The Effects of Manufacturing Inaccuracies in an Underwater Acoustic Projector Array on the Acoustic Interactions

被引：1
|
作者：
Lee, Hoontaek [1 ]
Moon, Wonkyu [1 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mech Engn, Pohang 790784, South Korea
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2021年 / 68卷 / 04期
关键词：
Integrated circuit modeling; Acoustics; Loading; Manufacturing; Acoustic arrays; Load modeling; Beam steering; manufacturing tolerance; mutual radiation impedance; phase control; piezoelectric transducer; radiation coupling; sound navigation and ranging (SONAR) system;
D O I：
10.1109/TUFFC.2020.3032762
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
We report on the importance of considering manufacturing inaccuracies in underwater acoustic projectors by elucidating how small variations affect the response characteristics of a projector array in the presence of mutual-loading effects. A wave-based distributed mechanical model accurately calculates the changes arising from small variations, so rapid changes occurring in the vicinity of the transducer resonance can be simulated. The results showed the effects of mutual loading between projector units and confirmed that the changes can be drastically intensified in the presence of manufacturing inaccuracies. A voltage adjustment method to compensate for these changes is also demonstrated as a solution. This framework could guide the design of projector arrays in sound navigation and ranging (SONAR) systems for a variety of applications and, in particular, may contribute significantly to determining manufacturing tolerances.
引用
收藏
页码：1288 / 1295
页数：8
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