摘要
介绍用相控阵超声检测(PAUT),借助于缺陷衍射回波信号间距和波幅比,改善对缺陷进行定量定性的方法。缺陷快速定性(分类)和准确定量(测高)对在制检测和在用检测很有实用意义。期盼此法迅速推广应用于承压设备检测。
This article describes the improved method of determination and characterization of defects by using ultrasonic phased array techniques （PAUT） based on the distance between diffraction echoes from a defect and their amplitude ratio. Not only the accurate sizing is valuable for in-service inspection, but also the fast characterization is important for in-process inspection. There are high examination of pressure equipment as soon as oossible. expectations that the improved method can be applied to the
出处
《中国特种设备安全》
2013年第11期28-32,共5页
China Special Equipment Safety
关键词
相控阵超声检测(PAUT)
双波法衍射回波
定量
定性
面型缺陷
体型缺陷
Ultrasonic phased array technique （PAUT） Double-echo indication method Diffractedechoes Sizing Characterization Planar type of defects Volumetric type of defects
