Disk drive correlating different fly height measurements to verify disk warpage
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...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 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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