检测用圆锥声透镜换能器的研究  

STUDY ON THE TRANSDUCER WITH CONICAL LENS FOR ULTRASONIC TESTING

作　　者：何家忠[1] 宋建勤 张福成[3] 

机构地区：[1]韶关大学物理系,广东韶关512005 [2]广东韶关钢铁集团公司,广东韶关512123 [3]陕西师范大学应用声学研究所,西安710062

出　　处：《无损检测》2001年第7期284-285,320,共3页Nondestructive Testing

摘　　要：通过数值计算和实际测量 ,研究圆锥声透镜聚焦换能器产生的声场 ,证实其能产生较细长的聚焦声束 ,且透镜形状参数对聚焦声场分布有明显影响。The sound fields generated by the transducers with conical acoustic lens were studied through numerical calculations and experiments. It was shown that a narrow sound beam over a longer axial range could be obtained by conical acoustic lens, and sound field characteristics were greatly affected by the shape parameters of the curved surface.

关 键 词：超声检验 换能器 聚焦超声 声场 无损检测 

分 类 号：TG115.285[金属学及工艺—物理冶金] TB552[金属学及工艺—金属学]