Bi- or multi-polar permanent magnet ring magnetising device - induces current pulse in conductor rings on ends or sides of magnet ring whose magnetic field magnetises ring

摘要

The device magnetises bipolar permanent magnet rings with concentric north/south poles at their ends, or multipolar rings with poles on the sides. Current pulses are induced in annular current conductors (2,3) arranged on the end surfaces or sides of the permanent magnet ring (1). The magnetic field of the induced current causes the ring (1) to be magnetised. The secondary pulse in the conductors (2,3) is generated by flux variation of a primary pulse in a primary pulse coil (4) inside the magnet ring (1). With multipolar magnet rings (1) a primary pulse is also generated in an outer coil around the ring (1). USE/ADVANTAGE - For magnetic bearing. Enables magnetisation of one-part rings with two concentric poles or of tubular multipolar rings on side surfaces.