小角度纵波探头回波分析  

Echo Analysis on Small-angle Longitudinal Wave Probe

作　　者：路鹏程[1] 牛晓光[2] 张文建[1] 

机构地区：[1]华北电力大学机械工程系,河北保定071003 [2]河北省电力研究院,河北石家庄050021

出　　处：《热加工工艺》2012年第15期205-207,共3页Hot Working Technology

摘　　要：小角度纵波探头在实际探伤过程中,出现大幅度的底波回波,且缺陷波与底波回波混在一起难以分辨;同时,缺陷回波出现在底波之后,在探伤过程中,给我们带来了很大的困惑。为此,本文通过试验数据、声路分析,对上述问题做解释。Large amplitude bottom wave echo appears while small-angle longitudinal wave probing in practical detection. And the defect wave echo and bottom wave echo are difficult to distinguish. The defect wave echo appears aiter bottom wave echo making confuse. So the above problems were explained by the analysis of experimental data and propagation path.

关 键 词：小角度纵波探头 底波回波 缺陷波滞后 

分 类 号：TG115.28[金属学及工艺—物理冶金]