| 导电板上方涡流检测探头阻抗的快速计算与仿真 |
| |
| 引用本文： | 张思全,胡盛斌,陆文华.导电板上方涡流检测探头阻抗的快速计算与仿真[J].现代制造工程,2012(5):8-11,54. |
| |
| 作者姓名： | 张思全 胡盛斌 陆文华 |
| |
| 作者单位： | 1. 上海海事大学物流工程学院,上海,200135
2. 上海工程技术大学航空运输学院,上海,201620 |
| |
| 基金项目： | 国家自然科学基金，上海市教委科研创新项目，上海工程技术大学科研启动项目 |
| |
| 摘 要： | 采用一种基于Maxwell方程组、矢量磁位和空间解域截取的级数展开快速计算方法,导出级数形式的导电板上方通电线圈阻抗变化表达式;通过设定适当的解域截取半径和级数求和项数,可以在保证计算精度的同时提高计算速度。在多种线圈激励频率下,分别采用级数展开法与有限元仿真法,对线圈的阻抗变化进行了计算,两种方法的计算结果非常吻合,相互验证了两种涡流检测计算模型的正确性。
|
| 关 键 词： | 导电板 涡流检测 线圈阻抗 解析计算 有限元仿真 |
The fast calculation and simulation for the impedance of coil above conductive plate |
| |
| Zhang Siquan
,
Hu Shengbin
,
Lu Wenhua.The fast calculation and simulation for the impedance of coil above conductive plate[J].Modern Manufacturing Engineering,2012(5):8-11,54. |
| |
| Authors: | Zhang Siquan Hu Shengbin Lu Wenhua |
| |
| Affiliation: | 1 School of Logistics Engineering,Shanghai Maritime University,Shanghai 200135,China; 2 College of Aviation Transportation,Shanghai University of Engineering Science,Shanghai 201620,China) |
| |
| Abstract: | A fast calculation method based on the Maxwell equations,the magnetic vector potential and truncated region eigenfunction expansion was proposed,the expression for the impedance change of the coil above a conductive plate was derived in the form of series form.When outer boundary length and the number of summation terms are selected properly,the computation time can be reduced considerably and at the same time preserve the computational accuracy.At different frequencies,the impedance change of the coil was calculated with series expansion approach and finite element method respectively,the results agreed very well and confirmed the suitability of the proposed eddy current testing calculation models. |
| |
| Keywords: | conductive plate eddy current testing coil impedance analytical calculation finite element simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
