Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hai C. Nguy0
Robert E. Eaton0
Jeffrey R. Williams0
Date of Patent
October 5, 2010
0Patent Application Number
118943600
Date Filed
August 20, 2007
0Patent Primary Examiner
Patent abstract
A method for monitoring a fly height of a magnetic transducer comprises flying the magnetic transducer at a distance of separation from a recording media. The fly height is modulated with a predetermined modulation frequency with a fly height control device. A read-back signal is read from the recording media with the magnetic transducer. A change of the read back signal is measured that results from modulating the fly height. A fault signal is provided in response to the change crossing a threshold.
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