Structural design of an acoustic planar array transducer by using the equivalent circuit method.

Area of Science:

• Acoustics
• Array Signal Processing
• Transducer Design

Background:

• Underwater acoustic transducers are crucial for target detection and tracking using sound waves.
• Acoustic interaction (crosstalk) between channels in transducer arrays distorts their performance characteristics.
• The finite element method (FEM) is computationally intensive for analyzing large acoustic arrays.

Purpose of the Study:

• To analyze the transmitting voltage response (TVR) spectrum of planar array transducers considering channel crosstalk.
• To develop a computationally efficient method for analyzing underwater array transducers.
• To design an optimal planar array transducer structure with broad bandwidth.

Main Methods:

• Analysis of the transmitting voltage response (TVR) spectrum considering crosstalk.
• Development of a novel equivalent circuit method (ECM) for acoustic analysis.
• Validation of the ECM by comparing its results with the finite element method (FEM).

Main Results:

• The ECM accurately analyzes the TVR spectrum of planar array transducers.
• The ECM significantly reduces computational time, being approximately 1780 times faster than FEM.
• The ECM facilitated the design of an optimal planar array transducer with broad bandwidth.

Conclusions:

• The developed ECM provides a fast and efficient alternative to FEM for analyzing underwater acoustic array transducers.
• The ECM can accelerate the design process for underwater planar array transducers.
• This method enables the design of superior underwater acoustic systems with improved speed and efficiency.