Patent ID: 7750524
Filing Date: 2010-07-06
Classification: H01F,H02K,Y10S

Abstract:
1. A magnetizing device for a superconductor, comprising: a bulk superconductor; a coolant chamber configured to cool the superconductor down to or below a critical temperature at which the transition to a superconducting state occurs; magnetic field generating means that generates a magnetic field equal to or higher than a critical magnetic field in which the intrusion of a magnetic flux into the superconductor starts, the magnetic field generating means including a pair of opposed coils fixed so as to sandwich the superconductor such that the central axis of the superconductor is perpendicular to a surface of each coil, the surface of each coil being flat and each coil spirally winding toward the center thereof, the coils generating a conical-shaped magnetic field distribution therebetween; and position modification means capable of modifying the relative positional relationships between the superconductor and the pair of coils.