Passive levitation in alternating magnetic fields

Details Passive levitation in alternating magnetic fields Passive levitation in alternating magnetic fields

2005-09-21

2009-06-16

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06800R

Reexamination Certificate

active

07548004

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.

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patent: 6215218 (2001-04-01), Ueyama
patent: 6472787 (2002-10-01), Kameno et al.
Romero, L.A., “Passive levitation in Alternating Magnetic fields” SIAM Journal on Applied Mathematics, 2002, vol. 63, No. 6, p. 2155-75.
G. Genta, et al, Gyroscopic Stabilization of Passive Magnetic Levitation, Meccanica, 34, 1999, pp. 411-424, Jan. 2000.
W. Paul, Electromagnetic Traps for Charged and Neutral Particles, Reviews of Modern Phys., vol. 62, No. 3, 1990, pp. 531-540, Jul. 1990.
J. Howard and R. MacKay, Linear Stability of Symplectic Maps, J. Math. Phys., 28 (5), 1987, pp. 1036-1051, May 1987.

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