Stabilized electromagnetic levitator and method

Details Stabilized electromagnetic levitator and method Stabilized electromagnetic levitator and method

1990-03-06

1992-09-22

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

219 75, 307104, H02N 1500

Patent

active

051502720

ABSTRACT:
A device for providing electromagnetic levitating forces and heating is described. A plurality of separate coils are provided, each powered by a separate power amplifier. Each coil may be supplied with two separate frequencies, one to levitate, and the other to heat the object. Also, the coils may be driven at separate phases to more uniformly distribute the magnetic levitating and heating forces.

REFERENCES:
patent: 4420977 (1983-12-01), Elleman et al.
patent: 4565571 (1986-01-01), Abbaschian
patent: 4578552 (1986-03-01), Mortimer
patent: 4896849 (1990-01-01), Moynihan
patent: 4979182 (1990-12-01), Lohoefer

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