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    • 10. 发明授权
    • Disk drive with localized clearance and contact potential measurement capability
    • 具有局部清除和接触电位测量功能的磁盘驱动器
    • US07286314B2
    • 2007-10-23
    • US11153186
    • 2005-06-15
    • Peter Michael BaumgartMaik DuwenseeBernhard E. Knigge
    • Peter Michael BaumgartMaik DuwenseeBernhard E. Knigge
    • G11B21/02G11B27/36G11B5/596
    • G11B5/60G11B21/21
    • A method and system for determining localized contact potential voltages and localized clearance data between a slider body and a hard disk of a hard disk drive. In embodiments of the present invention, a plurality of direct current (DC) pulses are applied between said slider body and a discreet location of the hard disk. In embodiments of the present invention, the discreet location of the hard disk comprises a portion of a data track of the hard disk. In embodiments of the present invention, a variation in the clearance of the slider body is determined when a given voltage is applied. Furthermore, a first set of DC pulses has a positive/negative bias while a second set of DC pulses has a negative/positive bias. The voltage of the sets of DC pulses is increased until a contact between the slider body and the hard disk is detected.
    • 用于确定滑块体和硬盘驱动器的硬盘之间的局部接触电位电压和局部间隙数据的方法和系统。 在本发明的实施例中,多个直流(DC)脉冲被施加在所述滑块体和硬盘的谨慎位置之间。 在本发明的实施例中,硬盘的谨慎位置包括硬盘的数据轨道的一部分。 在本发明的实施例中,当施加给定电压时确定滑块体的间隙的变化。 此外,第一组DC脉冲具有正/负偏压,而第二组DC脉冲具有负/正偏压。 DC脉冲组的电压增加,直到检测到滑块体和硬盘之间的接触。