experimental study and theoretical analysis on evaluation of flaw echo features and mode recognition were carried out on the basis of three types of welding flaws.
以三种焊接缺陷为对象,研究了缺陷回波特征的评价与模式识别。
it is often misjudged the flaw echo in ultrasonic examination that the echo signals produced by sound field property and geometrical shape of the component examined according to sound field theory.
超声探伤中,由于声场特性、件几何形状的影响,所产生的各种回波信号常常被误判为缺陷信号。
in the process of ultrasonic testing, the quality of flaw echo signals in a-scan lay a better determinant foundation for locational, quantitative and qualitative evaluation.
超声检测中缺陷回波信号的质量是实现缺陷定位定量定性分析与评价的基础,去噪是超声检测信号处理中很重要的环节。