Research on Array Structures of Acoustic Directional Transducer. (4th January 2021)

• Record Type: Journal Article
• Authors: Zhao, Guozhu; Shi, Kaibo; Zhong, Shouming
• Other Names: Ding Shihong Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2021(2021)
• Publication Date: 2021-01-04
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2021/6670277
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : 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 ° .