| 摘要 |
PROBLEM TO BE SOLVED: To form multiple magnetic poles in the peripheral and axial directions causing no diviation at all an a cylindrical or circular magnetized bodies. SOLUTION: A cylindrical magnetized body 1 is rotatably supported around the axis thereof by the first and second magnetized body supporters 2, 3, a magnetizing head 5 is arranged so that two magnetizing poles thereof may oppose to the peripheral direction of the magnetized body 1 to be close or in contact with the peripheral surface of the magnetized body 1. Next, the magnetized body 1 is rotated by a rotary driver 4 while the magnetizing head 5 is shifted to the axial direction by a head driver 6 at this time, the exciting coil of the magnetizing head 5 is supplied with AC in a specific frequency as a magnetizing current. Finally, the revolution of the driving motor of the rotary driver 4 is to be set up to be integer times of the revolution of the magnetized body 1. |
