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单词 acoustic impedance
释义

acoustic impedance

noun Physics
The ratio of the pressure over an imaginary surface in a sound wave to the rate of particle flow across the surface.The harmless waves are aimed at the part to be examined, and reflections are detected from tissue components in proportion to their acoustic impedance....
  • Signal processing procedures have been developed that estimate acoustic impedance and compressional wave attenuation with depth beneath the sea floor.
  • These invariably cause seismic waveform scattering and degeneration as a result of factors such as surface geometry and acoustic impedance contrasts through the lavas.
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更新时间:2025/1/11 12:10:54