Invention Grant
US07660068B1 Method and system for pre-contact detection and active damping of air bearing vibrations in a hard disk drive
有权
用于预接触检测和主动阻尼硬盘驱动器中的空气轴承振动的方法和系统
- Patent Title: Method and system for pre-contact detection and active damping of air bearing vibrations in a hard disk drive
- Patent Title (中): 用于预接触检测和主动阻尼硬盘驱动器中的空气轴承振动的方法和系统
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Application No.: US12212739Application Date: 2008-09-18
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Publication No.: US07660068B1Publication Date: 2010-02-09
- Inventor: Peter M. Baumgart , John T. Contreras , Luiz Franca-Neto , Bernhard E. Knigge , Richard Kroeker , Gurinder P. Singh
- Applicant: Peter M. Baumgart , John T. Contreras , Luiz Franca-Neto , Bernhard E. Knigge , Richard Kroeker , Gurinder P. Singh
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B21/02
- IPC: G11B21/02 ; G11B15/64
Abstract:
In a method of pre-contact detection and active damping of air bearing vibrations in a hard disk drive, a slider is isolated from ground. The slider is then capacitively coupled with a hard disk of the hard disk drive via a thermal fly-height control (TFC) heating element. An alternating current (AC) signal is applied to the slider via the TFC heating element to control the amplitude of the slider.
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