作者：左宪章, 钱苏敏, 张云, 常东

作者单位：军械工程学院无人机工程系, 河北 石家庄 050003

关键词：脉冲涡流; M型传感器; 裂纹检测; 参数优化

摘要：

传统的脉冲涡流传感器采用圆柱式结构,其磁场大部分在空气中传播,造成能量的损失,因此该文设计M型电磁传感器在单线圈传感器上增加一个U型磁轭来提高磁场的利用率。通过ANSYS仿真软件对M型传感器与单线圈传感器检测不同深度的裂纹进行仿真对比,结果证明M型传感器的灵敏度高,信号强,同时对于传感器激励源参数进行优化。

Simulation analysis and parametric optimization of M-type pulsed eddy current sensors to detect cracks

ZUO Xian-zhang, QIAN Su-min, ZHANG Yun, CHANG Dong

Department of UAV Engineering, Ordnance Engineering College, Shijiazhuang 050003, China

Abstract: The single-coil sensor was used as the traditional pulsed eddy current sensor, but the magnetic field mostly spreads in the air, resulting in the loss of energy.So a M-type electromagnetic sensor is proposed.The M-type sensor is made of a single-coil and a U-shaped yoke which improved the utilization of the magnetic field.Based on ANSYS simulation, a comparison of the M-type sensor is carried out with the single-coil sensor in detecting the different depths of cracks.The simulation proves the effectiveness of the M-type sensor and the sensor excitation source parameters are optimized at the same time.

Keywords: pulsed eddy current; M-type sensor; cracks detection; parametric optimization

2013, 39(3): 65-69  收稿日期: 2012-7-12;收到修改稿日期: 2012-8-30

基金项目: 

作者简介: 左宪章(1963-),男,河北石家庄市人,教授,主要从事机械故障诊断及智能信息处理与识别方面的研究。

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