Eur. Phys. J. Appl. Phys.
Volume 73, Number 3, March 2016
|Number of page(s)||8|
|Section||Semiconductors and Devices|
|Published online||28 March 2016|
Underwater characterizations of monolithic piezoceramic and 1–3 composite using a self-designed transducer
Pakistan Institute of Engineering and Applied Sciences, 45650 Islamabad, Pakistan
2 Institute of Industrial Control Systems, P.O. Box 1398, Rawalpindi, Pakistan
3 Physics Division, PINSTECH, P.O. Nilore, 45600 Islamabad, Pakistan
a e-mail: firstname.lastname@example.org
Revised: 13 November 2015
Accepted: 17 February 2016
Published online: 28 March 2016
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.
© EDP Sciences, 2016
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