Disk drive detecting positive correlation in fly height measurements
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United States of America Patent
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Nov 27, 2012
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N/A
app pub date -
Mar 18, 2010
filing date -
Mar 18, 2010
priority date (Note) -
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Abstract
A disk drive is disclosed comprising a plurality of disks having a plurality of disk surfaces. The disk drive further comprises a head actuated over each disk surface, and a spindle motor for rotating the disks. A first fly height measurement is generated for a first disk surface, and a second fly height measurement is generated for a second disk surface. A positive correlation is detected in the first and second fly height measurements.
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