Tailoring the Q of cymbal transducer


DOĞAN A. A., Yazici Z., Uzgur E.

Proceedings of the 8th Conference and Exhibition of the European Ceramic Society, İstanbul, Türkiye, 29 Haziran - 03 Temmuz 2003, cilt.264-268, ss.1305-1308 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 264-268
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1305-1308
  • Anahtar Kelimeler: FEM, Flextensional Transducer, Q
  • Anadolu Üniversitesi Adresli: Evet

Özet

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.