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Acoustic impedance

Definition of the noun acoustic impedance

What does acoustic impedance mean as a name of something?

noun

  1. opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component

Explanation

Acoustic impedance is the measure of the opposition that a system presents to an acoustic flow when an acoustic pressure is applied to it.

  • also known as 聲波阻抗

Printed dictionaries and other books with definitions for Acoustic impedance

Click on a title to look inside that book (if available):

Google previewMosby's Dictionary of Medicine, Nursing and Health Professions - Australian & New Zealand Edition (2014)

by Peter Harris, Sue Nagy, Nicholas Vardaxis

acoustic impedance acquired immunodeficiency syndrome (AIDS) acoustic impedance, interference with the passage of sound waves by objects in the path of those waves. The tympanic membrane and middle ear structures offer impedance, ...

Google previewEncyclopedia of Marine Mammals (2009)

by William F. Perrin, Bernd Würsig, J.G.M. Thewissen

Impedance The characteristic acoustic impedance of a medium is Z p/v, where p is the sound pressure, v is the particle velocity. A given sound pressure gives air molecules a larger particle velocity than water molecules, leading to lower ...

Google previewMosby's Pocket Dictionary of Medicine, Nursing & Health Professions - E-Book (2013)

by Mosby

acoustic impedance, interference with the passage of sound waves by objects in the path of those waves. It equals the velocity of sound in a medium multiplied by the density of the ...

Google previewMarine Geology and Geophysics, A derivative of the Encyclopedia of Ocean Sciences (2016)

Earth sciences, Geophysics by CTI Reviews

It primarily results from the change in polarity of the seismic response whena shale (withalower acoustic impedance) overlies a brinesaturated zone (with a high acoustic impedance),that becomes invaded with an oil/gas sand(withthe lowest ...

Google previewA Dictionary of Phonetics and Phonology (2004)

by R.L. Trask

acoustic impedance /ım'piːdəns/ n. A measure of the total tendency of a medium to oppose the passage of sound waves through it. If one tries to pass a sound wave from one medium to another of very different impedance, most of the sound ...

Google previewEncyclopedic Dictionary of Condensed Matter Physics (2004)

by Charles P. Poole, Jr.

ACOUSTIC IMPEDANCE A complex-valued quantity Za characterizing the resistance of a medium to the excitation or propagation of acoustic waves. Acoustic impedance is equal to the ratio of the complex amplitudes of sound pressure and ...

Google previewDictionary of Physics (2016)

by Palgrave Macmillan Ltd

Media with low acoustic impedance are correspondingly known as acoustically soft materials. acoustic holography, Boultrasonic holography. acoustic illusion, an illusion of the sense of hearing and apparent perception on the basis of the ...

Google previewA Dictionary for the Modern Flutist (2009)

by Susan J. Maclagan

See also ACOUSTIC IMPEDANCE SPECTRUM. ACOUSTIC IMPEDANCE SPECTRUM. If oscil— lating flow having ...

Google previewDictionary of Hearing (2013)

by Maryanne Maltby

acoustic impedance np A measureof the opposition tothe free flowof soundwaves through a medium oracoustic system (the reciprocal ...

Google previewA Dictionary for the Modern Clarinetist (2014)

by Jane Ellsworth

acoustic impedance. The resistance of an acoustic medium to any force applied to it ...

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Quotes about Acoustic impedance

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