| 摘要 |
PURPOSE:To obtain satisfactory magnetic characteristic without magnetized unevenness, by arranging each current in the circumferential direction of each yoke, in the opposite directions to each other, when the inner peripheral side and the outer peripheral side of the end face of a magnet are magnetized at the same time by using separate yokes. CONSTITUTION:When respectively different magnetic poles are magnetized on the inner peripheral side and the outer peripheral side of the end face of a ring-shaped or disc-shaped magnet 1, then magnetizing yokes 3 and 4 (a magnetizing yoke 3 for forming field system,and a magnetizing yoke 4 for forming a frequency generator) winding up the inner peripheral side and the outer peripheral side with respectively separate magnetizing conductors are arranged to be confronted together. The peripheral sides are magnetized with electrical conduction at the same time so that current on the peripheral face of the magnetizing yoke 3 on the inner peripheral side and current on the peripheral face of the magnetizing yoke 4 on the outer peripheral side may be arranged in the opposite directions to each other. As a result, the magnetized unevenness of the magnet 1 is not generated, and the magnetic characteristic can be improved. |
