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Non-contact measurement of slider fly height by electrostatic force
Non-contact measurement of slider fly height by electrostatic force
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机译:通过静电力非接触式测量滑块浮动高度
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摘要
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.
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