Physical and Applied Acoustics

An Introduction

1st Edition - August 28, 1972
Editor: Erwin Meyer
Language: English
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 1 5 0 6 8 - 2

Physical and Applied Acoustics: An Introduction explores the mechanical-acoustical or acoustical-electrical analogies that are based on common theoretical relationships. This book… Read more

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Physical and Applied Acoustics: An Introduction explores the mechanical-acoustical or acoustical-electrical analogies that are based on common theoretical relationships. This book is composed of 11 chapters that discuss the theory, experiment, and technological applications of physical and applied acoustics. The introductory chapters deal with the sound wave propagation in liquids and gases, as well as the statistical theory of room acoustics. These topics are followed by discussions on sound absorption in different medium; the concept of sound radiation pressure; directional characteristics of sound sources; measurement and calibration of acoustics; and the fundamental physical and psychological facts of acoustics. The subsequent chapters cover the use of electroacoustics for the transmission of speech and music. A chapter examines the production and detection of extremely high-frequency sound, called quantum acoustics. The concluding chapter highlights the interaction phenomena between sound and flow in a medium.

Preface to the English Edition

Translator's Preface

Figure Credits

1. Theory of Sound Fields

1.1. Sound in Liquids and Gases

1.2. Sound in Porous Materials

1.3. Sound in Solids

1.4. Transmission Line Theory

1.5. Sound Transmission through Walls

1.6. Sound Diffraction and Scattering

1.7. Reflection and Refraction of Sound Incident at an Oblique Angle

2. Room Acoustics

2.1. Wave Theory of Room Acoustics

2.2. Statistical Room Acoustics

2.3. Geometrical Room Acoustics

3. Attenuation of Sound

3.1. Absorption in Gases

3.2. Sound Absorption in Liquids

3.3. Sound Absorption by Walls

4. Nonlinear Effects

4.1. The Rayleigh Sound Radiation Pressure

4.2. The Langevin Sound Radiation Pressure

4.3. The Sound Radiometer

4.4. The Ultrasonic Fountain

4.5. Radiation Force from Waves on Strings

4.6. Cavitation

4.7. The Quartz Wind

4.8. Shock Waves

5· Radiation and Reception of Sound

5.1. Piston Radiator in a Tube

5.2. Spherical Radiator

5.3. Piston Radiator in an Infinitely Large Baffle

5.4. Horn Radiator

5.5. Directional Characteristics of Elementary Sound Sources

5.6. Directionality of Arrays of Sources

5.7. The Sound Field of Circular Pistons

5.8. Comparison of the Beamwidths of Various Directional Sources

5.9. Sound Radiation from Flexural Waves on Plates

5.10. Directional Microphones

5.11. Diffraction of Sound (in Connection with Sound Radiation and Reception)

5.12. The Schottky Law of Low-Frequency Reception ("Tiefenempfangsgesetz")

5.13. The Absorbing Area of a Resonant Receiver

6. Acoustical Measurement Techniques

6.1. The Rayleigh Disk

6.2. The Wien Membrane Manometer

6.3. Two Simple Methods for Measuring Small Vibration Amplitudes

6.4. Calibration of a Condenser Microphone by Applying an Electrostatic Force

6.5. Calibration in a Pressure Chamber

6.6. Reciprocity Calibration

6.7. Pressure and Free-Field Calibration

6.8. Sound Field Analysis with Light

6.9. Acoustical Measurement Chambers

6.10. Measurement of Sound in Solids

7. Physiological and Psychological Acoustics

7.1. The Ear

7.2. Speech

8. Electroacoustic Transducers

8.1. Carbon Microphones

8.2. Electrostatic Transducers

8.3. Dynamic Transducers

8.4. Electromagnetic Transducer

8.5. Thermal Sound Sources and Receivers

8.6. Piezoelectric Transducers

8.7. Magnetostrictive Transducers

9. Sound Recording

9.1. Disk (Stylus) Recording

9.2. Sound Motion Pictures (Optical Recording)

9.3. Magnetic Recording

10. Quantum Acoustics, Production and Detection of Extremely High-Frequency Sound

10.1. Electroacoustic Transducers for Hypersound

10.2. Thermal Phonon Radiators and Detectors

10.3. Tunnel Contacts between Superconductors as Source and Detector for Phonons

11. Flow Acoustics

11.1. Generation of Sound by a Flow

11.2. Interaction of Flow and Sound

Contents

Index