该书是在无损评价中使用超声频谱分析(以下简称声谱分析)的一本专著,1981年由美国plenum公司出版。在超声检测中,对缺陷定量的要求日益强烈,因此,仅对缺陷定位是不够的,还须给出其尺寸、形状以及材料的微结构信息。由于材料的很多特性都表现 The book is a monograph used in the non-destructive evaluation of ultrasonic spectroscopy (hereinafter referred to as acoustic analysis), published by the United States plenum in 1981. In ultrasonic testing, the requirement of quantitative determination of defects is becoming stronger and stronger. Therefore, it is not enough to locate the defects only, but the size, shape and microstructure information of the materials must also be given. Due to the many characteristics of the material