Phased array ultrasonic technology with convex acoustic lens
摘 要
带凸面声透镜的相控阵超声技术通过设置与工件表面曲率相匹配的凸面透声楔块来改善平面探头与凹面工件的界面耦合效果,同时,凸面声透镜在圆周方向上有一定的声束聚焦作用,可有效降低凹界面的耦合损失对检测造成的不利影响。将带凸面声透镜的相控阵超声技术应用于承压设备插入式管座角焊缝的质量检测,结合实时成像技术,可以直观地显示缺陷的位置、分布、尺寸等信息,解决了管座角焊缝超声检测耦合效果差的技术难题。
Abstract
In this work, the phased array technology with convex acoustic lens was adopted, and the convex acoustic wedge matched with the workpiece surface was used to improve the interface coupling effect. At the same time, the convex acoustic lens has a certain focusing effect in the circumferential direction. The above coupling and focusing method can effectively overcome the adverse effect of the coupling loss. The phased array technology with convex acoustic lens was applied to the quality inspection of pipe socket angle seam of the pressure equipment. Combined with real-time imaging technology, the position, distribution, dimensions and other information of defects can be displayed intuitively, and the technical difficulties of bad interface coupling effect of ultrasonic inspection in pipe socket angle seam were then solved.
中图分类号 TG115.28 DOI 10.11973/wsjc202103006
所属栏目 2020远东无损检测新技术论坛论文精选
基金项目 浙江省重点研发项目(2020C01040);浙江省质量技术基础建设项目(20200111);佛山仙湖实验室开放基金重大项目 (XHD2020-004)
收稿日期 2020/11/20
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备注郭伟灿(1968-),男,博士,教授级高工,主要研究方向为特种设备技术与管理
引用该论文: GUO Weican,MIAO Cunjian,DU Xingji,TENG Guoyang,SONG Xin. Phased array ultrasonic technology with convex acoustic lens[J]. Nondestructive Testing, 2021, 43(3): 27~31
郭伟灿,缪存坚,杜兴吉,滕国阳,宋鑫. 带凸面声透镜的相控阵超声检测技术[J]. 无损检测, 2021, 43(3): 27~31
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参考文献
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