Title :
Bit shift characteristics of MIG head
Author :
Nakao, M. ; Noguchi, K. ; Suwabe, S. ; Nishiyama, T.
Author_Institution :
Hitachi Metals Ltd., Saitama, Japan
fDate :
9/1/1989 12:00:00 AM
Abstract :
The bit shift characteristics of MIG (metal-in-gap) heads were compared with those of ferrite and Ni-Fe thin film heads. A small isolated pulsewidth and large S/N (signal/noise) ratio were found to lead to a small bit shift. The bit shifts of MIG heads are smaller than those of non-MIG heads. The bit shifts of composite heads are slightly larger than those of monolithic ones because of the small S/N ratio. Within a 10% ratio, the secondary gap pulse does not have a significant influence on bit shift
Keywords :
interference (signal); magnetic heads; S/N ratio; SNR; bit shift characteristics; composite heads; isolated pulsewidth; metal-in-gap; monolithic heads; secondary gap pulse; signal/noise ratio; Composite materials; Disk recording; Error analysis; Ferrites; Frequency; Magnetic films; Magnetic heads; Magnetic materials; Space vector pulse width modulation; Sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
