Research on Array Structures of Acoustic Directional Transducer

This paper focuses on the directivity design of array structures of acoustic directional transducers. Based on Huygens principles, the directivity formula of transducer arrays under random distribution in xyz space is derived when the circular piston transducers are used as the array element, which...

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Bibliographic Details
Published in:Mathematical problems in engineering 2021, Vol.2021, p.1-5
Main Authors: Zhao, Guozhu, Shi, Kaibo, Zhong, Shouming
Format: Article
Language:English
Subjects:
Acoustics
Arrays
Directivity
Engineering
Research methodology
Sidelobes
Sound waves
Transducers
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Summary:This paper focuses on the directivity design of array structures of acoustic directional transducers. Based on Huygens principles, the directivity formula of transducer arrays under random distribution in xyz space is derived when the circular piston transducers are used as the array element, which is used to analyze the directivity and acoustic pressure of conical transducer arrangements. In addition, a practical approach to analyze the directivity and acoustic pressure of transducer arrays under random arrangements is proposed. Findings. The conical transducer arrays show side lobes at higher frequency. Below the frequency of 2 kHz, array directivity shows rapid changes. Above the frequency of 2 kHz, array directivity varies slowly with frequency. Besides, the beam width is Θ−3 dB≤29.85°.
ISSN:1024-123X
1563-5147
DOI:10.1155/2021/6670277