发明申请
- 专利标题： Electrical current as probe for modulation at head-disk interface
- 专利标题（中）： 电流作为头磁盘接口调制的探头
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申请号： US10982604申请日： 2004-11-04
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公开(公告)号： US20050174667A1公开(公告)日： 2005-08-11
- 发明人: Zhu Feng , Xiaofeng Zhang , Ellis Cha
- 申请人： Zhu Feng , Xiaofeng Zhang , Ellis Cha
- 主分类号： G11B5/012
- IPC分类号： G11B5/012 ; G11B5/02 ; G11B5/40
摘要：
A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head reads a signal from the magnetic storage medium. A tester measures an alternating electric current between the magnetic read/write head through the slider and the magnetic storage medium. A computer may then calculate the modulation by the magnetic read/write head based on the alternating electric current. A DC voltage to the head may be applied to lower the flying height of the magnetic head.
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