Design Parameters of a Miniaturized Piezoelectric Underwater Acoustic Transmitter

Sensors

Huidong Li²  Zhiqun Daniel Deng¹  Yong Yuan² 

[1] Energy and Environment Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA;

关键词: miniaturized transmitter;    underwater acoustic transmitter;    piezoelectric ceramic;    PZT;    piezoelectric transducer;    transducer power consumption;    fish tag;   

DOI  :  10.3390/s120709098

来源: mdpi

【 摘 要 】

PZT ceramics have been widely used in underwater acoustic transducers. However, literature available discussing the design parameters of a miniaturized PZT-based low-duty-cycle transmitter is very limited. This paper discusses some of the design parameters—the backing material, driving voltage, PZT material type, power consumption and the transducer length of a miniaturized acoustic fish tag using a PZT tube. Four different types of PZT were evaluated with respect to the source level, energy consumption and bandwidth of the transducer. The effect of the tube length on the source level is discussed. The results demonstrate that ultralow-density closed-cell foam is the best backing material for the PZT tube. The Navy Type VI PZTs provide the best source level with relatively low energy consumption and that a low transducer capacitance is preferred for high efficiency. A 35% reduction in the transducer length results in 2 dB decrease in source level.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.