Title :
Optimizing bias current for shielded soft-adjacent-layer magnetoresistive read head using a track profile model
Author :
Huang, Mingiyue ; Riedlin, Vern ; Tran, Tuan
Author_Institution :
Res. & Dev. Dept., Read-Rite Corp., Milpitas, CA, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
A method of optimizing the bias current of a shielded soft-adjacent-layer magnetoresistive recording head is presented using a spinstand track profile model. Values of write width, read width, track asymmetry, and track position error signal at the optimized bias current are determined. Expressions of the position error signal gain of a track profile are discussed
Keywords :
least squares approximations; magnetic heads; magnetic recording noise; magnetoresistive devices; bias current optimization; least square rule; position error signal gain; read width; readback characteristics; shielded soft-adjacent-layer magnetoresistive read head; spinstand track profile model; track asymmetry; track position error signal; write width; Least squares methods; Magnetic heads; Magnetization; Magnetoresistance; Optimization methods; Research and development; Servomechanisms; Signal processing; Testing; Transducers;
Journal_Title :
Magnetics, IEEE Transactions on
