压力容器2016，Vol.33Issue(7)：69-75,7.DOI:10.3969/j.issn.1001-4837.2016.07.012
超高压水晶釜周向检测超声柔性相控阵技术研究
Research on Ultrasonic Flexible Phased Array Technology for Circumferential Testing of Ultra-high Pressure Crystal Kettle
摘要
Abstract
For the ultra-high pressure crystal kettle with the ratio of inner radius to outer radius less than 0.6,the conventional circumferential ultrasonic testing could not receive satisfied performance,because of the low sensitivity,locating defects difficultly.Comparing to conventional ultrasonic testing,ultrasonic phased array technology could realized the multi-angle,multi-direction scanning and dynamic focusing de-tection in the entire detecting region without replacement of probe and can visually display the location, distribution,size of defects utilizing the real time imaging technology.Based on the experimental study,the circumferential ultrasonic phased array technique is proposed for ultra-high pressure crystal kettle.A flexi-ble probe is designed which can be good match to the surface of ultra-high pressure crystal kettle.The fo-cal law is designed based on the curved shape and can effective excite the probe.The experimental result show that the flexible phased array technology proposed in this paper has high detection precision and re-liability for the detection of superficial and internal defects of ultra-high pressure crystal kettle.关键词
超高压水晶釜/柔性探头/超声相控阵/超声聚焦技术Key words
ultra-high pressure crystal kettle/flexible probe/ultrasonic phased array/ultrasonic focusing technology分类
机械制造引用本文复制引用
钟海见,郭伟灿,凌张伟..超高压水晶釜周向检测超声柔性相控阵技术研究[J].压力容器,2016,33(7):69-75,7.基金项目
浙江省质量技术监督系统科研计划项目 （）
