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.
出处
《锅炉制造》
2001年第2期67-69,75,共4页
Boiler Manufacturing
关键词
超声探伤
付声束
几何信号
焊缝
回波信号
ultrasonic examination
subsidiary beam
geometrical reflection
