The wavelet coefficient of the feature band was regarded as the feature parameter of the Acousto Ultrasonic signal and it can distinguish defects from the adhesively bonded joints.
以此特征频带的小波变换系数作为声-超声信号特征参数，可分辨出胶接区域的缺陷信号。
This paper introduces the basic principle, features, system configuration of Acousto-Ultrasonic Assessment and the apparatus structure.
本文介绍了声-超声评定的基本原理、特点、系统配置及典型声-超声仪器的结构。
This paper introduces the basic principle, features, system configuration of Acousto-Ultrasonic Assessment and the apparatus structure.
本文介绍了声-超声评定的基本原理、特点、系统配置及典型声-超声仪器的结构。
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