NEAR-FIELD TRANSDUCER EFFICIENCY MONITORING SYSTEM

A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may...

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Bibliographic Details
Main Authors CHU ALFREDO SAM, CHOW SIEW KIN, HAAPALA KENNETH ARTHUR, BURNETT PAUL WILLIAM
Format Patent
LanguageEnglish
Published 20.08.2015
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A system may have a data storage medium that contains at least one data bit that is accessed by a transducing head that has a near-field transducer. A controller can be connected to the transducing head and store a plurality of near-field transducer operating currents in a memory. The controller may identify a change in efficiency of the near-field transducer from the plurality of near-field transducer operating currents.
Bibliography:Application Number: US201414185424