Electromagnetic Acoustic Transducers
Noncontacting Ultrasonic Measurements using EMATs
Seiten
2016
|
2nd ed. 2017
Springer Verlag, Japan
978-4-431-56034-0 (ISBN)
Springer Verlag, Japan
978-4-431-56034-0 (ISBN)
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.
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.
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.
Introduction.- Coupling mechanism.- Available EMATS.- Brief instruction to build EMATS.- Principles of EMAR for spectral response.- Free-Decay measurement for attenuation and internal friction.- In-SITU monitoring of dislocation mobility.- Elastic constants and internal friction of advances materials.- Resonance Ultrasound microscopy.- Nonlinear acoustics for Microstractural evolution.- On-line texturer monitoring of steel sheets.- Acoustoelastic stress measurements.- Measurement of induction-hardening depth.- Detection of flaw and corrosion.- Average grain size of steel.- Remaining-life assessment of fatigued metals.- Creep damage detection.- Field applications of EMATS.
| Erscheinungsdatum | 27.06.2016 |
|---|---|
| Reihe/Serie | Springer Series in Measurement Science and Technology |
| Zusatzinfo | 44 Illustrations, color; 243 Illustrations, black and white; XVI, 380 p. 287 illus., 44 illus. in color. |
| Verlagsort | Tokyo |
| Sprache | englisch |
| Maße | 155 x 235 mm |
| Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Mechanik |
| Technik ► Elektrotechnik / Energietechnik | |
| Technik ► Maschinenbau | |
| Schlagworte | 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 |
| ISBN-10 | 4-431-56034-3 / 4431560343 |
| ISBN-13 | 978-4-431-56034-0 / 9784431560340 |
| Zustand | Neuware |
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