Title :
The effect of write head saturation on the characteristics of AC bias recording
Author :
Nishikawa, Masaaki ; Kirihara, Akio
Author_Institution :
Yamaguchi University, Tokiwadai, Ube, Japan
fDate :
9/1/1986 12:00:00 AM
Abstract :
The magnetic recording process is sometimes affected by write head saturation. Experimental results revealing the profile of the head saturation effect on the characteristics of ac bias recording are shown. The amplitude of residual flux in a recorded medium and that of a read signal decrease with increasing bias current from the vicinity of the head saturation point. The total harmonic distortion of a read signal becomes minimal at the head saturation point, and it shows separated maxima on either side of the minimum. These results are explained by considering the asymmetrically clamped envelope of the total head field, caused by the head saturation effect.
Keywords :
Magnetic recording/reading heads; Magnetic tape recording; Nonlinear magnetics; Audio recording; Cathode ray tubes; Coercive force; Digital recording; Frequency estimation; Magnetic flux; Magnetic heads; Magnetic recording; Saturation magnetization; Total harmonic distortion;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1986.1064543