Electromagnetic tracking system using rotating permanent magnets for field generation

Abstract

A system includes a magnetic field transmitter assembly. The magnetic field transmitter assembly includes an enclosure, a magnet positioned within the enclosure, and a plurality of coils wrapped around the enclosure. The plurality of coils are configured to be energized to rotate the magnet In certain embodiments, the plurality of coils include a first set of windings and a second set of windings where the first set of windings is configured to generate a first magnetic field in a first direction and where the second set of windings is configured to generate a second magnetic field in a second direction different than the first direction.

Dependencies are inferred from the claim text.