Overview
- Describes the physical principle of EMATs stemming from electromagnetics and elasticity mechanics, providing useful clues about the application of EMATs for individual purposes
- Provides many new studies of physical acoustic measurements that only EMATs can realize, including electromagnetic acoustic resonance and resonance ultrasound microscopy
- Summarizes successful industrial applications of EMATs for materials characterization and nondestructive inspection
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Series in Measurement Science and Technology (SSMST)
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Table of contents (18 chapters)
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Front Matter
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Development of EMAT Techniques
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Front Matter
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Resonance Spectroscopy with EMATS-EMAR
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Front Matter
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Keywords
- Elastic Constants
- Elastic Wave Propagation
- Electromagnetic Acoustic Transducer (EMAT)
- Fundamental Physics of Wave-matter Interactions
- Internal Friction
- Materials characterization
- Noncontact Ultrasonic Measurements
- Physical Acoustics
- Resonance Spectroscopy
- Ultrasonic Microscopy
- Ultrasonic Nondestructive Inspection/evaluation
About this book
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.
Authors and Affiliations
Bibliographic Information
Book Title: Electromagnetic Acoustic Transducers
Book Subtitle: Noncontacting Ultrasonic Measurements using EMATs
Authors: Masahiko Hirao, Hirotsugu Ogi
Series Title: Springer Series in Measurement Science and Technology
DOI: https://doi.org/10.1007/978-4-431-56036-4
Publisher: Springer Tokyo
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Japan KK 2017
Hardcover ISBN: 978-4-431-56034-0Published: 01 November 2016
Softcover ISBN: 978-4-431-56760-8Published: 29 June 2018
eBook ISBN: 978-4-431-56036-4Published: 25 October 2016
Series ISSN: 2198-7807
Series E-ISSN: 2198-7815
Edition Number: 2
Number of Pages: XVI, 380
Number of Illustrations: 243 b/w illustrations, 44 illustrations in colour
Topics: Electronic Circuits and Devices, Characterization and Evaluation of Materials, Acoustics, Engineering Acoustics