Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/69861
Title: Design of controller for the dual-stage actuator in hard disk drive using internal model approach
Authors: Al-Mamun, A. 
Lee, T.H. 
Ling, P.
Suthasun, T.
Issue Date: 2002
Source: Al-Mamun, A.,Lee, T.H.,Ling, P.,Suthasun, T. (2002). Design of controller for the dual-stage actuator in hard disk drive using internal model approach. Proceedings of the World Congress on Intelligent Control and Automation (WCICA) 4 : 2561-2565. ScholarBank@NUS Repository.
Abstract: Dual-stage actuator is considered to be the solution to meet the challenges of ever-increasing track density in hard disk drive. The low-inertia secondary actuator of the dual-stage actuator makes it possible to reposition the read/write head fast to follow the sharp variations in the track. This allows better control of the tracking error during track-following mode of the servo system. Unfortunately, the physical characteristics of the secondary actuators vary widely due to imperfections in the manufacturing process and the variation in the material properties. Robustness is, therefore, a very important factor in the design of the servo controller. Internal model control (IMC) is regarded as a tool for designing robust controller. In this paper, we present the results of the design of servo controller for a dual-stage actuator using this internal model approach. Effectiveness of the controller is verified through simulation.
Source Title: Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
URI: http://scholarbank.nus.edu.sg/handle/10635/69861
Appears in Collections:Staff Publications

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