Magnetic bearing device
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United States of America Patent
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-
Dec 17, 1991
Issued Date -
N/A
app pub date -
Jul 27, 1990
filing date -
Oct 7, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention discloses a magnetic bearing device having a rotary main shaft, an armature disk mounted on the rotary main shaft, and a pair of bearing elements disposed on opposite sides in axial direction of the armature disk. Each of bearing elements includes a control coil provided with a pair of pole pieces, wherein a top end of each of the pole pieces is disposed near to the armature disk, and the pole pieces are mounted with a sensor coil at a position nearer to a front end side of the control coil.
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