Research on model testing of a new ultrasonic multi-wav detecting method     

王兵团  冯永革  庞坤  崔建英  卓琳  陈立成 《地震学报(英文版)》2006,(1)

The traditional crack exploring method with echo (reflected wave) in metals is called the ″single-wave de-tecting method″ that uses a probe of single weight. This method is not able to detect directly the size and shape of the crack and the result can only be obtained by relative comparison, that is to compare the echo amplitudes of the unknown quantity (crack) with the known quantity (regular artificial crack) to determine the equivalent size and shape of a certain crack. In this way, the s…  相似文献   

超声多波检测新方法模型试验研究     

王兵团  冯永革  庞坤  崔建英  卓琳  陈立成 《地震学报》2006,28(1):105-104

传统金属回波(反射波)探伤法,我们称之为"单波检测法",用的是单分量探头.此方法不能直接检测伤的大小和形状,只能采用相对比较的方法,即用未知量(伤)与已知量(规则的人工伤)的回波振幅相比较的方法,来确定伤的当量大小和形状.此方法可以基本确定伤的位置,但不是实际伤的大小、形状和位置,不能满足实际部门的需要.下面引入新方法,即"多波检测法".这一新方法能直接检测伤的大小、形状和位置.  相似文献   

Research on model testing of a new ultrasonic multi-wave detecting method     

王兵团  冯永革庞坤 崔建英卓琳  陈立成 《地震学报(英文版)》2006,19(1):108-112

The traditional crack exploring method with echo （reflected wave） in metals is called the ＂single-wave detecting method＂ that uses a probe of single weight. This method is not able to detect directly the size and shape of the crack and the result can only be obtained by relative comparison, that is to compare the echo amplitudes of the unknown quantity （crack） with the known quantity （regular artificial crack） to determine the equivalent size and shape of a certain crack.  相似文献