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Material properties of ceramic, kerf filler, lens, and 1-3 piezo-composite used for the double-focused transducer.
| Parameters | Ceramic (CTS3203HD) | Kerf Filler (Epo-tek301 + LP3) | Lens (Epo-tek301) | 1-3 Piezo-CompoSite |
|---|---|---|---|---|
| Ceramic Volume fraction (%) | 50 | |||
| Density (kg/m3) | 7820 | 1163 | 1150 | 4325 |
| Longitudinal velocity (m/s) | 4732 | 2635 | 2650 | 3835 |
| Acoustic Impedance (Mrayls) | 37.0 | 3.06 | 3.05 | 16.59 |
| Clamped dielectric constant | 1200 | 741.4 | ||
| Coupling coefficient | 0.53 | 0.69 |
