Magnetic damping system having low induction magnet
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United States of America Patent
Stats
-
Dec 9, 1980
Grant Date -
N/A
app pub date -
Feb 16, 1979
filing date -
Feb 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic damping system for induction devices having electroconductive disk armatures includes a low induction, high coercive force magnet that is vertically elongated and has a horizontal direction of magnetization parallel to the disk. Flux concentrating pole pieces adjoin the magnet pole faces for vertically directing two closely spaced braking magnetic fields from a pair of pole tips and into the disk. A temperature compensating arrangement covers the sides of the permanent magnet between the edges of the pole pieces to efficiently compensate for higher reversible temperature coefficients of magnet remanence.
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