| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of measuring a slider fly height without touch-down, a disk drive and a slider. SOLUTION: In a system and method for a non-contact measurement of the fly height of a slider above a magnetic data storage medium using electrostatic force, a slider with a read/write head flies over a magnetic data storage medium. A series of distinct voltages are applied between the slider and the magnetic data storage medium, and corresponding read-back signals are recorded. Using the recorded read-back signals, coefficients for an empirical curve-fit equation are calculated. The coefficients are normalized and converted into a fly height measurement. COPYRIGHT: (C)2008,JPO&INPIT
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