Effects of surface impedance on current density in a piezoelectric resonator for impedance distribution sensing

Abstract We study the relationship between surface mechanical load represented by distributed acoustic impedance and current density distribution in a shear mode piezoelectric plate wave resonator. A theoretical analysis based on theory of piezoelectricity trigonometric series is performed. In specific basic case when due to local mass layer, numerical results show that concentrates under layer sensitive physical as well geometric parameters such its location size. This provides foundation for predicting pattern from distribution, which fundamental relevant sensors.