Research of the Design and Simulation of Ultrasonic Focusing System with Phased Array

At present, the most common way of ultrasonic focusing is concave spherical self-focusing, ultrasonic focusing on lens and phased array ultrasonic focusing. Phased array ultrasonic focusing system is made up by multiple independent transducer unit array, according to the specific way and timing, real-time control of different arrays of ultrasonic signal phase. Established the ideal point source consisting of piezoelectric transducer phased array model 4 * 4 by the use of COMSOL, and results got the phased array focused in the simulation experiments.