Pulsed Magnetic Fluz Leakage Testing for Defect Detection on Steel-pipe

摘要：

Magnetic flux leakage techinique(MFL) have been widely used for steel products detection. The main magnetization methods are in form of DC、AC and permanent magnet. We presents a pulsed alternating current magnetizing method. The probe is driven with square waveform and the rich frequency components can provide much information about near surface or sub-surface defect of sample. The principle of pulsed magnetic flux leakage testing (PMFL) is introduced.The PMFL testing system have been established to examine the steel pipe of different depth defects.The time domain transient response signal of PMFL is analyzed. The experiment results shows that PMFL can provide additional information about the defect size,and has the advantage of fast speed and quantification,this makes this method have the broad using foreground in the testing of steel pipe.

关键词： pulsed magnetic fluz leakage testing defect signal pipeline

作者: Tang Ying Luo FeiLu Pan MengChun Li Ji

作者单位: College of Mechatronics Engineering and Automation,National University of Defence Technology,Changsha,China,410073

会议类型: 国际会议

会议名称: 第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)

会议地点: 重庆

会议语种:英文

页码: 9-12

在线出版日期: 2009-08-01（万方平台首次上网日期，不代表论文的发表时间）