H Feshki Farahani - Islamic Azad University, Ashtian Branch
S.M Pedram Razi - Islamic Azad University, Tehran North

Permanent magnets due to their high energy production are widely used in a variety of electromagnetic devices. Such devices can be found in marine, aerospace, and robotic applications which require the minimization of weight and volume of the electro- magnetic devices. The coercively of some permanent magnets are high so the magnetizer is used for high magnetic field generation. The process of magnetization requires generation of intense magnetic fields in close proximity with the magnetic material to be magnetized. The fields must be produced for a short period of time of the order of a millisecond. The intense magnetic field is produced by passing a very heavy current through a coil. Different parameters such as core shape, core B-H curve, turn number, cross section of the air gap, magnet type, etc have been known to affect the magnetizer operation.

magnetizer, effective parameters, fixture,finite element method and ANSYS software