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Related Experiment Video

Updated: Aug 5, 2025

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
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High-Performance Broadband Bistatic Piezoelectric Composite Array for Application in Ship Wake Detection.

Fenghua Tian1, Wenqiang Tian1, Yiming Liu1

  • 1Xi'an Precision Machinery Research Institute, Xi'an 710077, China.

Materials (Basel, Switzerland)
|March 29, 2023
PubMed
Summary

This study introduces a broadband 1-3 composite transceiver sub-array designed to improve the detection of ship wakes. The new array offers enhanced acoustic performance for better long-distance wake identification.

Keywords:
1–3 composite arrayarray arrangement methodbistatic arraybroadbandship wake

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Area of Science:

  • Underwater acoustics
  • Marine engineering
  • Signal processing

Background:

  • Ship far-field wakes are challenging to detect due to weak bubble scattering and thin wake structures.
  • Existing detection methods struggle with long-distance identification of these wakes.

Purpose of the Study:

  • To develop and evaluate a broadband 1-3 high-performance composite transceiver sub-array for improved ship far-field wake detection.
  • To analyze the acoustic characteristics, including frequency, transmission, reception, and beam width, of the developed sub-array.

Main Methods:

  • Design and fabrication of a broadband 1-3 composite transceiver sub-array.
  • Characterization of the sub-array's frequency response, transmission performance (sound source level), and reception performance (sensitivity).
  • Development of a detection array configuration method considering carrier speed and wide-band detection for wake width and direction.

Main Results:

  • The developed transmission array achieves a frequency bandwidth of 180 kHz (center frequency 390 kHz) with a maximum sound source level of 228 dB.
  • The receiving array exhibits a sensitivity of 184 dB within the same frequency band, with less than 5 dB fluctuation.
  • The broadband sub-array demonstrates superior acoustic performance compared to narrowband arrays of similar size.

Conclusions:

  • The broadband 1-3 composite transceiver sub-array significantly enhances the detection capabilities for ship far-field wakes.
  • The proposed array configuration method aids in determining wake width and direction, offering valuable insights for future research and applications.