W. Higinbotham – författare

Environmental Testing Techniques for Electronics and Materials reviews environmental testing techniques for evaluating the performance of electronic equipment, components, and materials. Environmental test planning, test methods, and instrumentation are described, along with the general environmental conditions under which equipment must operate. This book is comprised of 15 chapters and begins by explaining why environmental testing is necessary and describing the environment in which electronics must operate. The next chapter considers how an environmental test plan is designed; the methods for the environmental testing of components and materials; instrumentation and control of test chambers; shock and vibration test instrumentation; and requirements for specification writing. The reader is then introduced to factors that might affect the reliability of equipment, including high humidity environment; galvanic corrosion problems; high- and low-temperature environments; mechanical and associated hazards; transport hazards; and long-term storage. Problems posed by high altitude and space environments, nuclear radiation, and acoustic noise are also discussed. The final chapter is devoted to environmental protection techniques and looks at the effects of climatic environments on radio interference as well as the effects of the environment on the human operator. This monograph will be of value to materials scientists and electronics engineers as well as those engaged in the design, development, and production of professional and military equipment.

Digital Differential Analysers presents the principles, operations, design, and applications of digital differential analyzers, a machine with the ability to present initial quantities and the possibility of dividing them into separate functional units performing a number of basic mathematical operations. The book discusses the theoretical principles underlying the operation of digital differential analyzers, such as the use of the delta-modulation method and function-generator units. Digital integration methods and the classes of digital differential analyzer designs are also reviewed. The text enumerates the applications of digital differential analyzers, especially in the solution of various mathematical problems, and its applications in automatic control systems. Computer scientists, programmers, computer engineers, systems analysts, mathematicians, and students of computer science will find the book an interesting read.

Energetic Processes in Follow-Up Electrical Control Systems deals systematically with the fundamental energetic problems of the harmonic regime in follow-up electrical control systems. This book discusses the energetics of control systems under no-load conditions; loading by a static torque proportional to velocity; and loading by the static torque of dry friction. The effect of loading on the dynamic characteristics of follow-up control systems and choice of rational design parameters are also covered in this text, including specific points in the theory and energetics of the harmonic regime in follow-up electrical control systems. This publication is a useful reference to students and individuals who intend to gain extensive knowledge on the follow-up electrical control systems.

Electrical Analogues of Pin-Jointed Systems is a compilation of papers from members of the Rostov-on-Don Civil Engineering Institute and of the Taganrog Radiotechnical Institute, dealing with the statics and dynamics of buildings. This collection addresses the problems encountered in building mechanics. This book also discusses the principles of electrical analogues used in calculating solutions to problems involving static and dynamic structural formations. The different methods of electrical analogues are explained such as solving problems related to the resistance of materials. This text then shows the calculations using the equation of three bi-moments for solid beams with different rigidities, as well as other circuits used to calculate stresses in all parts of a static framework. In particular, the text notes that a circuit is capable of calculating the size of the current flowing in other parts of the system the stress found in the main framework. This book further notes the electrical analogues using four terminal networks and for determining the effects of temperature on structural beams and frameworks. For practical considerations, the text points out the analogue built by the Taganrog Radiotechnical Institute . Of interest is an electrical circuit that mimics a beam being shifted out of line during stress encountered from unwanted motion. When the foundation causes shifting of the pillars of a structure, the text explains how the degree of deflection can be calculated by using a formula relevant to electrical analogue use. This collection of articles will prove useful to structural engineers, researchers in structural mechanics, and scientists involved in dynamics and physics.

Electromagnetic Clutches and Couplings contains a detailed description of U.S.S.R. electromagnetic friction clutches, magnetic couplings, and magnetic particle couplings. This book is divided into four chapters. The first chapter discusses the design and construction of magnetic (solenoid-operated) couplings, which are very quick-acting devices and used in low power high-speed servo-systems. Chapter 2 describes the possible fields of application, design, construction, and utilization of magnetic particle couplings. The aspects of construction, design, and utilization of induction clutches (slip clutches), which provide the solution to the problems of speed control with ventilator loads, are covered in Chapters 3 and 4. The last chapters also include a brief discussion on the construction, design, and application of hysteresis and capacitor couplings. This publication provides a valuable background to the design or selection of many electromagnetic clutches and couplings, which is beneficial to readers intending to find the appropriate type of device for particular purposes and performance.

Problems in the Design and Development of 750 MW Turbo-Generators covers selected problems mainly related to projected machines in the development of turbo-generators. This book describes the main lines of research at the Electromechanics Institute of the U.S.S.R. Academy of Sciences. This book is divided into six chapters and begins with an overview of the progress in the generation of electricity along with the rapid economic development of the U.S.S.R. The succeeding chapter deals with the use of efficient cooling system of the winding copper to address the problem of electrical machine''s unit power performance. The discussion then shifts to a theoretical analysis of the so-called "geometric series" of large turbo-generators. A chapter examines the problems related to design of these machines, specifically the main mechanical factors limiting the dimensions of turbo-generators. The concluding chapters provide a summary of the results of the planned increase in unit output of the single-shaft 750 MW turbo-generator. This book is intended primarily to engineers, metallurgists, and scientists who deal with the problems in the development of very large turbo-generators.

Sampling Systems Theory and its Application, Volume 2 is a two-chapter text that focuses on closed pulse systems. The first chapter highlights the fundamentals of closed pulse systems. This chapter particularly tackles the equations, transfer functions, stability, frequency, characteristics, processes, and synthesis of these systems. The second chapter discusses the automatic temperature, ranging, and frequency control system and non-contact servo-system of closed pulse systems. This chapter also looks into the smoothing and prediction of discrete data in digital computers. This book will prove useful to mathematicians, engineers, and physicists.

Excitation Control is a translation from the Russian and deals with the principles of control related to the use of excitation as a controlling or regulating effect. This book discusses the research made on different ways to control various objects through automatic regulation, and the laws or principles behind any of these developments. The text focuses on the controls associated with the principle of excitation (invariance) regulation, as well as, the relevant methods and procedures of measurement, transmission or conversion of information in control and regulation systems. The book describes the principal types of automatic control systems and measuring devices that operate on excitation. The author also explains the elements of the theory of automatic control systems that operate on excitation such as the conditions of absolute invariance and the realizability of these conditions. The book then presents examples of calculations concerning combined tracing systems and automatic control systems. This book can prove useful for mathematicians, students, and professor advanced mathematics or physics. Engineers or technicians interested in automatic control and regulation will find this book valuable.

International Series of Monographs on Electronics and Instrumentation, Volume 20: High Sensitivity Counting Techniques details the low background counting techniques for radiation detection. The book covers various areas of concerns in utilizing low background counting technique. The text first details the counting parameters, and then proceeds to discussing the attainment of low backgrounds in radiation detectors. Next, the selection deals with low background laboratories. The remaining chapters cover various quantification methods such as carbon-14 beta counting; counting of soft radiations using internal sources; and measurement of gamma radioactivity from the body. The book will be of great interest to scientists, engineers, and technicians involved in atomic energy projects.

Electronics and Instrumentation, Second Edition, Volume 3: Probability and Information Theory with Applications to Radar provides information pertinent to the development on research carried out in electronics and applied physics. This book presents the established mathematical techniques that provide the code in which so much of the mathematical theory of electronics and radar is expressed. Organized into eight chapters, this edition begins with an overview of the geometry of probability distributions in which moments play a significant role. This text then examines the mathematical methods in electronics, which rest to an extraordinary degree upon the methods of time-and-frequency analysis. Other chapters consider the exponential dependence of the number of states on the number of units that immediately suggests a logarithmic measure of capacity. This book discusses as well the threshold of intelligibility that depends on the bandwidth of the transmitted signal. The final chapter deals with the simple applications of direct probabilities to radar theory. This book is a valuable resource for radar engineers.

Electronics and Instrumentation, Volume 24: Transient Phenomena in Electrical Power Systems presents the methods for calculating the stability and the transient behavior of systems with forced excitation control. This book provides information pertinent to the analysis of transient phenomena in electro-mechanical systems. Organized into five chapters, this volume begins with an overview of the principal requirements in an excitation system. This text then explains the electromagnetic and electro-mechanical phenomena, taking into account the mutual action between the components of the system. Other chapters consider the behavior of an electrical system subjected to small disturbances from a steady state, which is important in assessing the operation of the system under normal conditions. This book discusses as well the ability of a system to return to its initial state following a small disturbance. The final chapter deals with the operational characteristics of an electrical power system. This book is a valuable resource for engineers and scientists.

Electronic and Instrumentation, Volume 11: Frequency Modulation Theory: Application to Microwave Links covers the theoretical principles of microwave beam technique. This five-chapter text particularly discusses the propagation of the waves used, frequency modulation, and noise and sundry distortions liable to arise either in the course of propagation, in the equipment, and in the methods used for the transmission of the information. Chapter 1 examines the transfer of the radio-frequency energy over a given path. This chapter describes the properties of propagation of radio waves, including metric, decimetric and centimetric, through the troposphere. Chapter 2 concerns all the general problems of frequency modulation, while chapter 3 deals with the propagation distortion, which is apparent in a variable-velocity guided transmission channel, and, which appears on an echoing path either in free space, or over a badly matched feeder. Chapter 4 discusses the complete problem of telephony and television transmissions over radio links. This chapter also considers in detail the requisite conditions for meeting the international standards. Chapter 5 deals with all the applied techniques, with an emphasis on radio link equipment. This book will be of great value to students and non-specialized and specialized engineers who wish to become familiar with microwave beam technique.

Transient Phenomena in Electrical Power Systems analyzes transient phenomena in electro-mechanical systems, and of the steady conditions which precede or follow such transient condition. The book deals with the short-period transient processes connected with changes in the electro-mechanical condition of the system, the normal steady state, and also the steady fault condition. The text also investigates electro-mechanical and electromagnetic phenomena, including the inter-actions of the components in the system, with emphasis on the determination of conditions leading to stability. The book deals with transient phenomena either by assuming linearity for all circuit parameters, or by allowing for some non-linearity. The text progresses from simplified physical concepts to more rigorous developments of appropriate mathematical models using principles related to the laws of mechanics and to the laws of electromagnetism. The book recommends practical stability calculations, some methods of improving power-handling capacities, as well as the stability of transmission lines and power systems. The book is beneficial to electrical engineers, technical designers, and structural engineers whose works are related with power generation or hydro-electric stations.

Environmental Testing Techniques for Electronics and Materials focuses on environmental testing that is vital in evaluating the performance of electronic equipment, components, and materials. This book discusses the climatic environments and world-wide operations of equipment in hot, cold, and humid areas of the earth as underdeveloped countries use more and more electronics and associated equipment. The environmental evaluation of products in exporting, which is an essential preliminary to successful sales in third world countries are also described. This text likewise describes considerable experiences obtained in the military fields of vibration, shock, and satellite environments. This publication is valuable to specialists and individuals engaged in the design, development, and production of professional and military equipment.