Stabilized electromagnetic levitator and method

A device for stabilized electromagnetic levitation of an object having a degree of conductivity, said device comprising a plurality of conductive coils disposed uniformly around said object, first means for supplying each of the coils with alternating current at one frequency for levitating the object between the coils, and second means for supplying the coils with alternating current at a second frequency for heating the levitated object.

A device for stabilized electromagnetic levitation of an object having a degree of conductivity, said device comprising a plurality of separate conductive coils disposed uniformly around the object to be levitated, a separate power amplifier means supplying each coil with alternating current at a given frequency sufficient for levitating said object between said coils, each of said power amplifier means comprising a broadband compact linear RF amplifier located closely adjacent to a respective coil, and conductive means for directly connecting said amplifier to said coil.

Method for electromagnetic levitation and heating of an object comprising the steps of creating a plurality of electromagnetic fields at a plurality of separate coils located around said object at a frequency for levitating said object, and creating a electromagnetic field simultaneously in said coils at a second frequency for heating said object.

A device for stabilized electromagnetic levitation of an object having a degree of conductivity, said device comprising a plurality of pairs of coils disposed around said object on a plurality of axes, power amplifier means for supplying alternating current to said coils, and means for simultaneously establishing a phase differential between the respective pairs of coils for stabilizing the levitated object.