Instrumentation in Process Control

Instrumentation in Process Control

1st Edition - January 1, 1972

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  • Author: E. J. Wightman
  • eBook ISBN: 9781483163352

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Description

Instrumentation in Process Control details the elements of transducers utilized in doing various measurements. The book also deals with the problems in data gathering from physical processes. The text also examines the different schemes of relaying or showing the data and compares the many ways by which data could be processed. The first chapter opens with an introduction to the study; it then proceeds to talk about primary measurements and notes the importance of selecting the transducer, having precision in measurements, and having a properly designed system. This chapter also presents various tips with regards to a better measurement and data handling. Chapter 2 is about interpreting a transducer's performance, while the next several chapters revolve around measurements. Measurements discussed include those for temperature, pressure, liquid density, displacement, and flow. The book highlights in Chapter 8 the tachometry and provides in Chapters 9 and 10 the lessons on analogue-to-digital conversions. The last three chapters are reserved for computing corrections, data transmission, and digital control techniques, including the fundamentals of these concepts. The text is a great reference and beneficial for students, teachers, researchers, and casual readers, as the book offers a wide information on instrumentation.

Table of Contents


  • Chapter 1 Introduction

    Objectives

    Primary Measurements

    Computing Corrections

    Data Transmission and Recording

    System Applications

    Chapter 2 Transducer Performance

    Introduction

    Definitions of Terms

    Interpreting Performance Specification

    Graphical Interpretation of Transducer Performance

    Measurement Techniques

    Signal Interference

    Practical Methods of Minimizing Interference

    The Overall System

    Chapter 3 Temperature Measurement

    Introduction

    Thermocouples

    Resistance Thermometry

    Thermistors

    Advantages and Disadvantages

    Chapter 4 Pressure Measurement

    Introduction

    Calibration Standards

    Terminology

    Potentiometric-Type Transducers

    Differential Transducers and Variable-Reluctance Type Transducers

    Strain-Gauge Pressure Transducers

    Force-Balance Transducers

    Solid-State Pressure Transducers

    Transducer Selection

    Chapter 5 Liquid Density Measurement

    Introduction

    Application Problems

    Sperry Gravitymaster

    Solartron Vibrating Tube Densitometer

    Agar Vibrating Spool Densitometer

    Linearizing Problems

    Chapter 6 Displacement Measurement

    Introduction

    Potentiometric Displacement Transducers

    Linear Voltage Differential Transformers

    Synchro Transformers

    Digital Decoding Transducers

    Applications

    Chapter 7 Flow Measuring Systems

    Introduction

    Differential Pressure-Related Systems

    Turbine Meters

    Electromagnetic Flowmeters

    Positive Displacement Meters

    Mass Flow Measurement

    Advantages and Disadvantages

    Chapter 8 Tachometry

    Introduction

    D.C. Tachometry

    A.C. Tachometry

    Digital Tachometry

    Digital Counting Techniques

    Accuracy and Reliability of Tachometers

    Chapter 9 Analogue-to-Digital Conversion

    Introduction

    Signal Conditioning and Amplification

    Fundamentals of Electronic Counting

    Definitions of Performance of A-D Converters

    A-D Conversion Techniques

    Choosing a Converter

    Chapter 10 System Application of A-D Converters

    Introduction

    Time-Shared Digital Voltmeter Applications

    Pulse Duration Modulation Systems

    Frequency Modulated Systems

    Computer Interface Problems

    Chapter 11 Computing Corrections

    Introduction

    General Requirements

    Fundamentals of Analogue/Digital Computing

    Fundamentals of Hybrid Computing

    Hybrid Solution

    Non-Linear Functions

    Speed of Computation

    Special Purpose Computing Techniques

    Accuracy

    Chapter 12 Data Transmission

    Introduction

    Requirements of a Data Transmission System

    Notes on Coding

    Timing

    Modulation Techniques

    Error Detection and Correction

    Industrial Telemetry Systems

    Salient Features

    Chapter 13 Digital Control Techniques

    Introduction

    Review of Control Principles

    System Applications

    Appendix. Glossary of Terms

    Bibliography

    Index


Product details

  • No. of pages: 380
  • Language: English
  • Copyright: © Butterworth-Heinemann 1972
  • Published: January 1, 1972
  • Imprint: Butterworth-Heinemann
  • eBook ISBN: 9781483163352

About the Author

E. J. Wightman

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