STUDY ON OIL AND GAS PIPELINE CRACK DETECTION METHOD BASED ON EMAT-GENERATED ULTRASONIC GUIDED WAVES

摘要：

The cracks in the walk of oil and gas pipelines pose a potential threat to these pipelines normal and safe operation, so they must be detected to guide pipeline maintenance and ensure pipeline integrity. This paper presents the research to detect the cracks in the pipe wall using axial ultrasonic guided waves generated by electromagnetic acoustic transducers (EMATs). An alternating winding magnetostrictive EMAT is developed first, and then used in crack detection experiments. The results show that EMAT-generated ultrasonic guided waves can effectively detect the circumferentially distributed cracks in the pipe wall, and it is a promising non-destructive testing method for pipeline crack detection.

关键词： Oil and gas pipeline crack detection ultrasonic guided waves EMAT

作者: Songling HUANG Shen WANG Wei ZHAO Jiarui DONG Kuansheng HAO

作者单位: State Key Lab of Power Systems,Dept. of Electrical Engineering,Tsinghua University Beijing,China

会议类型: 国际会议

会议名称: The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)

会议地点: 北京

会议语种:英文

页码: 490-493

在线出版日期: 2010-09-27（万方平台首次上网日期，不代表论文的发表时间）