DocumentCode
1529794
Title
A closed-form MR tape head PES model
Author
Helms, Carl A.
Author_Institution
StorageTrek, Louisville, CO, USA
Volume
37
Issue
4
fYear
2001
fDate
7/1/2001 12:00:00 AM
Firstpage
1346
Lastpage
1349
Abstract
A closed-form phenomenological expression for the convolution of a MR head microtrack profile with a written track profile is derived. Trapezoid shapes with unequal skirt widths are used to approximate both the MR head microtrack profile and the written track profile. The crosstrack profile model result is compared to a measured profile and is shown to accurately reproduce its shape. A servo Position Error Signal (PES) model then is constructed from the crosstrack profile expression. Deviations from PES linearity and gain variations due to MR element microtrack shape variations are studied using the PES model
Keywords
convolution; magnetic heads; magnetic tapes; magnetoresistive devices; servomechanisms; closed-form phenomenological model; convolution; crosstrack profile; magnetoresistive tape head; microtrack profile; position error signal; servo system; written track profile; Closed-form solution; Control systems; Convolution; Disk drives; Electronic mail; Linearity; Magnetic heads; Magnetoresistance; Servomechanisms; Shape measurement;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.950837
Filename
950837
Link To Document