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Modified adaptive feedforward runout compensation for dual-stage servo system

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4 Author(s)
Jingliang Zhang ; Data Storage Inst., Singapore ; Ruifeng Chen ; Guoxiao Guo ; Teck-Seng Low

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

Published in:

Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )