电磁超声检测技术在石油管行业板材和管材检测中的应用
Appliance of Electromagnetic Acoustic Transducer Technology in the Oil Steel Pipe Industry
摘 要
简述了电磁超声检测技术的基本原理以及电磁超声检测的两个重要组成部分, 高频线圈和磁铁的优化设计、检测方法和检测结果, 举例说明了该技术在石油管行业板材和管材检测中的应用, 同时说明了该检测方法的优势和局限性。该方法可有效应用于板材和管材的检测, 可靠性、准确度和检测效率能达到传统的自动超声检测水平。电磁超声检测(EMAT)是一种可靠的新型无损检测方法, 将逐渐在石油管行业领域得到广泛应用。
高频线圈
磁铁
检测
Electromagnetie acoustic transducer(EMAT)
High-frequency coil
Electromagnet
Detection
Abstract
Descriptions were made of the theory of electromagnetic acoustic transducer (EMAT) technology. The optimization design, test method and effectiveness of the two important parts of electromagnetic acoustic transducer of high-frequency coil and electromagnet were expounded. The detecting effectiveness of EMAT for the sheet material and tubular products were illustrated with examples. Moreover the advantages and limitations of this method were also shown. Test results show that the method can be used to test the sheet material and tubular product and its reliability, accuracy and detection efficiency are better than the AUT. It is a new-style NDT method. It is considered that electromagnetic acoustic transducer technology will be widely used in petroleum industry.
中图分类号 TG115.28
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收稿日期 2013/12/20
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备注余国民(1980-), 男, 本科, 工程师, 主要从事油气输送管无损检测技术工作。
引用该论文: YU Guo-min,LI Li,YANG Zhao. Appliance of Electromagnetic Acoustic Transducer Technology in the Oil Steel Pipe Industry[J]. Nondestructive Testing, 2014, 36(10): 78～83
余国民,李黎,杨钊. 电磁超声检测技术在石油管行业板材和管材检测中的应用[J]. 无损检测, 2014, 36(10): 78～83
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参考文献
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【2】唐彦林. 电磁超声在板材探伤中的应用[J].焊管, 2005, 28(6): 44-45.
【3】张广纯. 电磁声技术的进展与应用[J] . 无损检测, 1990, 12(4): 103-105.
【4】高松巍, 李冰, 刑燕好. 电磁超声在钢管探伤中的应用[J].沈阳工业大学学报, 2009(10): 582-585.
【5】张勇, 陈强, 孙振国, 等. 用于无损检测的电磁声换能器研究进展[J]. 无损检测, 2004, 26(6): 275-277.
【6】LICHT H. Eni beitrag zur beruhrungslosen anregung von plattenwellen[J].Acoustics, 1972, 27( 2) : 131-134.
【7】OGI H, HIRAO M, OHTANI T. Line- focusing of ultrasonic SV wave by electromagnetic acoustic transducer[J] . Journal of the Acoustical Society of America, 1998, 103(5): 2411-2415.
【8】OGI H, HIRAO M, OHTANI T. Line- focusing electromagnetic acoustic transducers for the detection of slit defects[J] . IEEE Tran Ultrasonics, Febroelectrics, and Ferquency Control, 1999, 46(2): 341-366.
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