超声探伤中付声束引起的回波信号  

THE ECHO SIGNALS PRODUCED BY THE SUBSIDIARY BEAM IN ULTRASONIC EXAMINATION

作　　者：高凤滨[1] 毕经滨[1] 夏建国[1] 湛宏[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《锅炉制造》2001年第2期67-69,75,共4页Boiler Manufacturing

摘　　要：超声探伤中 ,由于声场特性、工件几何形状的影响 ,所产生的各种回波信号常常被误判为缺陷信号。本文从声场理论及工件的结构特点进行分析 ,解释了一种超声探伤付声束引起的结构回波信号。It is often misjudged the flaw echo in ultrasonic examination that the echo signals produced by sound field property and geometrical shape of the component examined according to sound field theory.Introduce a structure echo signal by the subsidiary beam.

关 键 词：超声探伤 付声束 几何信号 焊缝 回波信号 

分 类 号：TG441.7[金属学及工艺—焊接] TG115.285