Linear moving coil actuator
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United States of America Patent
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-
Mar 27, 1984
Grant Date -
N/A
app pub date -
Jan 18, 1982
filing date -
Jan 18, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The magnetic head actuator includes a substantially totally enclosed self-shielding voice coil linear motor which includes a continuous, cylindrical permanent magnet of flexible material which is sealed against the inner cylindrical wall of the outer core by a flared copper sleeve that also serves as a non-magnetic, conductive shorted turn to reduce instantaneous inductance of the drive coil. An annular reluctance gap in the outer core provides symmetrical distribution of the permanent magnet flux.
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Cited Art Landscape
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