Passive levitation in alternating magnetic fields

DWPI Title: Object levitating method for magnet arrangement, involves controlling alternating magnetic field environment to eliminate coupling between rotational and translational magnetic forces when object is positioned in magnetic field environment
Abstract: Stable levitation of an object in an alternating magnetic field can be achieved by eliminating coupling between the rotational and translational forces acting on the object. Stable levitation can also be achieved by varying the coupling between the rotational and translational forces acting on the object, while maintaining one or more of the rotational and translational forces steady in time.
Use: Method for levitating an object on a magnet arrangement.
Advantage: The alternating magnetic field environment is controlled to eliminate coupling between the rotational and translational magnetic forces based on a mass of the object and a moment of inertia of the object when the object is positioned in the alternating magnetic field environment, thus achieving stable levitation of the object, while steadily maintaining the rotational and translational forces.
Novelty: The method involves positioning an object in an alternating magnetic field environment to subject the object to rotational and translational magnetic forces. The alternating magnetic field environment is controlled to eliminate coupling between the rotational and translational magnetic forces based on a mass of the object and a moment of inertia of the object when the object is positioned in the alternating magnetic field environment. A signal generator (393) is cooperated with a magnet system.
Filed: 3/25/2009
Application Number: US2009411038A
Tech ID: SD 7828.2
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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