Microcomputer Control of Thermal and Mechanical Systems
Microcomputers are having, and will have in the future, a significant impact on the technology of all fields of engineering. The applications of micro computers of various types that are now integrated into engineering include computers and programs for
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Microcomputer Control of Thermal and Mechanical Systems W. F. Stoecker
University of Illinois at Urbana-Champaign
P. A. Stoecker
Hewlett-Packard Company
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VAN NOSTRAND REINHOLD
~ _ _ _ _ _ _ New York
Copyright © 1989 by Van Nostrand Reinhold Softcover reprint of the hardcover 1st edition 1989 Library of Congress Catalog Card Number 88-20869 ISBN-13: 978-1-4684-6562-4 All rights reserved. No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means-graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems-without written permission of the publisher. ISBN-13: 978-1-4684-6562-4 001: 10.1007/978-1-4684-6560-0
e-ISBN-13: 978-1-4684-6560-0
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Library of Congress Cataloging-in-Publication Data Stoecker, W. F. (Wilbert F.), 1925Microcomputer control of thermal and mechanical systems / W. F. Stoecker, P. A. Stoecker. p. cm. Bibliography: p. Includes index. ISBN-13: 978-1-4684-6562-4 1. Automatic control. 2. Microcomputers. 3. Heat engineering· Data processing. 4. Mechanical engineering-Data processing. I. Stoecker, P. A. (Paul A.) II. Title. TJ223.M53S76 1988 629.8'95-dc 19 88-20869
Preface Microcomputers are having, and will have in the future, a significant impact on the technology of all fields of engineering. The applications of microcomputers of various types that are now integrated into engineering include computers and programs for calculations, word processing, and graphics. The focus of this book is on still another objective-that of control. The forms of microcomputers used in control range from small boards dedicated to control a single device to microcomputers that oversee the operation of numerous smaller computers in a building complex or an industrial plant. The mostdramatic growth in control applications recently has been in the microcomputers dedicated to control functions in automobiles, appliances, production machines, farm machines, and almost all devices where intelligent decisions are profitable. Both engineering schools and individual practicing engineers have responded in the past several years to the dramatic growth in microcomputer control applications in thermal and mechanical systems. Universities have established courses in computer control in such departments of engineering as mechanical, civil, agricultural, chemical and others. Instructors and students in these courses see a clear role in the field that complements that of the computer specialist who usually has an electrical engineering or computer science background. The nonEE or nonCS person should first and foremost be co