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Acoustic impedance

Acoustic impedance

The resistance that a material offers to the passage of a sound wave (colloquial); a property of a medium computed as the product of density and sound propagation speed (characteristic acoustic impedance). Discontinuities in acoustic impedance are responsible for the echoes on which ultrasound imaging is based. Unit: the rayl.


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The Fiber Disease

... (PCR), magnetic field sensors, test strips, flow cytometry, electrical impedance, fluorescence and mass spectrometry. Each class presents significant ... techniques used for the development of biosensors include Surface Acoustic Wave (SAW) [1] and Surface Plasmon Resonance (SPR) [2] based sensors. ...

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by Nadas Moksha
Tue Nov 28, 2006 11:08 am
 
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