acoustic impedance

(redirected from acoustic impedances)
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Related to acoustic impedances: Sound impedance
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  • noun

Synonyms for acoustic impedance

opposition to the flow of sound through a surface

References in periodicals archive ?
The acoustic impedance is determined by the density p and of the acoustic velocity v of the material (2):
The condition of the acoustic microscopic analysis is the difference between the acoustic impedance of the materials.
For example, at the boundary of two media with acoustic impedances [Z.
The amount of seismic energy transmitted and reflected depends on the acoustic impedance contrast between the two formation beds.
The calculated acoustic impedances of polymer melt and delay line as well as those of screw root and solid PVC are listed in Table 2 for further attenuation analysis.
The composite samples were suspended freely in air and their electrical impedances measured over the frequency range 300 kHz to 50 MHz where the total impedance at resonance is given by the sum of the electrical impedance and the acoustic impedances (14, 16-18).
In fact, the acoustic impedance upstream and downstream of the flame is used as an input in the feedback loop model developed by Baade (1978, 2004; Baade and Tomarchio, 2008).