刀型Terfenol-D传感器激励线圈对激励效果的影响  

The Influence of Knife Type Terfenol-D Sensor Excitation Coil on Excitation Effect

作　　者：姜银方[1] 陈波 雷玉兰[2] 郭永强 刘兵 匡泓锦 蒋俊俊[1] JIANG Yinfang;CHEN Bo;LEI Yulan;GUO Yongqiang;LIU Bing;KUANG Hongjin;JIANG Junjun(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;Zhenjiang Sub-branch,Jiangsu Special Equipment Safety Supervision Inspection Institute,Zhenjiang 212009,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]江苏省特种设备安全监督检验研究院镇江分院,江苏镇江212009

出　　处：《电子科技》2018年第8期35-37,55,共4页Electronic Science and Technology

基　　金：江苏省质量技术监督局2015年科技项目(KJ155419)

摘　　要：针对Terfenol-D传感器能够适用于管道任意表面检测问题,文中设计了一种刀型结构Terfenol-D传感器来实现与管道任意表面耦合。运用传输线法研究刀型结构Terfenol-D传感器的激励线圈参数对激励效果的影响。建立管道导波检测试验系统,分别采集线径为0.1~0.3 mm和线圈匝数为60~240匝多组检测信号样本,从信号样本中提取第一条焊缝的回波系数并绘制不同的图形进行分析。试验结果表明,回波系数随着线圈匝数的增加而增大;回波系数随着线径的增加呈现先增大后减小的趋势;该结构的最佳激励线圈参数为线圈匝数为180匝,线径为0.15 mm。A Terfenol-D sensor with a knife structure is designed to meet the problem of arbitrary surface inspection of the pipe. The Terfenol-D sensor can be applied to any surface of the pipe. The influence of the excitation coil parameters of the Terfenol-D sensor on the excitation effect is studied by using the transmission line method. The test system of pipeline guided wave detection was established,and the samples with the diameter of 0. 1- 0. 3 mm and the turns of the coil were collected from 60 to 240 turns. The echo coefficients of the first weld were extracted from the signal samples and plotted Different graphics for analysis. The experimental results show that the echo coefficient increases with the number of turns of the coil. The echo coefficient increases first and then decreases with the increase of the diameter. The optimal excitation coil parameter is the coil turns 180 turns,diameter of 0. 15 mm.

关 键 词：刀型Terfenol-D 传输线法 激励线圈 回波系数 线圈匝数 线径 

分 类 号：TN603.5[电子电信—电路与系统]