超声换能器声学透镜的基本考量

Basic considerations of acoustic lenses for ultrasonic transducers.

作者信息

Ichinose R M, Machado J C

机构信息

Biomedical Engineering Department-COPPE/UFJ, Brazil.

出版信息

Med Prog Technol. 1994;20(1-2):53-8.

PMID:7968866

Abstract

This is a theoretical and experimental work that provides an acoustic lenses' computer simulation program for ultrasonic transducers. The program may be used as a tool to aid in the design of acoustic lenses, giving an estimation of the ultrasonic beam characteristics generated by various types of lenses. Spherical, conical and toroidal lenses were designed and manufactured for a 2.7 MHz transducer with 12.7 mm diameter face. Theoretical and experimental results are consistent considering the effective diameter of the transducer, a concept introduced in this work.

摘要

这是一项理论与实验相结合的工作，它为超声换能器提供了一个声透镜的计算机模拟程序。该程序可用作辅助声透镜设计的工具，能估算出各种类型透镜所产生的超声束特性。针对一个直径为12.7 mm、频率为2.7 MHz的换能器，设计并制造了球面、圆锥面和环面透镜。考虑到换能器的有效直径（这是本工作中引入的一个概念），理论和实验结果是一致的。