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.
-
-
[1] 郭伟灿, 许辉庭,张拥军,等.圆柱曲界面对垂直入射法超声检测的影响分析[J].压力容器,2011,28(3):22-27. [2] 施克仁, 郭寓岷. 相控阵超声成像检测[M]. 北京:高等教育出版社,2010. [3] 牟彦春, 金南辉,葛翔.电站锅炉接管座角焊缝超声相控阵检测技术[J].无损检测,2011,33(1):75-78. [4] MIAO C J, GUO W C, LING Z W, et al. Inner detection of corrosion by ultrasonic phased array in underground compressed natural gas storage well[C]//Proceedings of the ASME 2016 Pressure Vessels & Piping Division Conference, Vancouver:ASME,2016.
[5] 郭伟灿, 钱盛杰. 换热器管板角焊缝相控阵自动超声检测技术研究[J]. 压力容器, 2015(8):69-74. [6] 杨平华. 相控阵超声检测关键参数优化研究[D]. 大连:大连理工大学,2011. [7] 郑晖, 林树青.超声检测[M]. 北京:中国劳动社会保障出版社,2008.
计量
- 文章访问数: 1
- HTML全文浏览量: 0
- PDF下载量: 1
下载:
