MULTI-POLE MAGNETIZATION OF A MAGNET

摘要

A method of magnetizing a multi-pole magnet includes the steps of obtaining a magnetization coil having a magnetization zone and a central axis, and positioning a magnet within the magnetization zone. The method also includes positioning at least one pair of shield bodies including a conductive material proximate the first and second surfaces of the magnet, with the shield bodies being aligned together to cover both sides of at least a first region of magnet and expose both sides of at least a second region of the magnet. The method further includes energizing the magnetization coil to generate an applied magnetic field within the magnetization zone that is sufficient to induce eddy currents in the at least one pair of shield bodies and to magnetize the exposed second region of the magnet.

主权项

1. A method for forming a multi-pole magnet using a magnetization coil having a magnetization zone and a central axis and configured to generate a magnetic field within the magnetization zone having flux lines that are substantially parallel to the central axis, the method comprising:
using a shield body to magnetically shield a portion of a magnet located within the magnetization zone, the shield body being formed from a conductive material and with a thickness sufficient to allow for the inducement of eddy currents in accordance with the magnetic field; and using the magnetization coil to generate the magnetic field within the magnetization zone, the magnetic field having a field strength sufficient to magnetize an unshielded portion of the magnet and to induce eddy currents in the shield body that prevent magnetization of the shielded portion of the magnet.