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          M型电磁传感器检测裂纹的仿真分析及参数优化

          2013-06-12 《中国测试》杂志

          左宪章, 钱苏敏▄■▓, 张  云, 常  东
          (军械工程学院无人机工程系,河北 石家庄 050003)
          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█■▄。
          关键词:脉冲涡流;M型传感器;裂纹检测███;参数优化
          中图分类号:TP212;TP391.9;TH878▓▓;TG115.28       文献标志码:A      文章编号:1674-5124(2013)03-0065-05
          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.
          Key words: pulsed eddy current; M-type sensor; cracks detection▓▄▓▄; parametric optimization
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