Title :
Dynamics affecting tracking bias in hard disk drive rotary actuators
Author :
Eddy, Kyle ; Messner, William
Author_Institution :
Data Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
The hand-off from seeking tracking in hard disk drives can be made more quickly if the average bias current necessary to maintain tracking is known a priori. It has been observed that there are several variables which influence bias including the history of seeks made by the drive. This paper discusses the variables affecting bias, experimentally investigates the effects of seek history, and suggests improved algorithms for bias prediction
Keywords :
actuators; hard discs; tracking; average bias current; bias prediction; hard disk drive rotary actuators; tracking bias; Aerodynamics; Automatic control; Data systems; Hard disks; History; Manufacturing; Pneumatic actuators; Prediction algorithms; Target tracking; Testing;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.520905
