Описание: EMATs for Science and Industry comprises the physical principles of electromagnetic acoustic transducers (EMATs) and the applications to scientific and industrial ultrasonic measurements on materials. The text is arranged in four parts: -PART I is intended to be a self-contained description of the basic elements of coupling mechanism along with practical designing of EMATs for various purposes. There are several implementations to compensate for the low transfer efficiency of the EMATs. Useful tips to make an EMAT are also presented. -PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of contactless nature of EMATs and is the most successful amplification mechanism for precise velocity and attenuation measurements. -PART III applies EMAR to studying the physical acoustics. New measurements emerged on three major subjects; in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. -PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.The authors' work in this area has shown Electromagnetic acoustic resonance (EMAR) to be applicable not only to the acoustoelastic stress measurements, but also to many other nondestructive evaluation issues, including the determination of attenuation in solids. Noncontact measurement with high enough signal intensity was striking. Basic preconditions of theoretical approaches were realized by eliminating artifacts caused by the contact transducers. EMAR thus illuminated antiquated theories, which were accepted to be of little use or limited to qualitative interpretation of observations. It also uncovered interesting phenomena. Continuous monitoring of attenuation and acoustic nonlinearity resulted in the detection of ongoing microstructure evolutions in deforming or fatiguing metals.The aim of this book is to provide practical answers to the needs of ultrasonic measurements as well as an understanding of a novel methodology.
Описание: Ultrasonic methods have been very popular in nondestructive testing and characterization of materials. This book deals with both industrial ultrasound and medical ultrasound. It presents topics like structural health monitoring, Terahertz methods, X-ray and thermography methods.
Описание: Covers the basic principles and practices of ultrasonic testing, including the basic theory of vibration and propagation, design and properties and probes, as well as the principles and practice of the various ultrasonic techniques for different types of components and structures, both metallic and non-metallic.
Автор: Hu Junhui Название: Ultrasonic Micro/Nano Manipulations ISBN: 9814525316 ISBN-13(EAN): 9789814525312 Издательство: World Scientific Publishing Рейтинг: Цена: 12830 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Demands for high-performance micro/nano manipulations, from the manufacture of microelectronic and photonic devices, biomedical apparatus, nanoscience and nanotechnology, renewable energy, environment protection, and high-end appliances, have been rapidly increasing in recent years. However, there are very few books on ultrasonic manipulation technology, which is one of the important means in micro/nano manipulations.This unique title gives the basic physical principles of ultrasonic micro/nano manipulations, and highlights methods of implementing these principles. The nonlinear effects of ultrasound are described in details after piezoelectric transduction and acoustic field are introduced and discussed. Numerous important examples are given in this book, to help readers better understand the applications of these principles and characteristics of ultrasonic manipulators utilizing these principles. The examples cover the manipulations of micro solids, nanoscale entities, droplets and microfluid.This indispensable book will contribute positively to the development and application of micro/nano manipulation technology.
Автор: Schmerr, Lester W. Song, Jung-sin Название: Ultrasonic nondestructive evaluation systems ISBN: 1441943153 ISBN-13(EAN): 9781441943156 Издательство: Springer Рейтинг: Цена: 23508 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Using a systems level approach, this book employs aspects of linear systems theory and wave propagation and scattering theory to develop a comprehensive model of an entire ultrasonic measurement system.
Автор: Ashokkumar Название: Handbook of Ultrasonics and Sonochemistry ISBN: 9812872779 ISBN-13(EAN): 9789812872777 Издательство: Springer Рейтинг: Цена: 97958 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The aim of this handbook is to summarize the recent development in the topic of ultrasonics and sonochemistry, especially in the areas of functional materials and processing applications. This handbook will benefit the readers as a full and quick technical reference with a high-level historic review of technology, detailed technical descriptions and the latest practical applications. This handbook is divided into five main sections: fundamentals of ultrasonics and sonochemistry, biomaterials, food processing, catalysts, wastewater remediation. Each section and chapter is written by reputable international scholars and industrial experts. The handbook comprehensively covers the fundamentals of sonochemistry along with key applications. The handbook strives to be a self-contained, easily-understandable reference that will also include up to date knowledge based on research articles. This handbook serves to provide a quick and reliable knowledge for new comers from chemistry, bioengineering, food processing, environmental engineering, in both academia and in industrial fields.
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