junctions; Laboratories; Magnetic flux; Magnetic levitation; Metrology; Superconducting coils; Superconducting magnets; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
