Semianalytical expression for magnetic head field approximation

Author

Tomsia, Michael J.

Author_Institution

Inst. of Solid State Technol., Warsaw, Poland

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3674

Lastpage

3676

Abstract

A semianalytical expression for recording head field approximation has been derived. The proposed formulas combine the exactness of a numerical description of the field strength in the head gap vicinity with the compactness and more suggestive form of its analytical expression. The constraints of the head field equation can be calculated from a polynomial approximation of the longitudinal field strength at zero distance from the front of the head. As an example, a comparison between the head field distributions for a ferrite head derived from the semianalytical solution and directly computed by the finite difference method is given

Keywords

magnetic fields; magnetic heads; polynomials; ferrite head; field distributions; head gap; longitudinal field strength; magnetic head; polynomial approximation; recording head field approximation; semianalytical expression; Approximation methods; Distributed computing; Ferrites; Integral equations; Least squares approximation; Magnetic analysis; Magnetic heads; Magnetic recording; Polynomials; Solid state circuits;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42393

Filename

42393