Calculation of head sensitivity function from 3-D magnetic fields

A head sensitivity function is calculated using 3-D magnetic fields. The 3-D magnetic fields are calculated for recorded tracks with finite widths. The magnetization in the medium is expressed in 2-D Fourier series in the plane of the film and is assumed uniform through the thickness of the film. Th...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1994-11, Vol.30 (6), p.4278-4280
Main Authors: Burke, E.R., Gomez, R.D., Madabhushi, R., Mayergoyz, I.D.
Format: Article
Language:English
Subjects:
Educational institutions
Fourier series
Laboratories
Magnetic field measurement
Magnetic fields
Magnetic films
Magnetic heads
Magnetic recording
Saturation magnetization
Voltage
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Summary:A head sensitivity function is calculated using 3-D magnetic fields. The 3-D magnetic fields are calculated for recorded tracks with finite widths. The magnetization in the medium is expressed in 2-D Fourier series in the plane of the film and is assumed uniform through the thickness of the film. The reproduce head is idealized. These techniques are applied to data found in the literature for very narrow tracks (/spl sim/0.5 /spl mu/m). A surprising amount of the experimental data can be explained by the finite width of the tracks. The fine structure of the measurements can then be isolated and attributed to the particular features of the individual heads.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.334060