Researcher's Information

Professor

UENO, Satoshi

Mechanical Engineering

Development of magnetic levitation/ magnetic bearing system

Magnetic levitation/magnetic bearings are used in systems that support objects or rotating shaft without contact through use of magnetic force. It has various favorable characteristics: no friction or abrasions, supports high-speed rotation, low loss, long lifetime, usable in vacuums or in ultralow temperature environments, and supports advanced active control. Currently it is actually being utilized in magnetic suspension trains, turbomolecular pumps, flywheel energy storages, clean pumps, and blood pumps for artificial hearts etc. We are working at the development of a magnetic bearing smaller than those already existing, the development of a self-bearing motor that integrates magnetic bearings and an AC motor, and the development of a non-contact displacement sensor for use in magnetic levitation etc. We are also developing a magnetic bearing system using a superconductor in addition to the magnetic suspension that uses a normal conduction magnet.
  • Scene of experiment

  • AC motor using small magnetic bearing