Levitation system with permanent magnets and coils
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United States of America Patent
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-
Dec 1, 1992
Grant Date -
N/A
app pub date -
Mar 27, 1991
filing date -
Mar 27, 1991
priority date (Note) -
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Abstract
A levitation system for levitating a levitated magnetic element in a stable suspended position on one side of a separating plane using a magnetic arrangement on the opposite side of the separating plane. The magnetic arrangement provides a preselected static magnetic field configuration that interacts with a magnet in the levitated element so that the magnetic potential energy of this interaction increases for displacements of the element from its stable position in directions parallel to a stability plane and decreases for displacements of the element from the stable position perpendicular to the stability plane. Any movement perpendicular to the stability plane is sensed and used by a feedback control system to control a force applied to the levitated element to stabilize the element against displacement from the stable position in directions perpendicular to the stability plane.
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