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Hard disk drive, method for controlling flying height of magnetic head of hard disk drive, and recording medium recording computer program for performing the method
Hard disk drive, method for controlling flying height of magnetic head of hard disk drive, and recording medium recording computer program for performing the method
A method of controlling a flying height of a magnetic head of a hard disk drive apparatus includes producing a reference FOD (flying on demand) voltage profile defining a relationship between the flying height of the magnetic head and an FOD voltage at a measured temperature, wherein an end of the magnetic head thermally expands and protrudes when the FOD voltage is applied to a heater included in the magnetic head and setting the reference FOD voltage profile that is corrected using a reference maximum flying height of the magnetic head that is preset at room temperature, as an applied FOD voltage profile to control the flying height of the magnetic head.
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