초록 ▼

Magnetic levitation apparatus utilizing an arrangement of permanent magnets, one or more electromagnets, position and motion sensors plus electronic circuitry to effectively support the weight of and control the position of a levitated object. Provision is made to minimize the force required from ea

Magnetic levitation apparatus utilizing an arrangement of permanent magnets, one or more electromagnets, position and motion sensors plus electronic circuitry to effectively support the weight of and control the position of a levitated object. Provision is made to minimize the force required from each electromagnet and the levitation system power consumption. Particular damping elements are incorporated in various arrangements of the levitation system to enhance the position and motion control of the levitated object.

대표청구항 ▼

Magnetic levitating apparatus comprising: a first magnetic element mounted to support an object to be levitated in a magnetic field; a magnetic member including a second magnetic element for placement in a position to be levitated by magnetic field interaction between the two magnetic elements, at l

Magnetic levitating apparatus comprising: a first magnetic element mounted to support an object to be levitated in a magnetic field; a magnetic member including a second magnetic element for placement in a position to be levitated by magnetic field interaction between the two magnetic elements, at least one of said magnetic elements being a permanent magnet; electromagnetic induction means for monitoring the position and velocity of the magnetic member relative to a null position, the electromagnetic induction means comprising target coil means mounted for movement with the magnetic member and stationary sense coil means inductively coupled to the target coil means; electromagnetic field generating means including at least one force generating coil for modifying the magnetic levitation field; and circuit means coupled between the sense coil means and the electromagnetic field generating means for selectively controlling an electrical current in the force generating coil in response to electrical signals from the sense coil means.