Study of 1-3-2 type piezoelectric composite transducer array

Area of Science:

• Acoustic Engineering
• Materials Science
• Piezoelectric Devices

Background:

• Underwater acoustic transducer arrays are crucial for various applications.
• Existing designs face challenges with environmental stability and performance.

Purpose of the Study:

• To investigate high-frequency underwater transducer arrays with improved performance.
• To evaluate the efficacy of a novel 1-3-2 type piezoelectric composite as the sensing material.

Main Methods:

• Design and fabrication of 4-element and 8-element serried uniform linear arrays.
• Utilizing a 1-3-2 type piezoelectric composite with ceramic framework supports.
• Experimental measurement of transducer and array performance characteristics.

Main Results:

• Achieved a resonant frequency of 150 kHz.
• Demonstrated a resonant transmission response exceeding 160 dB.
• Obtained a wide operational bandwidth from 140 kHz to 160 kHz.

Conclusions:

• The developed transducer arrays exhibit wide bandwidth and high sensitivity.
• The novel piezoelectric composite ensures stable performance, resilient to environmental changes.
• The arrays show good coherence, suitable for advanced underwater acoustic systems.