Instrumentation for Engineers and Scientists

by John Turner, Martyn Hill

Overview

This book was developed from material prepared for a course in instrumentation for final year mechanical engineering undergraduates. The approach used is to present instrumentation from the viewpoints of both electronics and signal analysis. The sensors and electronic circuits likely to be needed by a final year student project and for postgraduate research, are comprehensively covered. It forms a suitable degree-level text for students of engineering, science or medicine seeking a practical guide to instrumentation. It is also hoped that the book will be of use to practising engineers in general. The authors' aim throughout has been to write a book which guides the reader through the intricacies of specifying and selecting an instrumentation system, acquiring data without corrupting or distorting it in the process, and applying sensible signal analysis techniques. Examples and case studies are used to illustrate the techniques discussed, including many drawn from real-life instrumentation problems encountered by the authors in engineering, physics and medicine. The sequence of chapters follows the flow of data from the primary sensing element, through transduction, signal processing and digital conversion to digital signal analysis techniques. This logical sequence ensures that the design process is undertaken in the correct order, and provides continuity for the reader.

Product Details

ISBN-13:	9780198565178
Publisher:	Oxford University Press
Publication date:	05/27/1999
Series:	Textbooks in Electrical and Electronic Engineering , #8
Pages:	208
Product dimensions:	5.90(w) x 9.10(h) x 0.50(d)

Table of Contents

1. General design of instrumentation systems—error analysis1.1. Introduction1.2. Generalized instrumentation design1.3. Error analysis and the performance of a measurement system1.4. Conclusions2. Temperature sensors2.1. Introduction2.2. Resistive temperature transducers2.3. Thermocouples2.4. Bimetallic temperature sensors2.5. PN junction sensors2.6. Liquid crystal temperature soars2.7. Infra-red emission and pyrometry2.8. Heat flux gauges3. Displacement sensing3.1. Introduction3.2. Potentiometers3.3. Inductive displacemtn transducers3.4. Capacitive displacement transducers3.5. Optical motion sensors3.6. Ultrasonic displacement transducers3.7. Hall effect motion sensors4. Velocity and acceleration transducers4.1. Introduction4.2. Accelerometer and seismometer theory4.3. Longitudinal velocity sensing4.4. Rotational velocity sensing4.5. Accelerometer designs5. Strain measurement techniques5.1. Introduction5.2. Wire and foil strain gauges5.3. Semiconductor strain gauges5.4. Thick film strain gauges5.5. Strain gauge transducers5.6. Bridge circuits for strain gauge transducers5.7. Summary6. Pressure sensors6.1. Introduction6.2. Elastic pressure sensors6.3. Capacitance pressure sensors6.4. Pressure switches6.5. Pressure sensor environmental considerations7. Torque and mechanical power measurement7.1. Introduction and definitions7.2. Mechanical methods of troque measurement7.3. Strain gauge torque transducers7.4. Torsion bars7.5. Non-contact magnetic methods7.6. Surface acoustic wave (SAW) torque transducers8. Flow sensors8.1. Introduction8.2. Vector flow transducers8.3. Volumer flow sensors8.4. Laser Doppler and correlation flow transducers8.5. Ultrasonic flowmeters8.6. Vortex shedding flowmeters9. Signal conditioning circuits9.1. Introduction9.2. Operational amplifier circuit basics9.3. Analyzing operational circuit basics9.4. Frequency response and gain-bandwidth product9.5. The op-amp's departures from ideal behavior9.6. Operational amplifier circuit selection9.7. Common operational amplifier circuits10. Signal conversion and data acquisition10.1. Introduction10.2. Analog to digital conversion10.3. Computer-based data acquisition11. Signal analysis—frequency domain techniques11.1. Introduction11.2. The Fourier series11.3. The Fourier transform11.4. Digital frequency analysis—the discrete Fourier transform11.5. Sampling and aliasing11.6. WindowingChapters 2-11 end with ReferencesIndex