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Author: Masahiko Hirao Publisher: Springer Science & Business Media ISBN: 1475737432 Category : Science Languages : en Pages : 372
Book Description
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.
Author: Masahiko Hirao Publisher: Springer Science & Business Media ISBN: 1475737432 Category : Science Languages : en Pages : 372
Book Description
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.
Author: Chunguang Xu Publisher: CRC Press ISBN: 1040051804 Category : Technology & Engineering Languages : en Pages : 476
Book Description
Focusing on the theory and state-of-the-art technologies of ultrasonic testing (UT), this book examines ultrasonic propagation in solids and its detection applications, and explores the intersection of UT technology with various fields of electromagnetics, optics and physics. UT is one of the most widely used nondestructive testing techniques due to its high performance in terms of detection efficiency and safety. The rapid development of modern industrial products and technologies has created a new challenge and demand for ultrasonic nondestructive testing technology. This book introduces the fundamentals of UT, including sound wave and sound field, interface wave theory and liquid-solid coupled sound field. It then discusses various types of UT methods, ranging from the critically refracted longitudinal wave method to ultrasonic surface wave and ultrasonic guided wave detection methods. Some newly developed UT techniques are also discussed, including phased-array UT, high-frequency UT and non-contact UT. This title will appeal to engineering students and technicians in the field of ultrasonic nondestructive testing.
Author: Anthony N Sinclair Publisher: MDPI ISBN: 3039284223 Category : Technology & Engineering Languages : en Pages : 120
Book Description
In this Special Issue of Sensors, seven peer-reviewed manuscripts appear on the topic of ultrasonic transducer design and operation in harsh environments: elevated temperature, high gamma and neutron radiation fields, or the presence of aggressive chemicals. Motivations for these research and development projects are strongly focused on nuclear power plant inspections (particularly liquid-sodium cooled reactors), and nondestructive testing of high-temperature piping installations. It is anticipated that extensive use of permanently mounted robust transducers for in-service monitoring of petrochemical plants and power generations stations; quality control in manufacturing plants; and primary and secondary process monitoring in the fabrication of engineering materials will soon be made.
Author: Lester W. Schmerr Publisher: Springer ISBN: 9783319072739 Category : Technology & Engineering Languages : en Pages : 377
Book Description
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® functions and scripts, allowing the reader to conduct simulations of ultrasonic phased array transducers and phased array systems with the latest modeling technology.
Author: Gyoujin Cho Publisher: Woodhead Publishing ISBN: 9781855734302 Category : Technology & Engineering Languages : en Pages : 534
Book Description
The proceedings of a conference organized by the European Commission Joint Research Centre Institute of Advanced Materials. The conference was held in Amsterdam, the Netherlands in October 1998 and covered all aspects of this highly important subject including links between structural integrity requirements and NDE performance. The development of performance demonstration / qualification for NDE systems and experiance of their application in practice feature prominently. Development of improved NDE systems, new methods of NDE and methods for assessing NDE performance such as modeling are also included.
Author: J. M. Farley Publisher: Elsevier ISBN: 1483146723 Category : Technology & Engineering Languages : en Pages : 932
Book Description
Non-Destructive Testing, Volume 4 contains the proceedings of the Fourth European Conference held in London on September 13-17, 1987. Contributors explore a variety of topics related to non-destructive testing (NDT), including ultrasonic techniques, ultrasonic systems, electromagnetic techniques, condition monitoring of plant and structures, and magnetic particle and penetrant techniques. This text is comprised of 98 chapters; the first of which describes an ultrasonic technique for the assessment of the fat content of live beef animals for breeding purposes. Attention then turns to measurements of the longitudinal ultrasonic wave attenuation in spheroidal graphite iron test pieces subjected to fatigue loads. The chapters that follow focus on ultrasonic imaging; dry coupling probes; an expert system for ultrasonic examination of fuel rods; engineering and medical applications of diagnostic ultrasound; and signal processing of 3D maps of eddy currents. The reader is also methodically introduced to automation of eddy current testing; the use of artificial intelligence in vibration-based health monitoring; automated inspection of magnetic particles; and the theory and practice of acoustic emission. This text concludes with a chapter that reviews the NDT research program of the National NDT Center of Harwell Laboratory in the UK. This book will be of interest to materials scientists, materials engineers, and metallurgists.
Author: Donald O. Thompson Publisher: Springer Science & Business Media ISBN: 1461547911 Category : Science Languages : en Pages : 2362
Book Description
This authoritative and up-to-date series provides a comprehensive review of the latest research results in quantitative nondestructive evaluation (NDE). Leading investigators working in government agencies, major industries, and universities present a broad spectrum of work extending from basic research to early engineering applications.
Author: Masahiko Hirao Publisher: Springer Science & Business Media ISBN: 9781402074943 Category : Science Languages : en Pages : 388
Book Description
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.
Author: G.Y. Tian Publisher: IOS Press ISBN: 1643681192 Category : Technology & Engineering Languages : en Pages : 314
Book Description
Electromagnetic Non-destructive Evaluation (ENDE) is an invaluable, non-invasive diagnostic tool for the inspection, testing, evaluation and characterization of materials and structures. It has now become indispensible in a number of diverse fields ranging from biomedics to many branches of industry and engineering. This book presents the proceedings of the 24th International Workshop on Electromagnetic Nondestructive Evaluation, held in Chengdu, China from 11 - 14 September 2019. The 38 peer-reviewed and extended contributions included here were selected from 45 original submissions, and are divided into 7 sections: eddy current testing and evaluation; advanced sensors; analytical and numerical modeling; material characterization; inverse problem and signal processing; artificial intelligence in ENDE; and industrial applications of ENDE. The papers cover recent studies concerning the progress and application of electromagnetic (EM) fields in the non-destructive examination of materials and structures, and topics covered include evaluations at a micro-structural level, such as correlating the magnetic properties of a material with its grain structure, and a macroscopic level, such as techniques and applications for EM NDT&E. Recent developments and emerging materials such as advanced EM sensors, multi-physics NDT&E, intelligent data management and maintaining the integrity of structures are also explored. The book provides a current overview of developments in ENDE, and will be of interest to all those working in the field.
Author: Masahiko Hirao
Author: Masahiko Hirao
Author: Chunguang Xu
Author: Anthony N Sinclair
Author: Lester W. Schmerr
Author: Gyoujin Cho
Author: J. M. Farley
Author: 
Author: Donald O. Thompson
Author: Masahiko Hirao
Author: G.Y. Tian