Magnetic bearing arrangement for a rotor

Details Magnetic bearing arrangement for a rotor Magnetic bearing arrangement for a rotor

1996-08-08

1998-07-07

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310 68B, H02K 709

Patent

active

057774145

ABSTRACT:
A magnetic bearing arrangement for a rotor of a D.C. electric motor, which is rotated due to cooperation of a permanent magnet provided on the rotor and stator coils, and including a magnetic bearing, and at least one additional coil arrangement provided in a region of the permanent magnet at a side of a stator of the electric motor, and in which a voltage is induced by the rotatable permanent magnet means, with the at least one of the amplitudes and at least one of the phases of the relative geometrical position of the at least one additional coil arrangement and the permanent magnet being used as a sensor signal for stabilizing the magnetic bearing.

REFERENCES:
patent: 4037886 (1977-07-01), Boden et al.
patent: 4065189 (1977-12-01), Sikorra
patent: 4683391 (1987-07-01), Higuchi
patent: 5126610 (1992-06-01), Fremerey
patent: 5155402 (1992-10-01), Bichler
patent: 5223758 (1993-06-01), Kataoka et al.
patent: 5302874 (1994-04-01), Pinkerton
patent: 5332987 (1994-07-01), Hennessey et al.
patent: 5543673 (1996-08-01), Katsumata et al.

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