Автор: Lester W. Schmerr Jr. Название: Fundamentals of Ultrasonic Phased Arrays ISBN: 3319072714 ISBN-13(EAN): 9783319072715 Издательство: Springer Рейтинг: Цена: 20962.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Fundamentals of Ultrasonic Phased Arrays
Описание: Ultrasonic signals are increasingly being used for predicting material behavior, both in an engineering context (detecting anomalies in a variety of structures) and a biological context (examining human bones, body parts and unborn fetuses).
Автор: Chimenti, Dale; Rokhlin, Stanislav; Nagy, Peter Название: Physical Ultrasonics of Composites ISBN: 0195079604 ISBN-13(EAN): 9780195079609 Издательство: Oxford Academ Рейтинг: Цена: 17028.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Physical Ultrasonics of Composites is a rigorous introduction to the characterization of composite materials by means of ultrasonic waves. Composites are treated here not simply as uniform media, but as inhomogeneous layered anisotropic media with internal structure characteristic of composite laminates. The objective here is to concentrate on exposing the singular behavior of ultrasonic waves as they interact with layered, anisotropic materials, materials which incorporate those structural elements typical of composite laminates. This book provides a synergistic description of both modeling and experimental methods in addressing wave propagation phenomena and composite property measurements. After a brief review of basic composite mechanics, a thorough treatment of ultrasonics in anisotropic media is presented, along with composite characterization methods. The interaction of ultrasonic waves at interfaces of anisotropic materials is discussed, as are guided waves in composite plates and rods. Waves in layered media are developed from the standpoint of the Stiffness Matrix, a major advance over the conventional, potentially unstable Transfer Matrix approach. Laminated plates are treated both with the stiffness matrix and using Floquet analysis. The important influence on the received electronic signals in ultrasonic materials characterization from transducer geometry and placement are carefully exposed in a dedicated chapter. Ultrasonic wave interactions are especially susceptible to such influences because ultrasonic transducers are seldom more than a dozen or so wavelengths in diameter. The book ends with a chapter devoted to the emerging field of air-coupled ultrasonics. This new technology has come of age with the development of purpose-built transducers and electronics and is finding ever wider applications, particularly in the characterization of composite laminates.
Автор: J.M. Thijssen; D. Nicholas Название: Ultrasonic Tissue Characterization ISBN: 9400976682 ISBN-13(EAN): 9789400976689 Издательство: Springer Рейтинг: Цена: 18866.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The Steering Group invited a 1 imited group of Institutes to send its group leader and a research fel low in the entitled field, who should expose the overall research program, as wei 1 as the more specific work on tissue characterization by RF signal analysis and spectroscopy.
Ultrasonic Nondestructive Testing of Materials: Theoretical Foundations explores the mathematical foundations and emerging applications of this testing process, which is based on elastic wave propagation in isotropic and anisotropic solids. In covering ultrasonic nondestructive testing methods, the book emphasizes the engineering point of view, yet it relies on the physics and mathematics aspects involved in elastic wave propagation theory.
As a result, this resource becomes a missing link in the literature by combining coverage of the theoretical aspects of testing and providing intuitive assessments of numerous standard problems to illustrate fundamental assertions. Content includes a brief description of the theory of acoustic and electromagnetic fields to underline the similarities and differences as compared to elastodynamics. It also covers vector algebra and analysis, elastic plane and Rayleigh surface waves, and ultrasonic beams, as well as transducer radiation, inverse scattering, and ultrasonic nondestructive imaging.
Includes numerical computations to explain wave propagation phenomena and compare results of analytical formulations
Although ultrasonic nondestructive testing can often be roughly understood in terms of plane waves and beams, this book addresses the key issues of transducer radiation and defect scattering and imaging, respectively. The authors physically formulate point source synthesis, and, in mathematical terms, they use representation integrals with Green functions, always including intuitive interpretations with mathematical evaluations.
Replacing cumbersome index notation with a coordinate-free version, this reference offers step-by-step documentation of relevant tensorial elastodynamic cases involving isotropic and anisotropic materials. It provides all necessary mathematical tools readers require to understand the mathematical and physical basis for ultrasonic nondestructive testing.
Автор: Bernard Hamonic; Jean N. Decarpigny Название: Power Sonic and Ultrasonic Transducers Design ISBN: 3642732658 ISBN-13(EAN): 9783642732652 Издательство: Springer Рейтинг: Цена: 16979.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This volume contains the Proceedings of the International Workshop on the Design of Power Sonic and Ultrasonic Transducers, which was held in the Maison de l`Entreprise et des Technologies Nouvelles, Marcq en Baroeul, near Lille, France, on May 26 and 27, 1987.
Автор: Lester W. Schmerr Jr. Название: Fundamentals of Ultrasonic Phased Arrays ISBN: 331934465X ISBN-13(EAN): 9783319344652 Издательство: Springer Рейтинг: Цена: 14365.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
This book describes in detail the physical and mathematical foundations of ultrasonic phased array measurements. The book uses linear systems theory to develop a comprehensive model of the signals and images that can be formed with phased arrays. Engineers working in the field of ultrasonic nondestructive evaluation (NDE) will find in this approach a wealth of information on how to design, optimize and interpret ultrasonic inspections with phased arrays. The fundamentals and models described in the book will also be of significant interest to other fields, including the medical ultrasound and seismology communities. A unique feature of this book is that it presents a unified theory of imaging with phased arrays that shows how common imaging methods such as the synthetic aperture focusing technique (SAFT), the total focusing method (TFM), and the physical optics far field inverse scattering (POFFIS) imaging method are all simplified versions of more fundamental and quantitative imaging approaches, called imaging measurement models.
To enhance learning, this book first describes the fundamentals of phased array systems using 2-D models, so that the complex 3-D cases normally found in practice can be more easily understood. In addition to giving a detailed discussion of phased array systems, Fundamentals of Ultrasonic Phased Arrays also provides MATLAB(R) functions and scripts, allowing the reader to conduct simulations of ultrasonic phased array transducers and phased array systems with the latest modeling technology.
Автор: Lester W. Schmerr Jr. Название: Fundamentals of Ultrasonic Nondestructive Evaluation ISBN: 3319304615 ISBN-13(EAN): 9783319304618 Издательство: Springer Рейтинг: Цена: 32142.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: An Ultrasonic System.- Linear Systems and the Fourier Transform.- Fundamentals.- Propagation of Bulk Waves.- The Reciprocal Theorem and Other Integral Relations.- Reflection and Refraction of Bulk Waves.- Propagation of Surface Waves and Plate Waves.- Ultrasonic Transducer Radiation.- Material Attenuation and System Functions.- Flaw Scattering.- The Transducer Reception Process.- Ultrasonic Measurement Models.- Near Field Measurement Models.- Quantitative Ultrasonic NDE with Models.- Model-based Flaw Sizing.- Appendix A. The Fourier Transform.- Appendix B. The Dirac Delta Function.- Appendix C. Basic Notations and Concepts.- Appendix D. The Hilbert Transform.- Appendix E. The Method of Stationary Phase.- Appendix F. Properties of Ellipsoids.
Автор: H. Peter Higer; Gernot Bielke Название: Tissue Characterization in MR Imaging ISBN: 364274995X ISBN-13(EAN): 9783642749957 Издательство: Springer Рейтинг: Цена: 15372.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The workshop was carried out within the framework of the EC Medical and Health Research Programme (Commission of the European Communities)
Автор: Norbert G. H. Meyendorf; Peter B. Nagy; Stanislav Название: Nondestructive Materials Characterization ISBN: 3642073506 ISBN-13(EAN): 9783642073502 Издательство: Springer Рейтинг: Цена: 26120.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: With an emphasis on aircraft materials, this book describes techniques for the material characterization to detect and quantify degradation processes such as corrosion and fatigue.
