Abstract
This study is focused in the measurement and modeling for the dispersion relations of guided waves propagating in a piezoelectric solid and dielectric fluid bi-layer system. The theoretical model based on a recursive asymptotic stiffness matrix method (RASM) is used to provide numerical calculations. A laser ultrasound technique is used to measure the dispersion relations. For all the studied cases, the measured dispersion curves agree with the theoretical calculations. Also the effects of fluid loading, including density, thickness, dielectric permittivity constants and conductivity are investigated in a quatitative way.
