Underwater characterizations of monolithic piezoceramic and 1–3 composite using a self-designed transducer

Author： Mirza Muhammad Saleem   Yasin Tariq   Ikram Masroor   Altaf Muhammad   Mushtaq Zahir   Khan Muhammad Nasir  

Publisher： Edp Sciences

E-ISSN： 1286-0050|73|3|30101-30101

ISSN： 1286-0042

Source： EPJ Applied Physics (The), Vol.73, Iss.3, 2016-03, pp. : 30101-30101

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Underwater characterizations of (Pb0.94Sr0.04)(Zr0.52Ti0.48)O3 (PZT) and PZT/araldite-F 1–3 composite were carried out through a self-designed transducer. Disc-shaped samples of bulk PZT and PZT/araldite-F composite were first characterized in air and then were assembled in the transducer individually. The transducer’s underwater voltage receiving sensitivity (Sh) and transmitting voltage response (Sv) were investigated in the frequency range of 10–200 kHz (well below thickness mode resonance) using a calibrated projector and receiver method with pulse technique. Results revealed that the transducer made with composite sample exhibited better (Sh) values (−214 dB ref 1 V/µPa) due to ~295% higher piezoelectric voltage coefficient gh (30 × 10−3 Vm/N) of the composite compared to PZT. In addition, the transducer with the PZT sample showed better Sv values (80 dB ref 1 µPa/1 V at 1 m) due to the presence of planar mode peaks in the frequency range of 10–200 kHz. These results indicate that the monolithic piezoceramic can exhibit underwater Sv response in both planar and thickness resonance modes owing to the admittance peaks in these frequency regions.

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