Title :
Evaluation of magnetically levitated spinning top and magnetic levitation with a bulk high Tc superconductor
Author_Institution :
Graduate Sch. of Eng., Hokkaido Univ., Sapporo, Japan
fDate :
5/1/1999 12:00:00 AM
Abstract :
Properties of a magnetically levitated spinning top are examined by experimental and numerical analyses. Summary of the experiment for undergraduate students are reported. Vertical levitation force is calculated with ring current model, and horizontal restoring force is evaluated from eddy current analysis with the finite element circuit method. Levitation of a magnet on a bulk high Tc superconductor is also discussed from comparison with the levitation of the spinning top
Keywords :
eddy currents; electrical engineering education; high-temperature superconductors; magnetic fields; magnetic forces; magnetic levitation; permanent magnets; student experiments; bulk high Tc superconductor; eddy current analysis; finite element circuit method; horizontal restoring force; magnetic levitation; magnetically levitated spinning top; ring current model; undergraduate student experiment; vertical levitation force; Coils; Eddy currents; Finite element methods; High temperature superconductors; Magnetic analysis; Magnetic field measurement; Magnetic levitation; Solenoids; Spinning; Superconducting magnets;
Journal_Title :
Magnetics, IEEE Transactions on
