| 摘要 |
PURPOSE:To improve the surface magnetic fields of the magnet use face in a long magnet where the longitudinal length is longer than the diameter of the end face. CONSTITUTION:The working area of a high surface magnetic field is gotten by making working areas, where the directions of the orientation of magnetic particles focus, at the parts of the outlines in the cross sections which cross the longitudinal directions of long magnets, and placing those working areas in a row in the above longitudinal direction. |
