A Simulation Study of the Beam Steering Characteristics for Linear Phased Arrays

被引：0
|
作者：
Shi-Chang Wooh
Yijun Shi
机构：
[1] Massachusetts Institute of Technology,Department of Civil and Environmental Engineering
来源：
Journal of Nondestructive Evaluation | 1999年 / 18卷
关键词：
phased array transducers; dynamic beam steering; acoustic pressure field; optimum array transducer design; numerical simulation; visualization and imaging;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ultrasonic beam steering characteristics for linear phased array transducers are simulated numerically by visualizing the full-field acoustic pressure field of the waves radiated from a linear phased array transducer. The influences of various transducer parameters on the beam steering properties are studied, including number of elements, inter-element spacing, element size, frequency of the transducer and the steering angle. In addition, the effects of these parameters on the near field characteristics are investigated by analyzing the acoustic pressure profile in the steering direction. The simulation results agree well with the analytical solutions which are valid only in the far field. A suggested scheme for optimal transducer design is presented.
引用
收藏
页码：39 / 57
页数：18
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