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7 问:对距离-波幅曲线定量法(AVG 法)的理论依据我不甚清楚,用此法得出的缺陷尺寸与自然缺陷的真实大小有否对应关系,您是否能较详细地讲讲。答:可以.距离-波幅曲线定量法是60年代初期德意志联邦共和国 Kratkr(?)mer 博士从活塞声源中心轴声压分布的表达式发展出来的对小于声束截面的映陷定量的一种方法,即我们称之为 AVG 当量法,这种定量方法对于几何形状理想的(垂直于声束的)小平面反射体,理论计算与实验结果符合得相当好.因此早期人们以为对缺陷的定量问题似乎得到解决。随
Q: I do not know the theoretical basis of the distance-amplitude curve method (AVG method). Whether the size of the defect obtained by this method corresponds to the true size of the natural defect can you elaborate in more detail. A: Yes, the distance-amplitude curve quantification method was developed in the early 1960s by Kratkirmer, MD, from the axis sound pressure distribution at the center of the piston source, Method, which we call the AVG equivalence method, which is reasonably well matched with the experimental results for geometrically ideal (perpendicular to the beam) facets, so early estimates of defects The problem seems to be solved. With