High Precision Positioning Control for Hard Disk Drives

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Hard Disk Drives Control in Mobile Applications

In this paper, control design is investigated for hard disk drives in mobile applications with unknown external arbitrarily fast time-varying disturbances. The disturbances can be estimated with exponential accuracy using the proposed disturbance observer based on a series of integral filters. The position error signal will converge to zero with the proposed control technique for systems subjec...

متن کامل

H1 disturbance observer design for high precision track following in hard disk drives

Contrary to the conventional method of disturbance observers (DOB) where Q-filter is designed to be a low-pass filter with unity DC gain, the optimal H1 method has been proposed to design the Q-filter and applied in the servo control system of hard disk drives in track following. Simulation and implementation results have shown that the resultant H1 DOB improves low-frequency disturbance attenu...

متن کامل

Unobservable Settling Vibration on Head-Positioning Control in Hard Disk Drives

In this paper, we study the unobserved vibrations of the head in hard disk drives which may lead to destruction of user data. We show that the acceleration input excites the mechanical resonance near the sampling frequency of the hold in the settling characteristics after the track-seeking control. We also show that the degree to which these oscillations are unobservable depends on the sampling...

متن کامل

A Dual-Stage Control Design for High Track Per Inch Hard Disk Drives

This paper proposes an optimization based control scheme for a dual-stage hard disk drive servo system to maximize the tracking accuracy given the actuator bandwidth limitations without knowing the mechanical disturbance model. We proposed to add an outer loop, selected based on optimization of the Youla parameters, to the usual dual-stage controller for tracking accuracy improvement. The Youla...

متن کامل

A Stochastic Analysis of Hard Disk Drives

We provide a stochastic analysis of hard disk performance, including a closed form solution for the average access time of a memory request. The model we use covers a wide range of types and applications of disks, and in particular it captures modern innovations like zone bit recording. The derivation is based on an analytical technique we call “shuffling”, which greatly simplifies the analysis...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: IEEJ Transactions on Industry Applications

سال: 2005

ISSN: 0913-6339,1348-8163

DOI: 10.1541/ieejias.125.1069