基于声检测的爆炸冲击场剖面可视化技术

阐述了声发射的检测原理,研究了冲击波作用下物体的声发射特性,并利用声发射的不可逆效应(Kaiser效应),提出了一种基于测试的冲击场层析技术.给出了实现流程图及其若干关键技术,如主副鉴别、前沿鉴别等.实验结果表明该技术有一定的实用性,为冲击波作用下物体内部的位错形成和滑移机制的研究提供了一种手段.最后对下一步要解决的问题进行了说明.

Computerized Tomography of Shock Field based on Acoustic Emission

The paper describes the measuring principle of(AE) firstly.Then the AE characteristics of an object under the action of a shock wave are studied.Furthermore,the computerized tomography technique of shock field,which is based on Kaiser effect,is brought forward.The paper also presentcs the flow chart and some key techniques,such as the techniques of preceding discrimination and discrimination the main form secondary,etc.The experimental result shows that the technique is practical as well as it can provides an effective means for the study of the object internal dislocation formation and slip mechanism.Finally,some problems need to be solved in the future are discussed.