Tailoring the Q of cymbal transducer
EURO CERAMICS VIII, PTS 1-3, cilt.264-268, ss.1305-1308, 2004 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 264-268
- Basım Tarihi: 2004
- Doi Numarası: 10.4028/www.scientific.net/kem.264-268.1305
- Dergi Adı: EURO CERAMICS VIII, PTS 1-3
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
- Sayfa Sayıları: ss.1305-1308
- Anahtar Kelimeler: flextensional transducer, Q, FEM
- Anadolu Üniversitesi Adresli: Hayır
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.