Title :
Modified adaptive feedforward runout compensation for dual-stage servo system
Author :
Zhang, Jingliang ; Chen, Ruifeng ; Guo, Guoxiao ; Low, Teck-Seng
Author_Institution :
Data Storage Inst., Singapore
fDate :
9/1/2000 12:00:00 AM
Abstract :
This paper applies the modified adaptive feedforward compensation (AFC) scheme to the dual stage servo system for the cancellation of repeatable runout (RRO) and nonrepeatable runout (NRRO). It shows that runout can be effectively compensated or attenuated by assigning runout components to VCM actuator and microactuator properly
Keywords :
adaptive control; compensation; control system synthesis; feedforward; machine control; machine theory; microactuators; servomotors; transfer functions; VCM actuator; control design; dual-stage servo system; microactuator; modified adaptive feedforward runout compensation; nonrepeatable runout cancellation; repeatable runout cancellation; Actuators; Automatic frequency control; Bandwidth; Control systems; Maintenance engineering; Microactuators; Rail to rail outputs; Reliability engineering; Servomechanisms; Servosystems;
Journal_Title :
Magnetics, IEEE Transactions on
