Title :
Stray field sensitivity of a pole head on a dual layer perpendicular disk
Author :
Hesterman, V.W. ; Gill, H.S.
Author_Institution :
Hewlett-Packard Lab., Palo Alto, CA, USA
fDate :
9/1/1989 12:00:00 AM
Abstract :
The two-dimensional finite element method is used to study the effects of external fields on single-pole heads on a dual-layer medium. Profiles of the perpendicular field, Hy, under the pole tips are given for various geometries and field directions. A 1000× scale model was built to study the three-dimensional effects for external y-axis fields. The stray field problem is shown to be serious for y-axis fields, i.e. fields perpendicular to the disk surface
Keywords :
finite element analysis; magnetic disc storage; magnetic fields; magnetic heads; sensitivity; dual layer perpendicular disk; external fields; perpendicular field; single-pole heads; stray field sensitivity; three-dimensional effects; two-dimensional finite element method; y-axis fields; Actuators; Degradation; Disk drives; Finite element methods; Geometry; Helium; Laboratories; Magnetic fields; Magnetic heads; Permeability;
Journal_Title :
Magnetics, IEEE Transactions on
