Title :
Track profile of MR head and its performance in a helical scan tape system
Author :
Fukuda, S. ; Shirai, T. ; Ozue, T. ; Ikegami, T. ; Kumagai, S.
Author_Institution :
Core Technol. Dev. Center, Sony Corp., Yokohama, Japan
fDate :
9/1/2000 12:00:00 AM
Abstract :
The MR head is being studied for use in helical-scan guardband-less tape systems. These systems need a read head with a wider track width than track pitch, so the track profile of the head is important. We analyzed the track profile of MR heads, and found that fluctuations in the reading signal are not an issue. We then mounted the head on a tape-streamer drive and measured the SNR. We found that the MR head provided an SNR which makes it possible to double the areal density with a margin more than 6 dB over that of an inductive head
Keywords :
magnetic heads; magnetic tape storage; magnetoresistive devices; MR head; SNR; areal density; guardband-less tape systems; helical scan tape system; tape-streamer drive; track profile; track width; Automatic control; Delay; Fluctuations; Helium; Magnetic analysis; Magnetic devices; Magnetic forces; Magnetic heads; Signal analysis; Signal to noise ratio;
Journal_Title :
Magnetics, IEEE Transactions on
