Resonant frequency response of cymbal transducer

Piezoelectric and electroestrictive ceramics have been used in many actuator applications as displacement transducers, pressure sensor, shape controllers and precision micropositioners. To meet these needs a composite actuator, called "Cymbal", based on a flextensional transducer was developed. The device is composed by a PZT ceramic disc sandwiched between two truncated conical metal endcaps, having a shallow cavity between the metal and the ceramic. In this work the cymbal's mechanical vibration response as a function of the driving frequency is studied. The main vibration modes are identified.