Abstract
Finite element analysis is used to investigate the actuator and sensor function of flextensional transducers, otherwise also called 'moony' transducers, which consist of a thin piezoceramic disk surrounded by a thin metal casing that encloses a crescent-shaped cavity on either side of the ceramic disk. This transducer is an effective actuator for large-displacement, high-sensitivity hydrophones and low-frequency underwater acoustic transmitters. A modal analysis of such a transducer is performed, and the admittance spectrum and the voltage sensitivity under hydrostatic pressure are studied as a function of frequency and cavity shape. The efficiency of such transducers for use as large displacement actuators is analyzed by plotting the surface displacement as a driving voltage is applied. The simulation is of use in the optimal design of flextensional transducers. >
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
