本书的作者有长达10年的可工程技术工作经历，本书既可作为自动控制理论、自动控制系统等课程的高校教材，亦是一本有价值的工程技术案头参考书，全书由五部分组成，思路开阔，内容由浅入深，层次分明，系统性强。章末的练习让学生解决不同难易程度的实际问题。这些练习按节编排，先是给出多个简单问题巩固知识，随后是更多复杂问题以激发学生的学习兴趣。

本书既可作为自动控制理论、自动控制系统等课程的高校教材，亦是一本有价值的工程技术案头参考书，其显著特点如下：一、讲解建模和分析时，将电学、流体学、热学及机械学中的各种元件进行类比，帮助学生将一类元件的知识转换到另一类。二、章末的练习让学生解决不同难易程度的实际问题。这些练习按节编排，先是给出多个简单问题巩固知识，随后是更多复杂问题以激发学生的学习兴趣。

Preface VII

PART0NE  INTRODUCTIOI

CHAPTER I Basic Concepts and Terminology 

       1.1  Introduction 

       1.2  Block Diagrams and Transfer Functions

       1.3  Open-Loop Control 

       1.4  Closed-Loop Control: Feedback 

       1.5  Control System Drawings 

       1.6  Nonlinearities 

       1.7  Benefits of Automatic Control  

       1.8  Load Changes  

       1.9  Damping and Instability 

       1.11  Criteria of Good Control  

       1.12  Block Diagram Simplification 

CHAPTER 2 Types of Control 

       2.1  Introduction 

       2.2  Analog and Digital Control  

       2.3  Regulator and Follow-Up Systems  

       2.4  Process Control 

       2.5  Servomechanisms  

       2.6  Sequential Control 

       2.7  Numerical Control  

       2.8  Robotics  

        Contents                               

      2.9  The Evolution of Control Systems

      2.10  Examples of Control Systems

CHAPTER 3 The Common Elements of System Components

      3.1   Introduction

      3.2  Electrical Elements

      3.3  Liquid Flow Elements

      3.4  Gas Flow Elements

      3.5  Thermal Elements

      3.6  Mechanical Elements

CHAPTER 4 Laplace Transforms and Transfer Functions

      4.1   Introduction

      4.2  Input/Output Relationships

      4.3  Laplace Transforms

      4.4  Inverse Laplace Transforms

      4.5  Transfer Functions

      4.6  Initial and Final Value Theorems

      4.7  Frequency Response: Bode Plots

PARTTW0 MEASUREMENT

CHAPTER 5 Measuring Instrument Characteristics

       5.1  Introduction

       5.2  Statistics

       5.3  Operating Characteristics

       5.4  Static Characteristics

       5.5   Dynamic Characteristics

       5.6  Selection Criteria

CHAPTER 6 Signal Conditioning

       6.1  Introduction

       6.2  The Operational Amplifier

       6,3  Op-Amp Circuits

       6.4  Analog Signal Conditioning

       6.5  Digital Signaling Conditioning

CHAPTER 7 Position, Motion, and Force Sensors

       7.1   Introduction

       7.2  Position and Displacement Measurement

Contents

       7.3  Velocity Measurement

       7.4  Acceleration Measurement

       7.5   Force Measurement

CHAPTER 8 Process Variable Sensors

       8.1   Temperature Measurement

       8.2  Flow Rate Measurement

       8.3  Pressure Measurement

       8.4  Liquid Level Measurement

PARTTHREE MANIPULATK

CHAPTER 9 Switches, Actuators, Valves, and Heaters

       9.1  Mechanical Switching Components

       9.2  Solid-State Components

       9.3  Hydraulic and Pneumatic Valves and Actuators

       9.4  Control Valves

       9.5  Electric Heating Elements

CHAPTER I0 Electric Motors

       10.1  Introduction

       10.2  AC Motors

       10.3  DC Motors

       10.4  Stepping Motors

       10.5  AC Adjustable-Speed Drives

       10.6  DC Motor Amplifiers and Drives

PARTFOUR CONTR

CHAPTER 11 Control of Discrete Processes

       11.1  Introduction

       11.2  Time-Driven Sequential Processes

       11.3  Event-Driven Sequential Processes

       11.4  Time/Event-Driven Sequential Processes

CHAPTER 12 Programmable Logic Controllers

       12.1 Introduction

       12.2 PLC Hardwarev

Contents                                      

       12.3  PLC Programming and Operation

       12.4  PLC Programming Functions

CHAPTER 13 Control of Continuous Processes

       13.1  Introduction

       13.2  Modes of Control

       13.3  Electronic Analog Controllers

       13.4  Digital Controllers

       13.5  Advanced Control

       13.6  Fuzzy Logic Controllers

PARTFIVE ANALYSIS AND DESIGN

CHAPTER 14 Process Characteristics

       14.1  Introduction

       14.2  The Integral or Ramp Process

       14.3  The First-Order Lag Process

       14.4  The Second-Order Lag Process

       14.5  The Dead-Time Process

       14.6  The First-Order Lag Plus Dead-Time Process

CHAPTER 15 Methods of Analysis

       15.1  Introduction

       15.2  Overall Bode Diagram of Several Components

       15.3  Open-Loop Bode Diagrams

       15.4  Closed-Loop Bode Diagrams

       15.5  Error Ratio and Deviation Ratio

       15.6  Computer-Aided Bode Plots

       15.7  Stability

       15.8  Gain and Phase Margin

       15.9  Nyquist Stability Criterion

       15.10 Root Locus

CHAPTER 16 Controller Design

       16.1  Introduction

       16.2  The Ultimate Cycle Method

       16.3  The Process Reaction Method

       16.4  Self-Tuning Adaptive Controllers

       16.5  Computer-Aided PID Controller Design

       16.6  Example Design of a Three-Loop Control System

       16.7  Control System Compensation

Contents

APPENDIX A Properties at Materials

       Properties of Solids

       Melting Point and Latent Heat of Fusion

       Properties of Liquids

       Properties of Gases

       Standard Atmospheric Conditions

APPENDIX B Units and Conversion

       Systems of Units

       Conversion Factors

APPENDIX C Binary Codes

       Powers of 2

       Octal and Binary Equivalents

       Decimal, Hexadecimal, and Binary Equivalents

       One's and Two's Complements

       The Gray Code

       Binary Codes for Decimal Digits

       Seven-Bit ASCII Code

APPENDIX D Instrumentation Symbols and Identification

       Purpose

       Scope

       Definition

       Outline of the Identification System

APPENDIX E Complex Numbers

       Introduction

       Rectangular and Polar Forms of Complex Numbers

       Conversion of Complex Numbers

       Graphical Representation of Complex Numbers

       Addition and Subtraction of Complex Numbers

       Multiplication and Division of Complex Numbers

       Integer Power of a Complex Number

       Roots of a Complex Number

APPENDIX F Communications

       Communication Interfaces

       Local Area Networks

       Communication Protocols