Title :
Contact tape recording with a flat head contour
Author :
Hinteregger, Hans ; Müftü, Sinan
Author_Institution :
Haystack Obs., MIT, Westford, MA, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
A plain flat `row-bar´ of commercial thin-film disk heads was evaluated and found to be suitable for high speed and high track- and linear-density tape recording. After more than 2000 hours of running in contact at 8 m/s no output degradation was observed. An upper limit of 4 nm was placed on head wear. Output, hence head-tape spacing was seen to be independent of the tape speed from 0.5 to 8 m/s. A mechanical model of the system shows that a self-acting negative air bearing (suction) is responsible for the stability of the interface
Keywords :
magnetic heads; magnetic recording; contact tape recording; flat head contour; head-tape spacing; high speed recording; interface stability; linear density; mechanical model; output degradation; row-bar; self-acting negative air bearing; suction; thin-film disk head; track density; wear; Coercive force; Electrical resistance measurement; Ferrites; Geometry; Magnetic heads; Monitoring; Rough surfaces; Solid modeling; Surface roughness; Surface topography;
Journal_Title :
Magnetics, IEEE Transactions on
