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    • 3. 发明申请
    • DISK DRIVE AND METHOD FOR MEASURING CLEARANCE CHANGE IN THE DISK DRIVE
    • 磁盘驱动器和用于测量磁盘驱动器中的间隙变化的方法
    • US20110102933A1
    • 2011-05-05
    • US12558435
    • 2009-09-11
    • Masayuki KuritaKenji KurokiKenichi KuramotoYoshihiko Maeda
    • Masayuki KuritaKenji KurokiKenichi KuramotoYoshihiko Maeda
    • G11B27/36G11B21/02
    • G11B5/6029G11B5/6064
    • A method for measuring a change of a clearance between a head and a disk. The method includes reading a preliminarily written data string for clearance measurement on a disk to obtain a first measured value corresponding to a clearance, and writing a new data string for deterioration check onto the disk and reading the data string for deterioration check to obtain a second measured value corresponding to the clearance. The method also includes determining a deterioration of the data string for clearance measurement from a difference between the first measured value and the second measured value, measuring a clearance change using the data string for clearance measurement by a normal operation if the determination is that the data string for clearance measurement has not deteriorated, and measuring a clearance change by an operation different operation if the determination is that the data string for clearance measurement has deteriorated.
    • 一种用于测量磁头和磁盘之间的间隙变化的方法。 该方法包括在盘上读取用于间隙测量的预先写入的数据串,以获得与间隙相对应的第一测量值,并将用于劣化检查的新数据串写入盘并读取用于劣化检查的数据串,以获得第二 测量值对应于间隙。 该方法还包括从第一测量值和第二测量值之间的差异确定用于间隙测量的数据串的劣化,如果确定数据是通过正常操作,则使用用于间隙测量的数据串来测量间隙变化 用于间隙测量的琴弦没有劣化,并且如果确定用于间隙测量的数据串已经劣化,则通过操作不同的操作来测量间隙变化。