731 Development of magnetic levitation driving method by rotating magnetic field

Abstract

In this research, it proposes the drive and levitation method by giving to alternating current magnetic flux to magnetic material disc. When the magnetic material disc receives the a.c. magnetic field, we can observe there are a phase difference and an axially attraction force between the impressed magnetic field and the magnetized disc. We executed the levitation drive experiment, and we achieved a steady levitation and the drive by controlling the amplitude of driving a.c.. We developed a new motor that achieved the drive and levitation with a single driving coil system and clarified this fundamental characteristic.