摘要
相控声源是利用控制多个按一定规律排列声源的激励时间,使声源的声波在传播中形成相位差,从而实现声聚焦。为使相控声源阵列的聚焦性达到最优化,必须为相控声源阵列选取最佳的排列方式。利用Matlab软件对声源阵列的矩阵方正阵列和散射圆盘阵列2种排列方式的阵元数目、阵列面积和焦点声压3项参数进行计算和比较。计算表明,矩阵方正阵列阵元总数连续性好,焦点声压误差小,工程上实现容易,更符合实际需求。
Acoustic phased source makes use of controlling the impelling time of multi-sources arrayed by a certain rule, which makes acoustic waves of each source form phase offsets in transmission to achieve acoustic focusing. In order to get the best performance of focus of acoustic phased source arrayed, it must chose the best arrayed way for the acoustic phased source arrayed. A source arrayed has two possible ways to array, matrix square and scattering disk. This paper uses software of Matlab to calculate three parameters of matrix square and scattering disk, which contain the number of element of array, area of sources arrayed and acoustic pressure of focus. And compared each parameter of the two ways. The caleulational results indicate that matrix square has a better continuity of sources＇ amount, a smaller error to pressure of sound, and easily to be achieved in project, which fits practical needs.
出处
《舰船科学技术》
北大核心
2014年第7期90-93,共4页
Ship Science and Technology
关键词
声聚焦
相控声源
声源阵列
矩阵方正阵列
散射圆盘阵列
acoustic focusing
acoustic phased source
sources arrayed
matrix square
scattering disk
