板状结构缺陷电磁超声导波检测技术研究进展  

Progress in Research of Electromagnetic Acoustic Transducer Technique for the Plate-Like Structure Defect Detection

作　　者：刘燕[1] 王悦民[2] 孙丰瑞[2] 申传俊[2] 

机构地区：[1]海军工程大学理学院,武汉430033 [2]海军工程大学船舶与动力学院,武汉430033

出　　处：《无损检测》2012年第10期60-66,共7页Nondestructive Testing

基　　金：中国博士后科学基金资助项目(20110491881);2012年湖北省博士后科技活动择优资助项目

摘　　要：概述了国内外板状结构缺陷电磁超声导波检测技术的研究进展。从激发兰姆波的电磁超声换能器(EMAT)技术、EMAT的优化设计、超声导波聚焦、EMAT接收信号超声波成像技术等方面,对板状结构缺陷无损检测技术取得的突破进行了评述。提出了有待进一步解决的问题。The recent research advances in Electromagnetic Acoustic Transducer technique for the plate-ike structure defect detection were reviewed. An important introduction about progresses in Electromagnetic Acoustic Transducer Technique for the plate-like structure defect detection was given including lamb wave generation with EMAT, design and optimization of EMAT, ultrasonic guided wave focusing technique and imaging technique. Some direction or issues which should be further researched and its benefit for this technique to be popularized and applied were put out also.

关 键 词：板状结构 电磁声换能器 聚焦 超声波成像 

分 类 号：TG115.28[金属学及工艺—物理冶金]