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Disk drive measuring spiral track error by measuring a slope of a spiral track across a disk radius
Disk drive measuring spiral track error by measuring a slope of a spiral track across a disk radius
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机译:磁盘驱动器通过测量螺旋轨迹在磁盘半径上的斜率来测量螺旋轨迹误差
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摘要
A disk drive is disclosed comprising a disk comprising at least one spiral track, a head, and an actuator operable to actuate the head over the disk. A slope of the spiral track is measured at a plurality of radial locations across the disk, and a spiral track error at each radial location is generated based on a difference between the measured slope and a target slope. The head is actuated over the disk based on the spiral track and the spiral track error.
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