NDLI: Iterative Feedback Tuning (IFT) of Hard Disk Drive Head Positioning Servomechanism

Content Provider	IEEE Xplore Digital Library
Author	Al Mamun, A. Ho, W.Y. Wang, W.E. Lee, T.H.
Copyright Year	2007
Description	Author affiliation: Nat. Univ. of Singapore, Singapore (Al Mamun, A.; Ho, W.Y.)
Abstract	Hard disk drive (HDD) is a mass produced item so are its components including the actuator used for head positioning servomechanism. Transfer characteristics of these actuators vary within a tolerance limit and a nominal model representing the family of actuators is used for controller design. Equally good performance is not possible for all actuators with the designed controller. However, as the demand for performance of the disk drive servomechanism continues to grow higher to meet the requirements for higher storage capacity of HDD, performance of the servo controller becomes more crucial. Furthermore, wear and tear of the components causes degradation of performance over time. These issues demand the use of good on-line tuning of servo controller. This paper explores the possibility of using Iterative Feedback Tuning (IFT) on HDD servomechanism. Enhancement of performance with IFT is demonstrated using simulation and experimental results.
Starting Page	769
Ending Page	774
File Size	2990753
Page Count	6
File Format	PDF
ISBN	1424407834
ISSN	1553572X
DOI	10.1109/IECON.2007.4460222
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-05
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feedback Hard disks Servomechanisms Actuators Frequency response Servomotors Pi control Proportional control Magnetic heads Assembly
Content Type	Text
Resource Type	Article

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Iterative Feedback Tuning (IFT) of Head Positioning Servomechanism in Hard Disk Drive

Iterative feedback tuning (ift) of head positioning servomechanism in hard disk drive.

Discrete-time model predictive control for head-positioning servomechanism in a dual-stage hard disk drive

Servo Loop Gain Identification In Hard Disk head-positioning servo

Optimization of head-positioning control in a hard disk drive using the RBode plot

Simultaneous detection method of position and velocity for hard-disk drive servo system

Head Actuator Assembly Vibration Compensation of Hard Disk Servos

Head positioning control of a hard disk drive using H/sup infinity / theory

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Iterative Feedback Tuning (IFT) of Hard Disk Drive Head Positioning Servomechanism

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Iterative Feedback Tuning (IFT) of Head Positioning Servomechanism in Hard Disk Drive

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