基于不同阵元换能器阵列的指向性研究

Research of transducer array directivity based on different array elements

分别以圆形、圆环形和矩形活塞声源为阵元组成线列阵,得出3种阵列的指向性函数,并对其指向性进行了对比分析.结果表明,阵元的形状、间距、尺寸、数目对指向性有一定的影响,在条件相当的情况下,圆环形阵元组成的阵列指向性最好.

Line array is made up of circular,circle ring-like and rectangular piston acoustic source as array element,the directivity functions about three kinds of array are obtained,and the contrastive analysis on its directivity is made.The results show that the array element shape,the spacing,the size,the number have certain influence on the directivity,in the same situation,the directivity of line array composed of circle ring-like array element is most superior.