MAGNETIZER WITH HEMI-SPHERE, HEMI-SPHERICAL SHELL OR SPHERE TYPE PERMANENT MAGNET FOR PREVENTING OVERHANG OF COIL

摘要

PURPOSE: A magnetizer is provided to prevent an overhang of a coil by forming a permanent magnet into the shape of hemi-sphere, hemi-spherical shell or sphere. CONSTITUTION: A magnetizer comprises a case(40); a hemi-spherical permanent magnet(10) arranged in the case; a plurality of non-magnet members(20) arranged beneath the permanent magnet; and coils(30) arranged in each of the non-magnet members. The flux distribution changes in accordance with the structure of the non-magnet members.