基于声信号识别的焊后残余应力处理质量检测方法

陈一帆,吴倩,蒋凌,华亮

Detection method of post-weld residual stress treatment quality based on acoustic signal recognition

Yi-fan CHEN,Qian WU,Ling JIANG,Liang HUA

图4 焊后残余应力处理质量不同时声信号的短时平均过零率对比

Fig.4 Comparison of short-time average zero-crossing rate of acoustic signals with different qualities of post-weld residual stress treatment