基于分形理论的平面线圈激励涡流传感器
发布时间：2019-06-09 14:18
【摘要】：提出并设计了一种基于分形理论自相似结构的科赫雪花图形激励装置的涡流传感器,利用COMSOL多物理场仿真软件进行了计算分析,在此基础上搭建实验平台并进行了实验验证.结果表明,与采用经典的圆形线圈激励方式相比,以科赫雪花图形为激励装置的涡流传感器,能有效提高局部涡流能量密度,改善涡流分布形态,从而提高对微小裂纹缺陷检测的灵敏度.实验表明所研制的新型平面结构涡流传感器,可以制作用于柔性阵列传感器,并能为结构健康监测中提供监测数据.
[Abstract]:A vortex sensor based on fractal theory self-similar structure of Koch snowflake graphic excitation device is proposed and designed. The calculation and analysis are carried out by using COMSOL multi-physical field simulation software. On this basis, the experimental platform is built and verified by experiments. The results show that compared with the classical circular coil excitation method, the vortex sensor with Koch snowflake pattern as the excitation device can effectively increase the local vortex energy density and improve the vortex distribution pattern. So as to improve the sensitivity of micro crack defect detection. The experimental results show that the new planar structure vortex sensor can be used in flexible array sensor and can provide monitoring data for structural health monitoring.
【作者单位】： 北京理工大学机械与车辆学院;
【基金】：国家自然科学基金资助项目(51275048)
【分类号】：TP212
[Abstract]:A vortex sensor based on fractal theory self-similar structure of Koch snowflake graphic excitation device is proposed and designed. The calculation and analysis are carried out by using COMSOL multi-physical field simulation software. On this basis, the experimental platform is built and verified by experiments. The results show that compared with the classical circular coil excitation method, the vortex sensor with Koch snowflake pattern as the excitation device can effectively increase the local vortex energy density and improve the vortex distribution pattern. So as to improve the sensitivity of micro crack defect detection. The experimental results show that the new planar structure vortex sensor can be used in flexible array sensor and can provide monitoring data for structural health monitoring.
【作者单位】： 北京理工大学机械与车辆学院;
【基金】：国家自然科学基金资助项目(51275048)
【分类号】：TP212
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