Title :
Sector servo system for high speed seeking and high track density
Author :
Yamada, T. ; Inoue, T. ; Sugaya, T.
Author_Institution :
Toshiba Res. & Dev. Center, Kawasaki, Japan
fDate :
11/1/1988 12:00:00 AM
Abstract :
A microprocessor-based sector servosystem, which uses servo information derived only from each data surface, has been developed. Applying this servosystem to a 5.25-in hard disk drive, a 12-ms average seek time (at 1500 TPI) and ±0.5-μm head-positioning accuracy were achieved. The system controls the read/write head position more swiftly and accurately then in conventional head-positioning systems with a dedicated servo surface
Keywords :
hard discs; magnetic heads; servomechanisms; 12 ms; 5.25 in; data surface; hard disk drive; head-positioning accuracy; high speed seeking; high track density; microprocessor-based sector servosystem; read/write head position; servo information; Actuators; Circuit simulation; Control systems; Data processing; Hard disks; Reliability; Research and development; Servomechanisms; Signal processing; Signal sampling;
Journal_Title :
Magnetics, IEEE Transactions on
