Research Information System
Proceedings of the 8th Conference and Exhibition of the European Ceramic Society, İstanbul, Turkey, 29 June - 03 July 2003, vol.264-268, pp.1305-1308
In general high Q is a desired property for transducer applications, which is the indication low loss. However for the underwater acoustic applications wide bandwidth is also a desired property. Therefore the Q values should be low to achieve wide bandwidth. Cymbal transducer has the highest figure of merit as a hydrophone and as well as huge potential for underwater projector applications. However Q of the standard cymbal transducer is higher than desired and it is a disadvantage of this transducer. In this investigation cavity beneath the endcaps of the cymbal transducer were partially filled with polymeric media to cause visco-elastic damping. All the experiments were performed with ANSYS FEM codes in air. Initial results showed that the Q of the cymbal transducer can be tuned to the desired value by filling the cavity with beneath the endcaps.