Physical Acoustics V13

Principles and Methods

1st Edition - November 28, 1977
Editor: Warren P. Mason
Language: English
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 1 5 7 1 8 - 6

Physical Acoustics: Principles and Methods, Volume XIII is a six-chapter text that covers a variety of topics in physical acoustics, including the principles of ultrasonic waves,… Read more

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Physical Acoustics: Principles and Methods, Volume XIII is a six-chapter text that covers a variety of topics in physical acoustics, including the principles of ultrasonic waves, plate modes, diffraction, mode vibrators, ray theory, and acoustic emission. Chapter 1 deals with the theory and application of anelasticity in studying various types of relaxations, such as point defect, grain-boundary, thermoelastic, phonon and electron relaxations, and magnetic relaxations. Chapter 2 presents the different methods used in studying the very important Type II superconductor materials. Chapter 3 surveys the plate modes in surface acoustic wave devices and the theory needed to understand plate modes in piezoelectric media, as well as to eliminate or reduce their effect on the response. Chapter 4 tackles the ways of predicting diffraction loss and phase distortion, and discusses the alleviation of diffraction effects by acoustic beam shaping, material selection and orientation, and alterations in the transducer structure. Chapter 5 examines plate vibrators whose thickness direction has an arbitrary crystallographic orientation and the tools for the analysis of the properties of doubly rotated cuts, with special emphasis on such cuts in quartz, berlinite, lithium tantalate, and lithium niobate. Chapter 6 discusses generalized ray theory and transient responses of layered elastic solids. This book will be of great value to researchers in the fields of electronics technology and applied and engineering mechanics.

ContributorsPreface1 Anelasticity: An Introduction I. Introduction II. Formal Theory of Anelasticity III. Internal Variables and the Thermodynamic Basis for Relaxation Spectra IV. Physical Origins of Anelasticity References2 Structural Instability of A-15 Superconductors I. Introduction II. Metallurgical and Chemical Studies III. Magnetic Susceptibility, NMR, and Electrical Resistivity IV. The Batterman-Barrett Transformation V. X-Ray Studies VI. Elastic Moduli VII. Stress Behavior VIII. Composition, Disorder, and Defects: Their Effects on Tc and Electrical Resistivity IX. High Frequency Phonon Behavior X. Theory References3 Plate Modes in Surface Acoustic Wave Devices I. Introduction II. Analysis of Plate Mode Propagation III. Excitation of Plate Modes in Piezoelectric Substrates References4 Anisotropic Surface Acoustic Wave Diffraction I. Introduction II. Theory III. Diffraction Loss and Phase Effects IV. Effect of Diffraction on Device Design V. Minimal Diffraction Cuts VI. Diffraction for Acoustic Analogues of Optical Components VII. Miscellaneous Effects VIII. Conclusion References5 Doubly Rotated Thickness Mode Plate Vibrators I. Introduction II. Waves and Vibrations in Piezoelectric Media III. Critical Plate Frequencies IV. Static Frequency-Temperature Behavior V. Properties of Doubly Rotated Cuts VI. Electrical Characteristics of Plate Vibrators VII. Analog Electric Network Models References6 The Generalized Ray Theory and Transient Responses of Layered Elastic Solids I. Introduction II. Equations of Elasticity and Solutions III. The Theory of Generalized Ray IV. The Cagniard Method and Transient Waves Due to a Line Load V. Axisymmetric Waves Due to a Point Load VI. General Solutions for a Point Source VII. Transient Responses and Numerical Examples ReferencesAuthor IndexSubject IndexContents of Previous Volumes