Title :
Experimental evaluation of the total shielding current in a bulk high-Tc superconductor [YBaCuO]
Author :
Tsuchimoto, M. ; Takaichi, H. ; Murakami, M.
Author_Institution :
Fac. of Eng., Hokkaido Univ., Sapporo, Japan
fDate :
3/1/1996 12:00:00 AM
Abstract :
Total shielding currents of a melt processed bulk high-Tc superconductor (HTS) are evaluated from the measured voltage of a Rogowski coil when a permanent magnet is moved towards the HTS. The total shielding current and the levitation force between the magnet and the HTS show rapid growth and decay depending on the speed of the magnet. The dynamic levitation force and the magnetic relaxation are discussed from the experimental results.
Keywords :
barium compounds; high-temperature superconductors; magnetic levitation; magnetic relaxation; magnetic shielding; superconducting coils; yttrium compounds; Rogowski coil; YBaCuO; bulk high-Tc superconductor; dynamic levitation force; magnetic relaxation; melt processing; total shielding current; Current measurement; Force measurement; High temperature superconductors; Magnetic flux; Magnetic levitation; Magnetic shielding; Permanent magnets; Superconducting coils; Superconducting magnets; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
