发明名称 |
Electrical current as probe for modulation at head-disk interface |
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. |
申请公布号 |
US2011299191(A1) |
申请公布日期 |
2011.12.08 |
申请号 |
US201113065941 |
申请日期 |
2011.04.01 |
申请人 |
FENG ZHU;ZHANG XIAOFENG;CHA ELLIS T.;SAE MAGNETICS (HK) LTD. |
发明人 |
FENG ZHU;ZHANG XIAOFENG;CHA ELLIS T. |
分类号 |
G11B21/02;G11B5/012;G11B5/02;G11B5/40 |
主分类号 |
G11B21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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