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Characterization of PMMA, Water and PS in terms of impedance to quantify the effect of the ultrasonic propagation in the sample.
| Material | (ρ) Density Kg/m3 | (c) Velocity (m/s) | (Z) Impedance (Pa.s/m) |
|---|---|---|---|
| PMMA | 1180 | 2765 | 3,263,183 |
| Water (27°) | 993 | 1525 | 1,515,584 |
| Polystyrene (PS) | 612 | 2340 | 1,432,080 |
