Hard Disk Drive: Mechatronics and Control, 1st Edition (Hardback) book cover

Hard Disk Drive

Mechatronics and Control, 1st Edition

By Abdullah Al Mamun, GuoXiao Guo, Chao Bi

CRC Press

359 pages | 250 B/W Illus.

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Hardback: 9780849372537
pub: 2006-11-02
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Description

The hard disk drive is one of the finest examples of the precision control of mechatronics, with tolerances less than one micrometer achieved while operating at high speed. Increasing demand for higher data density as well as disturbance-prone operating environments continue to test designers' mettle. Explore the challenges presented by modern hard disk drives and learn how to overcome them with Hard Disk Drive: Mechatronics and Control.

Beginning with an overview of hard disk drive history, components, operating principles, and industry trends, the authors thoroughly examine the design and manufacturing challenges. They start with the head positioning servomechanism followed by the design of the actuator servo controller, the critical aspects of spindle motor control, and finally, the servo track writer, a critical technology in hard disk drive manufacturing. By comparing various design approaches for both single- and dual-stage servomechanisms, the book shows the relative pros and cons of each approach. Numerous examples and figures clarify and illustrate the discussion.

Exploring practical issues such as models for plants, noise reduction, disturbances, and common problems with spindle motors, Hard Disk Drive: Mechatronics and Control avoids heavy theory in favor of providing hands-on insight into real issues facing designers every day.

Table of Contents

INTRODUCTION

History of HDD Technology

Components of a Hard Disk Drive

Accessing Data in HDD

Trend in HDD Industry

Alternative Recording Technologies

HEAD POSITIONING SERVOMECHANISM

The Servo Loop

The Actuator

Feedback of Position Signal

High Frequency Dynamics

Noise and Disturbances

Track Seek Controller

DESIGN OF ACTUATOR SERVO CONTROLLER

Review of Design Methods

PID-Type Control

Factors Limiting Servo Performance

Optimal Control

Advanced Topics

Emergence of Dual-Stage Actuator

Control of Dual-Stage Actuator

SPINDLE MOTOR CONTROL

Magnetic Field Fundamentals

Electric Motor Fundamentals

Spindle Motors Used in HDD

Spindle Motor Drive System

SERVO TRACK WRITER

Introduction

HAD Servowriting

Media STW

Self Servowriting

A Laboratory-Scale Example

Printing the Patterns

BIBLIOGRAPHY

INDEX

About the Series

Automation and Control Engineering

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
SCI041000
SCIENCE / Mechanics / General
TEC007000
TECHNOLOGY & ENGINEERING / Electrical
TEC008000
TECHNOLOGY & ENGINEERING / Electronics / General