Xem 1-20 trên 71 kết quả Electronic system components
  • Motion control systems today can be found in such diverse applications as materials handling equipment, machine tool centers, chemical and pharmaceutical process lines, inspection stations, robots, and injection molding machines. Merits of Electric Systems Most motion control systems today are powered by electric motors rather than hydraulic or pneumatic motors or actuators because of the many benefits they offer: • More precise load or tool positioning, resulting in fewer product or process defects and lower material costs.

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  • The field of industrial electronics covers a plethora of problems that must be solved in industrial practice. Electronic systems control many processes that begin with the control of relatively simple devices like electric motors, through more complicated devices such as robots, to the control of entire fabrication processes. An industrial electronics engineer deals with many physical phenomena as well as the sensors that are used to measure them.

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  • Some basic concepts of analogue signals are introduced in this section. You will learn the basic functions of an analogue electronic system, viz. transformation and generation of signals of continuous nature. Here, signal transformation refers to all kinds of manipulation such as filtering (selecting signals of a certain range of frequencies) and amplification (enlarging the magnitude of a signal). Signal generation in the context of analogue electronics can be taken to mean the construction of a signal with a specified waveform, as in the case of a sinusoidal wave generator.

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  • A control system is a collection of components working together under the direction of some machine intelligence. In most cases, electronic circuits provide the intelligence, and electromechanical components such as sensors and motors provide the interface to the physical world. A good example is the modern automobile. Various sensors supply the on-board computer with information about the engine’s condition. The computer then calculates the precise amount of fuel to be injected into the engine and adjusts the ignition timing. T...

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  • PSAT is a Matlab toolbox for static and dynamic analysis and control of electric power systems. The PSAT project began in September 2001, while I was a Ph.D. candidate at the Universit´ degli Studi di Genova, Italy. The first public a version date back to November 2002, when I was a Visiting Scholar at the University of Waterloo, Canada. I am currently maintaining PSAT in the spare time, while I am working as associate professor at the Universidad de Castilla-La Mancha, Ciudad Real, Spain. PSAT is provided free of charge, in the hope it can be useful and other people...

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  • All the designs that become are not for arming them and that works in their beginning, but to only have an approximated idea of the components to use. To remember here one of the laws of Murphy: " If you make something and works, it is that it has omitted something by stop ".The calculations have so much the heuristic form (test and error) like algoritmic (equations)and, therefore, they will be only contingent; that is to say, that one must correct them until reaching the finished result.

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  • This book is mainly intended for designers and users of magnetic components in power electronics. It can also be used for didactical purposes. Magnetic components such as inductors and transformers constitute together with the control and the semiconductor components, the main parts in the design of power electronic converters. Some experience teaches that the design of the magnetic parts is still often done by trial and error. This can be explained by a (too) long working-in time for designing inductors and transformers.

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  • Power Quality Considerations Harmonics • What Are Harmonics? • Harmonic Sequence • Where Do Harmonics Come From? • Effects of Harmonics on the System Voltage • Notching • Effects of Harmonics on Power System Components • Conductors • Three-Phase Neutral Conductors • Transformers • Effects of Harmonics on System Power Factor • Power Factor Correction Capacitors • IEEE Standard 519 Badrul H. Chowdhury University of Missouri–Rolla Hirofumi Akagi Tokyo Institute of Technology Rajapandian Ayyanar Arizona State University 17.

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  • This book has been designed to give plant operators, electricians, field technicians and engineers a better appreciation of the role played by power system protection systems. An understanding of power systems along with correct management, will increase your plant efficiency and performance as well as increasing safety for all concerned. The book is designed to provide an excellent understanding on both theoretical and practical level.

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  • The growing interest in the application of artificial intelligence (AI) techniques to power system engineering has introduced the potentials of using this state-of-the-art technology. AI techniques, unlike strict mathematical methods, have the apparent ability to adapt to nonlinearities and discontinuities commonly found in power systems. The best-known algorithms in this class include evolution programming, genetic algorithms, simulated annealing, tabu search, and neural networks. In the last three decades many papers on these applications have been published.

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  • SYSTEM DESIGN AND CONSUMER BEHAVIOR IN ELECTRONIC COMMERCE Hanushek cautions: “If the efficiency of our school systems is due to poor incentives for teachers and administrators coupled with poor decisionmaking by consumers, it would be unwise to expect much from programs that seek to strengthen ‘market forces’ in the selection of schools,” (1981, p. 34-35; emphasis added). Moreover, if students’ outcomes depend importantly on the characteristics of their classmates (i.e.

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  • This book is dedicated to Prof. Dr. Heinz Gerhäuser on the occasion of his retirement both from the position of Executive Director of the Fraunhofer Institute for Integrated Circuits IIS and from the Endowed Chair of Information Technologies with a Focus on Communication Electronics (LIKE) at Friedrich-Alexander University, Erlangen-Nuremberg. The contributions to this Festschrift were written by Fraunhofer IIS staff and external project team members in grateful appreciation of his lifetime academic achievements and his inspiring and much-valued leadership of Fraunhofer IIS.

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  • Want to know how to use an electronic component? This first book of a three-volume set includes key information on electronics parts for your projects—complete with photographs, schematics, and diagrams. You’ll learn what each one does, how it works, why it’s useful, and what variants exist. No matter how much you know about electronics, you’ll find fascinating details you’ve never come across before.

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  • Information is a crucial component of today's society. With a smaller world, faster communications, and greater interest, information relevant to a person's life, work, and recreation has exploded. However, many believe this is not all good. Richard S. Wurman (in a book entitled Information Anxiety) notes that the information explosion has backfired, leaving us stranded between mere facts and real understanding.

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  • In almost all areas of daily life the demands on the communications infrastructure increased dramatically. With regard to the volume of data that has to be transmitted, no matter whether we are dealing with public or private networks, industrial fields or automobiles, needs will continue to rise. Consequently, the demands on the bandwidth of communications systems will continue to increase since more and more video data streams with high picture quality (IP TV), in addition to telephone and data circuits, will be transmitted.

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  • BACKGROUND Public agencies, private corporations, nonprofit institutions, and other organizations regularly invest millions of dollars in acquiring buildings and other constructed facilities to support their lines of business. For this investment, the owner receives a complex structure composed of hundreds of separate but interrelated components, including roofs, walls, foundations, electrical, plumbing, heating, air con- ditioning, ventilation, fire, communication, safety, and architectural systems.

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  • Components of the machine-readable dictionary can be applied in a number of information systems. The most direct applications of the kind are in wordprocessing or in "writingsupport" systems built on a wordprocessing base. However, because a central function of any dictionary is in fact data verification, there are other proposed applications in communications and data storage and retrieval systems.

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  • OrCAD is a suite of tools from Cadence for the design and layout of printed circuit boards (PCBs). We are currently using version 9.2 of the OrCAD suite. This document will give you a crash course in designing an entire circuit board from start to finish. This will be a very small and simple circuit, but it will demonstrate the major concepts and introduce the tools behind completing a PCB design. After you have completed this tutorial, you will know all the steps needed to make PCBs using OrCAD. This is not, however, a guide to the inner workings of...

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  • Computers now form an integral part of most real-time control systems.With the advent of the microprocessors and microcontrollers in the last few decades the use of computers in control applications has been ever growing. Microcontrollers are single-chip computers which can be used to control real-time systems. Such controllers are also referred to as embedded real-time computers. These devices are low-cost, single-chip and easy to program.

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  • The amount of knowledge an electrician must possess to be able to install and troubleshoot control systems in today’s industry has increased dramatically in recent years. A continuous influx of improved control components allows engineers and electricians to design and install even more sophisticated and complex control systems. Industrial Motor Control presents the solidstate devices common in an industrial environment.

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