声发射试验技术,本文缩写为A.E.A.(Acoustic Emission Analysis)是以二十多年前发现的现象为基础的。这现象是指在应力作用下的材料中的弹性能瞬间脉冲的发射。如果把这种发射探出并加以分析,则可得到有关应力作用下结构中存在的缺陷的资料。现在,这一发展了的技术在许多工业部门中正被用于鉴定或重新鉴定承压系统结构的可靠性。A.E.A.无损探伤试验技术的优点在于以准确而迅速的方法评定整个承压系统,为了安装传感器只需要结构上具有一小块外露面积。它消除了大多数无损探伤试验所需要的寻找缺陷和找出缺陷这一过程,无需拆除 Acoustic emission test techniques, abbreviated herein as A.E.A. (Acoustic Emission Analysis), are based on the phenomena found more than twenty years ago. This phenomenon refers to the instantaneous impulse of elastic energy in the material under stress. If such launches are tapped out and analyzed, information is available about the defects in the structure under stress. This developed technology is now being used in many industries to identify or re-qualify the reliability of pressure-bearing system structures. A.E.A. The advantage of nondestructive testing techniques is that the entire pressure system is assessed in an accurate and rapid way, requiring only a small exposed area for the installation of the sensor. It eliminates the need to find defects and identify defects that most NDT tests require without dismantling