Inspection and Identification of Inner-outer Defects on Oil-gas Pipeline1
The paper discussed pipeline inner-outer defects inspection and identification methods in pipeline magnetic flux leakage (MFL) inspection. Inspection vehicle got across defects in some velocity, bringing residual MFL, its signal frequency and peak value depend on defects size,defects shape, defects in inner or outer, inspected by Hall element sensors. The results of this research indicate different character of defects MFL signal is a method of inspection and identification of inner-outer defects, improving integrity assessment of defects.
defects inspection inner-outer defects residual MFL
Lijian YANG Gang LIU Guoguang ZHANG Songwei GAO
Shenyang University Of Technology, Shenyang, 110025 Shenyang University Of Technology, Shenyang, 110025;Shenyang Institute Of Chemical Technology, Sheny
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
2574-2577
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）