基于电磁超声的钢板裂纹检测系统
Detection System About Steel Cracks Based on Electronic Ultrasonic
摘 要
设计了一种基于磁致伸缩原理的电磁超声裂纹检测系统。该系统由脉冲电源激励换能器线圈, 进而在钢板中激发超声波, 接收信号经过放大滤波后输入计算机进行处理。利用此系统进行钢板裂纹检测试验, 裂纹定位误差<1%。系统运行稳定可靠, 可以用来检测钢板裂纹缺陷。
电磁超声换能器
裂纹检测
脉冲电源
Magnetostriction
Electromagnetic acoustic transducer
Crack detection
Pulse electrical source
Abstract
A kind of electronic ultrasonic crack detection system based on magnetostriction was presented. The pulse electrical source excited the transducer coil to generate ultrasonic in the steel plane; the received signal was amplified and filtered before importing to the computer for disposition. Cracks detection experiments were completed by this system, and the detection error of cracks location was less than 1%. The whole system could run reliably, and could be used for steel cracks detection.
中图分类号 TP23 TG115.28
所属栏目 仪器方法
基金项目 国家高技术发展研究计划(863)资助项目(2007AA06Z223)
收稿日期 2008/4/24
修改稿日期
网络出版日期
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备注张永生(1981-), 男, 硕士研究生, 主要研究电磁超声检测技术。
引用该论文: ZHANG Yong-Sheng,HUANG Song-Ling,ZHAO Wei,WANG Shen,DONG Jia-Rui. Detection System About Steel Cracks Based on Electronic Ultrasonic[J]. Nondestructive Testing, 2009, 31(4): 307～310
张永生,黄松岭,赵伟,王珅,董甲瑞. 基于电磁超声的钢板裂纹检测系统[J]. 无损检测, 2009, 31(4): 307～310
被引情况:
【1】胡力,严仍春, "电磁超声脉冲激励电路的设计",理化检验－物理分册 49, 174-176(2013)
【2】汪开灿,康 磊,翟国富,王淑娟, "基于USB的电磁超声数据采集及分析系统的设计",无损检测 32, 825-828(2010)
【3】苏日亮,康 磊,冯剑钊,王淑娟,翟国富, "基于电磁超声斜入射SV波的厚壁管道裂纹检测系统",无损检测 32, 641-644(2010)
【4】刘燕,王悦民,孙丰瑞,申传俊, "板状结构缺陷电磁超声导波检测技术研究进展",无损检测 34, 60-66(2012)
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参考文献
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【3】Lacheisserie E T. Magnetostriction: Theory and Applications of Magnetoelasticity[M]. Boca Ratyon: CRC Press,1993: 168-200.
【4】Alers G A, Burns L R. EMAT designs for special applications[J]. Materials Evaluation,1987,(45): 1184-1189.
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