成人无码电影网页在线观看,亚洲黄片在线看,18禁黄网站禁片免费观看av

內容簡介

　　《過程控制儀表技術（第8版）》共分為兩部分，第一部分為前6章，作者從人們對生產設備手動操作的實際經驗出發(fā)，系統(tǒng)地介紹了控制原理、控制設備和控制系統(tǒng)的基本概念。在測量信號的變換和處理方面，把工業(yè)儀表中的模擬電路、可編程控制器（PLC）及信號采集系統(tǒng)中的數(shù)字電路結合工業(yè)電子學中的基本理論融會貫通加以介紹。在測量信號的獲取方面，重點對溫度、機械量和光學傳感器的原理、器件、特性和應用進行丁詳細的分析。書中第二部分為后6章，首先講述了控制信號的類型和執(zhí)行器，接著重點介紹了離散、連續(xù)、計算機及總線網絡控制系統(tǒng)的構成、特點和技術指標。結合系統(tǒng)的要求，講解了PLC的原理和編程方法，位式控制、PID概念及模擬調節(jié)器，工業(yè)控制計算機硬件、軟件的配置等內容。最后介紹了串級和多變量控制系統(tǒng)以及系統(tǒng)的調節(jié)質量評定和調節(jié)參數(shù)的整定方法。

作者簡介

暫缺《過程控制儀表技術（第8版）》作者簡介

圖書目錄

1 INTRODUCTION TO PROCESS CONTROL1
Instructional Objectives 1
1.1 Introduction 1
1.2 Control Systems 2
1.3 Process-Control Block Diagram 6
1.4 Control System Evaluation 10
Regulation 1 1.4.4 Evaluation Criteria
1.5 Analog and Digital Processing 14
1.6 Units， Standards， And Definitions 22
1.7 Sensor Time Response 36
1.8 Significance and Statistics 40
Summary | Problems | Supplementary Problems
2 ANALOG SIGNAL CONDITIONING 53
Instructional Objectives 53
2.1 Introduction 53
2.2 Principles of Analog Signal Conditioning 54
2.3 Passive Circuits 58
2.4 OperationalAmplifiers 83
2.5 OP Amp Circuits in instrumentation 89
2.6 Design Guidelines 102
Summary | Problems | Supplementary Problems
3 DIGITAL SIGNAL CONDITIONING 115
Instructional Objectives 115
3.1 Introduction 115
3.2 Review of Digital Fundamentals 116
3.3 Converters 125
3.4 Data-Acquisition Systems 155
3.5 Characteristics of Digital Data 160
Summary | Problems | Supplementary Problems
4 THERMALSENSORS 175
Instructional Objectives 175
4.1 Introduction 175
4.2 Definition of Temperature 176
4.3 Metal Resistance versus Temperature Devices 180
4.4 Thetristors 189
4.5 Thermocouples 193
4.6 OtherThermal Sensors 204
4.7 Design Considerations 211
Summary | Problems | SuDDlementary Problems
5 MECHANICALSENSORS 223
Instructional Objectives 223
5.1 Intfoduction 223
5.2 Displacement， Location， or Position Sensors 224
5.3 St fain Sensors 232
5.4 Motion Sensors 246
5.5 Pressure Sensors 258
5.6 Flow Sensors 267
Summary | Problems | SUDDlementanl Problems
6 OPTICALSENSORS 285
Instructional Obiectives 285
6.1 Intfoduction 285
6.2 Fundamentals of EM Radiation 286
6.3 Photodetectors 296
6.4 Pyrometry 311
6.5 Optical Sources 316
6.6 Applications 322
Summary | Problems | Supplementary Problems
7 FINALCONTROL 333
7.1 Intfoduction 333
7.2 Final Control Operation 334
7.3 Signal Conversions 336
7.4 Power Electronics 342
7.5 Actuators 358
7.6 Control Elements 371
summary | Problems | Supplementary Problems
8 DISCRETE-STATE PROCESS CONTROL 387
8.1 Introduction 387
8.2 Definition of Discrete-State Process Control 388
8.3 Characteristics of the System 389
8.4 Relay Controllers and Ladder Diagrams 403
8.5 Programmable Logic Controllers (PLCs) 413
summary | Problems | Supplementary Problems
9 CONTROLLER PRINCIPLES 439
9.1 introduction 439
9.2 Process Characteristics 440
9.3 Control System Parameters 442
9.4 Discontinuous Controller Modes 448
9.5 Continuous Controller Modes 457
9.6 Composite Control Modes 466
Summary | Problems | SupDlementary Problems
10 ANALOG CONTROLLERS 481
10.1 intfoduction 481
10.2 General Features 482
10.3 Electronic Controllers 483
10.4 Pneumatic Controllers 500
10.5 Design Considerations 504
summary | Problems | SuDDlementary Problems
11 COMPUTER-BASED CONTROL 513
11.1 Introduction 513
11.2 Digital Applications 514
11.3 Computer-Based Controller 519
11.4 Other Computer Applications 533
11.5 Control SVstem Networks 540
11.6 Computer Controller Examples 550
summary | Problems | Supplementary Problems
12 CONTROL-LOOP CHARACTERISTICS 559
12.1 Introduction 559
12.2 Control System Configurations 560
12.3 Multivariable Control SVstems 564
12.4 Control SVstem Quality 568
12.5 StabilitV 575
12.6 Process-Loop Tuning 580
summary | Problems | SupplementarV Problems
APPENDIXES 599
REFERENCES 636
GLOSSARY 637
acal UTIONS TO THE ODD-NUMBERED PROBLEMS 641
SOLUTIONS TO THE ODD-NUMBERED PROBLEMS 641
INDEX687