Levitated motor-actuator with parallel dipole line trap system
AssigneeInternational Business Machines Corporation
InventorOki Gunawan
Life of this patent
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Abstract
A motor-actuator device using a PDL trap system is provided. In one aspect, a motor-actuator device includes: a PDL trap having a pair of diametric magnets, and a levitated diamagnetic rotor in between the diametric magnets, wherein at least a portion of the diamagnetic rotor has a rectangular shape; and an electrode shell having at least one pair of semicircular electrodes which surround, but are in a non-contact position with the levitated diamagnetic rotor and each other. A system including the motor-actuator device and an electrode driver circuit is also provided, as is a method of operating the motor-actuator device.
Claims20
A motor-actuator device, comprising:
- a parallel dipole line (PDL) trap having a pair of diametric magnets, and a levitated diamagnetic rotor in between the diametric magnets, wherein at least a portion of the diamagnetic rotor has a rectangular shape;
- and
- an electrode shell comprising at least one pair of semicircular electrodes which surround, but are in a non-contact position with the levitated diamagnetic rotor and each other.
A system, comprising:
- a motor-actuator device comprising:
- i) a PDL trap having a pair of diametric magnets, and a levitated diamagnetic rotor in between the diametric magnets, wherein at least a portion of the diamagnetic rotor has a rectangular shape, and ii) an electrode shell comprising at least one pair of semicircular electrodes which surround, but are in a non-contact position with the levitated diamagnetic rotor and each other;
- and
- an electrode driver circuit connected to each electrode in the electrode shell and which is configured to apply electric pulses to the at least one pair of semicircular electrodes.
A method of operating a motor-actuator device, the method comprising the steps of:
- providing the motor-actuator device comprising:
- i) a PDL trap having a pair of diametric magnets, and a levitated diamagnetic rotor in between the diametric magnets, wherein at least a portion of the diamagnetic rotor has a rectangular shape, and ii) an electrode shell comprising at least one pair of semicircular electrodes which surround, but are in a non-contact position with the levitated diamagnetic rotor and each other;
- and
- applying electric pulses to the at least one pair of semicircular electrodes causing the levitated diamagnetic rotor to rotate.
Dependencies are inferred from the claim text.