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Título

Macrosonics: Phenomena, transducers and applications

Autor Gallego Juárez, Juan Antonio
Palabras clave High-power sonics
Ultrasonics
Macrosonic field
Transducers
Nonlinear phenomena
Fecha de publicación sep-2002
EditorSociedad Española de Acústica
Citación Forum Acusticum Sevilla 2002. Keynote Lectures ; KL-05
ResumenThe field of high-power sonics and ultrasonics is presently known as macrosonics. It comprises a great variety of applications which are generally related with the exploitation of nonlinear phenomena associated to the high amplitudes.
Advances in macrosonic applications are very much dependent on the development of suitable transducers and systems for the efficient generation of the effects to be exploited. Thus, applications in solids generally require high stresses to produce friction, heat and other secondary effects. Applications in liquids are generally based on cavitation and require transducers able to reach a certain sound pressure level (cavitation threshold) through a liquid volume. Applications in gases, which are generally based on particle velocity and radiation pressure, require high vibration amplitudes and good impedance matching.
This paper deals with some basic aspects of the macrosonic field and makes special emphasis on the transducers used and phenomena exploited for the development of new applications.
Descripción 15 pages, 17 figures.-- PACS nrs.: 43.35; 43.25.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Also published in the special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002: http://digital.csic.es/handle/10261/4862.
URI http://hdl.handle.net/10261/7977
ISBN 84-87985-07-6
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