| 摘要 |
PURPOSE:To obtain a number of isotropic ferrite magnets which are uniformly magnetized by a magnetizing operation by a method wherein an unmagnetized isotropic ferrite magnet group is pinched by the already-magnetized dummy magnets made of the same material. CONSTITUTION:Unmagnetized rod-like isotropic ferrite magnets 10, which are tightly arranged in a hollow solenoid coil 12, are arranged and already magnetized dummy magnets 16 made of the same material are arranged in close contact with each other and the isotropic ferrite magnets 10 on both ends of coil aperture side. The dummy magnets 16, which are the same shape as the isotropic ferrite magnets 10, are used and the direction of magnetization is coincided with the direction of magnetization. A magnetic field becomes a linear form by the solenoid coil 12, and a uniform magnetization can be obtained on the anisotropic ferrite magnet 10. |
