Sound-Power Flow

A Practitioner's Handbook for Sound Intensity
Erscheinungsjahr 2017
ISBN: 978-1-68174-452-0
Verlag: IOP Concise Physics

Buch, Englisch, 134 Seiten, Paperback, Format (B × H): 178 mm x 254 mm, Gewicht: 268 g

Sound-Power Flow: A Practitioner's Handbook for Sound Intensity is a guide for practitioners and research scientists in different areas of acoustical science. There are three fundamental quantities in acoustics: sound pressure, sound particle velocity, and sound intensity. This book is about sound intensity and demonstrates the advantages and uses of acoustical sensing compared with other forms of sensing. It describes applications such as: measuring total sound power; directional hearing of humans and mammals; echolocation; measuring sound-power flow in ducts; and uses of non-contact, focused, high-frequency, pulse-echo ultrasonic probes.

This book presents computational approaches using standard mathematics, and relates these to the measurement of sound-power flow in air and water. It also uses linear units rather than logarithmic units – this making computation in acoustics simpler and more accessible to advanced mathematics and computing. The book is based on work by the author and his associates at General Motors, the University of Mississippi, and Sonometrics.

Autoren/Hrsg.

Hickling, Robert

Inhaltsverzeichnis

- Mathematics and measurement of sound-power flow in fluids
- Calibration and normalization of probes in air
- Mathematics of sound-power flow in solids
- Sound sources and methods of exciting sound
- Sound-power flow over the ground, and in the atmosphere and ocean
- Sound-power flow in the Earth's structure
- The sound power of a source measured on a hypothetical enclosing surface
- The sound power of a source measured at its surface
- Enhancement of sound power by sound from other correlated sources
- Transfer-function methods applied to incident and reflected components of sound-power flow in a duct
- Determining the direction of a sound source in fluids
- Computer-visualation of the free vibrations of metal spheres and shells
- Computer visualation of acoustic scattering and response of spheres in water
- Acoustic scattering and focusing by spheres in water
- Computed results compared with experimental data
- Mathematical model of head impact
- Sound-power flow during airbag deployment in a motor vehicle compartment
- Uses of high-frequency, focused, pulse-echo ultrasonic probes
- Detecting insect pests in agricultural commodities
- Holography of liquid droplets
- Wooden sounding boards
- Use of deturbulators to improve performance of wind farms
- Sound-power flow in medical ultrasonics
- Metamaterials
- Cosmic sound waves
- Back matter

Über Autor(innen)

Robert Hickling’s main area of research is engineering acoustics with particular focus on application of sound-intensity measurement, motor vehicle and environmental noise, and noise and overpressure due to airbags. Born in Bologna, Italy, he received an MA (Pure and Applied Mathematics) in 1954 from the University of St Andrews, Scotland, and a PhD in Engineering Science in 1963 from the California Institute of Technology. He has been an industry consultant for Delphi, Autoliv and Takata and is a fellow of the ASME and ASA. He was a Scientific Officer, for the Royal Naval Scientific Service, UK. He worked at the General Motors Research Laboratories, Michigan, USA. He held the post of Research Professor of Engineering Research at the University of Mississippi and is now a Professor Emeritus. He is the owner and president of Sonometrics Inc.