2021•2021 OES China Ocean Acoustics (COA)Requires access
Research on Segmented Circular Transducer with Adjustable Transmitting Directivity
Qiang Shi, Pengkun Zhao, Hong Xu, Zhengyao He
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Abstract
This paper studies the method of transmitting beam design and directivity adjustment of segmented circular transducer. The modal synthesis method is used to design the transmitting beam pattern of segmented circular transducer, and a method of adjusting the beam directivity by using the superposition of multiple orthogonal acoustic radiation poles is proposed. A three-dimensional finite element model of segmented circular transducer is established by using finite element method, and the transmitting beam directivity of the transducer is controlled by applying the optimized weight to each channel of the transducer. Finally, the segmented circular transducer is designed and manufactured, and the experiment is carried out in the anechoic water tank to verify the method of beam design and directivity adjustment of the segmented circular transducer proposed in this paper.