DocumentCode :
1486618
Title :
A simple model of longitudinal digital magnetic recording
Author :
Nayland, W.R.
Volume :
52
Issue :
7
fYear :
1982
fDate :
7/1/1982 12:00:00 AM
Firstpage :
339
Lastpage :
357
Abstract :
A two-dimensional theoretical distribution with many of the features observed on a 5000 :1 model is developed and the field external to the medium linking the replay head is shown to be equivalent to the field from a filamentary pole parallel to the medium surface and transverse to the track direction located at the centre of each transition. Each transition is described by s pole strength per unit track width, tand its distance behindthe medium surface, a. Methods for relating and a to the magnetic characteristic and physical dimensions of themedium are developed. Prediction of the replay performance from the theory show good agreement with experimental data. A notation for describing vectorial magnetization in two cartesian dimensions is introduced which automatically enforces the requirement that the divergence of B is zero whilst simultaneously allowing the magnetization of elements within the distribution some independence so that internal divergence of magnetization is described.
Keywords :
magnetic recording; longitudinal digital magnetic recording; magnetic characteristics; optimum record current; quality control procedures; recording process; replay performance;
fLanguage :
English
Journal_Title :
Radio and Electronic Engineer
Publisher :
iet
ISSN :
0033-7722
Type :
jour
DOI :
10.1049/ree.1982.0052
Filename :
5269803
Link To Document :
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