The design and analysis of axial field multipole impulse magnetizing fixtures

A methodology for the design of fixtures for the multipole magnetization of axially magnetized permanent magnet rings is presented. The methodology, w hich is based on three-dimensional analytical field calculation techniques, embraces the calculation of the fixture electrical parameters, the electri cal simulation of the fixture performance and the calculation of the level of saturation achieved in the permanent magnet. The methodology is validate d by means of an experimental case study on a 6 pole isotropic NdFeB magnet ring. (C) 1998 American Institute of Physics. [S0021-8979(98)36211-8].