Disk drive correlating different fly height measurements to verify disk warpage
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United States of America Patent
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Oct 30, 2012
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N/A
app pub date -
Sep 30, 2010
filing date -
Sep 30, 2010
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Abstract
A disk drive is disclosed comprising a disk surface, and a head actuated over the disk surface. A first fly height measurement is generated for the head over the disk surface by measuring a first metric, and a second fly height measurement is generated for the head over the disk surface by measuring a second metric different from the first metric. The first fly height measurement is verified by detecting a positive correlation in the first and second fly height measurements.
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