摘要
圆柱阵换能器具有水平全向的优势,已广泛应用在水声探测领域。文章研究了一款宽带圆柱阵,利用匹配层技术拓宽圆柱阵阵元的带宽,通过有限元仿真优化单个换能器阵元带宽、发送电压响应和阻抗等参数。同时通过仿真以阵元错位密集方式形成圆柱阵,对阵元的个数及排列方式进行仿真优化,制作了一款宽带圆柱阵并进行了测量,圆柱阵直径为400 mm,高度为435 mm,圆柱阵的工作频段为20~30 kHz,频带内起伏3 dB,最大发送电压响应为160.5 dB,圆柱阵−3 dB水平波束宽度为360°。
The cylindrical transducer array has been widely used in underwater acoustic detection due to its horizontal non-directivity.A broadband cylindrical transducer array is studied in this paper.The bandwidth of each array element of the cylindrical transducer array is broadened by matching layer technology,and the parameters of the element,such as bandwidth,transmitting voltage response and impedance are optimized by finite element simulation.The cylindrical transducer array is formed by dislocated arrangement of array elements through simulation,at the same time the number and arrangement of array elements are optimized.A broadband cylindrical transducer array with a diameter of 400 mm and a height of 435 mm is developed and measured.The operating frequency band of the cylindrical array is 20-30 kHz with an internal fluctuation of 3 dB,a maximum transmitting voltage response reaches160.5 dB,and the-3 dB horizontal beamwidth is 360°.
作者
童晖
周博文
张彬
杨长庚
王佳麟
赵欣
TONG Hui;ZHOU Bowen;ZHANG Bin;YANG Changgeng;WANG Jialin;ZHAO Xin(Shanghai Acoustic Laboratory,Institute of Acoustics,Chinese Academy of Sciences,Shanghai 201815,China)
出处
《声学技术》
CSCD
北大核心
2020年第6期779-782,共4页
Technical Acoustics
关键词
匹配层
宽带
圆柱阵
matching layer
broadband
cylinder array
