Electromagnetic Acoustic Transducers
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Electromagnetic Acoustic Transducers
Author | : Masahiko Hirao,Hirotsugu Ogi |
Publsiher | : Springer |
Total Pages | : 380 |
Release | : 2016-10-25 |
Genre | : Technology & Engineering |
ISBN | : 9784431560364 |
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This second edition provides comprehensive information on electromagnetic acoustic transducers (EMATs), from the theory and physical principles of EMATs to the construction of systems and their applications to scientific and industrial ultrasonic measurements on materials. The original version has been complemented with selected ideas on ultrasonic measurement that have emerged since the first edition was released. The book is divided into four parts: PART I offers a self-contained description of the basic elements of coupling mechanisms along with the practical designing of EMATs for various purposes. Several implementations to compensate for EMATs’ low transfer efficiency are provided, along with useful tips on how to make an EMAT. PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of EMATs’ contactless nature and is the most successful amplification mechanism for precise measurements of velocity and attenuation. PART III applies EMAR to studying physical acoustics. New measurements have emerged with regard to four major subjects: in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, pointwise elasticity mapping (RUM), and acoustic nonlinearity evolution. PART IV deals with a variety of individual issues encountered in industrial applications, for which the EMATs are believed to be the best solutions. This is proven by a number of field applications.
EMATs for Science and Industry
Author | : Masahiko Hirao,Hirotsugu Ogi |
Publsiher | : Springer Science & Business Media |
Total Pages | : 372 |
Release | : 2013-04-17 |
Genre | : Science |
ISBN | : 9781475737431 |
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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.
Empirical Modeling of Electromagnetic Acoustic Transducer Data
Author | : Kevin J. Coakley |
Publsiher | : Unknown |
Total Pages | : 16 |
Release | : 1999 |
Genre | : Electro-acoustics |
ISBN | : OCLC:1312500056 |
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Phased Electromagnetic Acoustic Transducer Arrays for Enhanced Ultrasonic Inspection
Author | : Lunci Xiang |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2021 |
Genre | : Electroacoustic transducers |
ISBN | : OCLC:1375086559 |
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Ultrasonic Transducers
Author | : K Nakamura |
Publsiher | : Elsevier |
Total Pages | : 722 |
Release | : 2012-08-23 |
Genre | : Technology & Engineering |
ISBN | : 9780857096302 |
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Ultrasonic transducers are key components in sensors for distance, flow and level measurement as well as in power, biomedical and other applications of ultrasound. Ultrasonic transducers reviews recent research in the design and application of this important technology. Part one provides an overview of materials and design of ultrasonic transducers. Piezoelectricity and basic configurations are explored in depth, along with electromagnetic acoustic transducers, and the use of ceramics, thin film and single crystals in ultrasonic transducers. Part two goes on to investigate modelling and characterisation, with performance modelling, electrical evaluation, laser Doppler vibrometry and optical visualisation all considered in detail. Applications of ultrasonic transducers are the focus of part three, beginning with a review of surface acoustic wave devices and air-borne ultrasound transducers, and going on to consider ultrasonic transducers for use at high temperature and in flaw detection systems, power, biomedical and micro-scale ultrasonics, therapeutic ultrasound devices, piezoelectric and fibre optic hydrophones, and ultrasonic motors are also described. With its distinguished editor and expert team of international contributors,Ultrasonic transducers is an authoritative review of key developments for engineers and materials scientists involved in this area of technology as well as in its applications in sectors as diverse as electronics, wireless communication and medical diagnostics. Reviews recent research in the design and application of ultrasonic transducers Provides an overview of the materials and design of ultrasonic transducers, with an in-depth exploration of piezoelectricity and basic configurations Investigates modelling and characterisation, applications of ultrasonic transducers, and ultrasonic transducers for use at high temperature and in flaw detection systems
Electromagnetic Acoustic Transducer
Author | : C. M. Fortunko |
Publsiher | : Forgotten Books |
Total Pages | : 140 |
Release | : 2017-10-28 |
Genre | : Technology & Engineering |
ISBN | : 1528322924 |
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Excerpt from Electromagnetic-Acoustic-Transducer: Synthetic-Aperture System for Thick-Weld Inspection Chapter 8 is a discussion of the experimental resuits from a laboratory version of the new sh-wave inspection system used on a calibration specimen containing weii characterized mode] flaws. Chapter 8 describes the calibration specimen and the experimentai procedures used to cotiect the uttrasonic data. Then fottows a discussion and analysis of the experimentai resutts summarized in terms of a ftaw Tength vs. Fiaw depth diagram that is compatibie with a fitness-for-purpose approach to weld quality validation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
ELECTROMAGNETIC ACOUSTIC TRANSDUCER
Author | : C. M. FORTUNKO |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2019 |
Genre | : Electronic Book |
ISBN | : 1033903353 |
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Electromagnetic Acoustic Transducers EMATs of Different Magnetic Strength
Author | : Nurul Fariha Ahmad |
Publsiher | : Unknown |
Total Pages | : 30 |
Release | : 2012 |
Genre | : Electronic Book |
ISBN | : OCLC:960244241 |
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