Frequency Measurement and Control

Author: Chronos Group

Publisher: Springer Science & Business Media

ISBN: 1461525020

Category: Technology & Engineering

Page: 340

View: 2918

Periodical phenomena or, more precisely, quasiperiodical phenomena, occupy a central position in physics. For a long time, their most important parameter has been their period. However, nowadays, we are much more interested in their frequency, and the many reasons for this are discussed in this book. Throughout history, evaluations of time have been based on periodical phenomena such as the apparent motion of the Sun. Indeed, the oldest unit of time is the day. The apparent motion of the Moon and of the celestial sphere, including changes in the appearance of the former, provided longer units, namely, week, month and year. All these periodical phenomen- the natural clocks - were obviously well suited to the observation and prediction of the evolution of nature with its seasonal rhythm. The gnomon and the clepsydra gave reasonably precise subdivisions of the day that could be used in timing human activities, so long as they were mostly agricultural. The invention of the pendulum and of balance wheel clocks marked the dawn of industrial civilisation, which soon de manded measurements of time with ever increasing precision over shorter and shorter periods.
Posted in Technology & Engineering

Frequency Measurement and Control

Advanced Techniques and Future Trends

Author: Andre N. Luiten

Publisher: Springer Science & Business Media

ISBN: 3540449914

Category: Technology & Engineering

Page: 397

View: 754

This text on precision frequency measurement and its key enabling techniques includes reviews written by some of the most experienced researchers in their respective fields. This text should prove useful to researchers just entering the field of frequency metrology and standards, or equally well to the experienced practitioner.
Posted in Technology & Engineering

Electronic Measurements and Instrumentation

Author: A.V.Bakshi U.A.Bakshi

Publisher: Technical Publications

ISBN: 9788189411244

Category:

Page: 569

View: 2669

Theory of MeasurementPerformance Characteristics : Static & Dynamic standards, Error analysis : Sources, Types and Statistical analysis.TransducersPassive transducers : Resistive, Inductive and capacitiveActive transducers : Thermoelectrics, piezoelectric and photoelectric.Bridges : Direct current and alternating current bridges, LCR bridges.Analog MetersAC analog meters : Average Peak and RMS responding voltmeters, sampling voltmeters. Electronics Analog meters : Electronics analog DC and AC voltmeter and ammeters, Electronic analog ohmmeter and multimeter.Digital MetersAnalog to digital converter : Transfer characteristics, A/D Conversion techniques : Simple potentiometric and servo method, Successive approximation, Ramp type, Integrating and Dual-slope integrating method.D/A Converter : Transfer characteristics, D/A Conversion techniques, Digital mode of operation, Performance characteristics of D/A converters.Display devices : Decimal, BCD and straight binary number, Indicating system, Numeric and alphanumeric display using LCD and LED, Specification of digital meters : Display digit and Counts resolution, Sensitivity, Accuracy, Speed and Settling time etc.Oscilloscopes and RF MeasurementTypes of oscilloscopes, Controls, Measurements : Voltage, Frequency, Time and Phase. High frequency measurements - RF impedancy.Probes : Types of probes, Probe loading and Measurement effect, Probe specifications.Signal Generators and AnalyzersSignal Generators : Sine-wave, Non-sinusoidal and Function generators, Frequency synthesis techniques and digital signal generators.Signal Analyzers : Distortion, Wave and Network spectrum analyzers.
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Instrumentation for Process Measurement and Control, Third Editon

Author: Norman A. Anderson

Publisher: CRC Press

ISBN: 9780849398711

Category: Science

Page: 512

View: 7277

The perennially bestselling third edition of Norman A. Anderson's Instrumentation for Process Measurement and Control provides an outstanding and practical reference for both students and practitioners. It introduces the fields of process measurement and feedback control and bridges the gap between basic technology and more sophisticated systems. Keeping mathematics to a minimum, the material meets the needs of the instrumentation engineer or technician who must learn how equipment operates. I t covers pneumatic and electronic control systems, actuators and valves, control loop adjustment, combination control systems, and process computers and simulation
Posted in Science

Laser-Based Measurements for Time and Frequency Domain Applications

A Handbook

Author: Pasquale Maddaloni,Marco Bellini,Paolo De Natale

Publisher: Taylor & Francis

ISBN: 1439841535

Category: Technology & Engineering

Page: 764

View: 5401

Foreword by Nobel laureate Professor Theodor W. Hänsch of Ludwig-Maximilians-Universität München Based on the authors’ experimental work over the last 25 years, Laser-Based Measurements for Time and Frequency Domain Applications: A Handbook presents basic concepts, state-of-the-art applications, and future trends in optical, atomic, and molecular physics. It provides all the background information on the main kinds of laser sources and techniques, offers a detailed account of the most recent results obtained for time- and frequency-domain applications of lasers, and develops the theoretical framework necessary for understanding the experimental applications. After a historical introduction, the book describes the basic concepts and mathematical tools required for studying the physics of oscillators. It then discusses microwave and optical resonators, crucial aspects of operation and fundamental properties of lasers, and precision spectroscopy and absolute frequency metrology. It also focuses on microwave and optical frequency standards and explores current and potential research directions. Accessible to scientists, postdoc researchers, and advanced undergraduate students, this self-contained book gives a wide-ranging, balanced overview of the areas—including frequency standards and clocks, ultra-high-precision spectroscopy, quantum information, and environmental metrology—revolutionized by the recent advent of optical frequency comb synthesizers (OFCSs) based on femtosecond mode-locked lasers. The book is also a useful guide to cutting-edge research for manufacturers of advanced laser systems and optical devices.
Posted in Technology & Engineering

Quantum Measurement and Control

Author: Howard M. Wiseman,Gerard J. Milburn

Publisher: Cambridge University Press

ISBN: 0521804426

Category: Science

Page: 460

View: 3016

Modern quantum measurement for graduate students and researchers in quantum information, quantum metrology, quantum control and related fields.
Posted in Science

Control of Energy Storage

Author: William Holderbaum

Publisher: MDPI

ISBN: 3038424943

Category: Science

Page: 318

View: 3612

This book is a printed edition of the Special Issue "Control of Energy Storage" that was published in Energies
Posted in Science

Measurement and Control of Charged Particle Beams

Author: Michiko G. Minty,Frank Zimmermann

Publisher: Springer Science & Business Media

ISBN: 9783540441878

Category: Science

Page: 364

View: 8539

This advanced textbook and reference is the first comprehensive and systematic review of all methods used for the measurement, correction, and control of the beam dynamics of modern particle accelerators. Based on material presented in several lectures at the US Particle Accelerator School, the text is intended for graduate students starting research or work in the field of beam physics. Relativistic beams in linear accelerators and storage rings provide the focus. After a review of linear optics, the text addresses basic and advanced techniques for beam control, plus a variety of methods for the manipulation of particle-beam properties. In each case, specific procedures are illustrated by examples from operational accelerators, e.g., CERN, DESY, SLAC, KEK, LBNL, and FNAL. The book also treats special topics such as injection and extraction methods, beam cooling, spin transport, and polarization. Problems and solutions enhance the book’s usefulness in graduate courses.
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Measurement and Instrumentation Principles

Author: Alan S Morris

Publisher: Elsevier

ISBN: 0080496482

Category: Technology & Engineering

Page: 512

View: 5290

'Measurement and Instrumentation Principles' is the latest edition of a successful book that introduces undergraduate students to the measurement principles and the range of sensors and instruments that are used for measuring physical variables. Completely updated to include new technologies such as smart sensors, displays and interfaces, the 3rd edition also contains plenty of worked examples and self-assessment questions (and solutions). In addition, a new chapter on safety issues focuses on the legal framework, electrical safety and failsafe designs, and the author has also concentrated on RF and optical wireless communications. Fully up-to-date and comprehensively written, this textbook is essential for all engineering undergraduates, especially those in the first two years of their course. Completely updated Includes new technologies such as smart sensors and displays
Posted in Technology & Engineering

Measurement and control for batch manufacturing

presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Phoenix, Arizona, November 14-19, 1982

Author: American Society of Mechanical Engineers. Winter Meeting,American Society of Mechanical Engineers. Dynamic Systems and Control Division

Publisher: N.A

ISBN: N.A

Category: Technology & Engineering

Page: 195

View: 1168

Posted in Technology & Engineering

An Introduction to Umts Technology

Testing, Specifications and Standard Bodies for Engineers and Managers

Author: Faris Muhammad

Publisher: Universal-Publishers

ISBN: 1599424584

Category: Technology & Engineering

Page: 344

View: 2762

An Introduction to UMTS: Specifications, Testing and Standards Bodies is the most comprehensive text for practicing engineers and technicians about testing, specification and standards bodies of cellular communications equipment. It is aimed at those responsible for developing and maintaining both mobile and base station units. Each chapter discusses in detail the necessary elements moving to the more advanced components. In addition to testing, specification and standards bodies, readers will learn: the development life cycle of UE and Node-B building blocks; what needs to be tested; when and how testing should be performed; as well as certification formalities, including processes and procedures; and testing tools and languages. Hardcover edition $119.95
Posted in Technology & Engineering

Millimetre-Wave Optics, Devices and Systems

Author: J.C.G Lesurf

Publisher: CRC Press

ISBN: 9780852741290

Category: Technology & Engineering

Page: 266

View: 352

The millimetre-wavelength region of the electromagnetic spectrum is increasingly exploited for a wide range of commercial, industrial, and military applications. Conventionally, this region is considered as lying "above" microwaves and "below" the infrared. Hence, in practice, millimetre-wave scientists have tended to pick and mix useful techniques on an empirical basis from both these areas. Millimetre-Wave Optics, Devices and Systems describes the fundamental physics of the quasi-optical techniques, devices, and system design for instruments processing millimetre-wave signals. Relevant ideas from Gaussian beam mode theory and antenna and transmission line theory are brought together to show the underlying unity of optics and electronics. Aimed at advanced undergraduates and postgraduates as well as millimetre-wave, laser optics, antenna, and microwave engineers, this book will also be of interest to manufacturers of millimetre-wave and microwave equipment.
Posted in Technology & Engineering

The Measurement, Instrumentation, and Sensors

Handbook

Author: John G. Webster

Publisher: Springer Science & Business Media

ISBN: 9783540648307

Category: Technology & Engineering

Page: 1500

View: 9630

This detailed handbook describes current uses of instruments and techniques for practical measurements, including essential mathematical treatment to discover applications and solve problems. It reflects the tremendous changes and rapid advances in electronic communication, fibre optics and imaging technologies.
Posted in Technology & Engineering

Solid-Liquid Interfaces

Macroscopic Phenomena — Microscopic Understanding

Author: Klaus Wandelt,Stephen Thurgate

Publisher: Springer Science & Business Media

ISBN: 3540425837

Category: Technology & Engineering

Page: 446

View: 9161

Using combinations of in situ and ex situ experimental methods, fundamental and relevant phenomena such as adsorption and desorption of ions and molecules, restructuring of surfaces, thin film and nanocluster growth, and electrochemical reactions on the micrometer scale are addressed. The overview includes a wide range of experimental techniques and examples of solid-liquid interfaces and aims at stimulating an expansion of this important type of interface science.
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Instrumentation, Measurement And Analysis

Author: B. C. Nakra,K. K. Chaudhry

Publisher: Tata McGraw-Hill Education

ISBN: 9780070482968

Category: Electronic instruments

Page: 632

View: 540

Posted in Electronic instruments

Quantum Control of Molecular Processes

Author: Moshe Shapiro,Paul Brumer

Publisher: John Wiley & Sons

ISBN: 3527639713

Category: Science

Page: 562

View: 7494

Written by two of the world's leading researchers in the field, this is a systematic introduction to the fundamental principles of coherent control, and to the underlying physics and chemistry. This fully updated second edition is enhanced by 80% and covers the latest techniques and applications, including nanostructures, attosecond processes, optical control of chirality, and weak and strong field quantum control. Developments and challenges in decoherence-sensitive condensed phase control as well as in bimolecular control are clearly described. Indispensable for atomic, molecular and chemical physicists, physical chemists, materials scientists and nanotechnologists.
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System Test and Diagnosis

Author: William R. Simpson,John W. Sheppard

Publisher: Springer Science & Business Media

ISBN: 9780792394754

Category: Technology & Engineering

Page: 382

View: 9437

System Test and Diagnosis is the first book on test and diagnosis at the system level, defined as any aggregation of related elements that together form an entity of sufficient complexity for which it is impractical to treat all of the elements at the lowest level of detail. The ideas presented emphasize that it is possible to diagnose complex systems efficiently. Since the notion of system is hierarchical, these ideas are applicable to all levels. The philosophy is presented in the context of a model-based approach, using the information flow model, that focuses on the information provided by the tests rather than the functions embedded in the system. Detailed algorithms are offered for evaluating system testability, performing efficient diagnosis, verifying and validating the models, and constructing an architecture for system maintenance. Several advanced algorithms, not commonly available in existing diagnosis tools, are discussed, including reasoning with inexact or uncertain test data, breaking large problems into manageable smaller problems, diagnosing systems with time sensitive information and time dependent tests and learning from experience. The book is divided into three parts. The first part provides motivation for careful development of the subject and the second part provides the tools necessary for analyzing system testability and computing diagnostic strategies. The third part presents advanced topics in diagnosis. Several case studies are provided, including a single detailed case study. Smaller case studies describe experiences from actual applications of the methods discussed. The detailed case study walks the reader through a complete analysis of a system to illustrate the concepts and describe the analyses that are possible. All case studies are based upon real systems that have been modeled for the purposes of diagnosis. System Test and Diagnosis is the culmination of nearly twelve years of research into diagnosis modeling and its applications. It is designed as a primary reference for engineers and practitioners interested in system test and diagnosis.
Posted in Technology & Engineering

Meteorological Measurements and Instrumentation

Author: Giles Harrison

Publisher: John Wiley & Sons

ISBN: 1118745752

Category: Science

Page: 288

View: 4491

This book describes the fundamental scientific principlesunderlying high quality instrumentation used for environmentalmeasurements. It discusses a wide range of in situ sensors employedin practical environmental monitoring and, in particular, thoseused in surface based measurement systems. It also considers theuse of weather balloons to provide a wealth of upper atmospheredata. To illustrate the technologies in use it includes manyexamples of real atmospheric measurements in typical and unusualcircumstances, with a discussion of the electronic signalconditioning, data acquisition considerations and dataprocessing principles necessary for reliable measurements. Thisalso allows the long history of atmospheric measurements to beplaced in the context of the requirements of modern climatescience, by building the physical science appreciation of theinstrumental record and looking forward to new and emerging sensorand recording technologies.
Posted in Science