现代制造工程Issue(5)：8-11,54,5.
导电板上方涡流检测探头阻抗的快速计算与仿真
The fast calculation and simulation for the impedance of coil above conductive plate
摘要
Abstract
A fast calculation method based on the Maxwell equations, the magnetic vector potential and truncated region eigen-function 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.关键词
导电板/涡流检测/线圈阻抗/解析计算/有限元仿真Key words
conductive plate/eddy current testing/coil impedance/analytical calculation/finite element simulation分类
矿业与冶金引用本文复制引用
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):8-11,54,5.基金项目
国家自然科学基金项目(51175321) （51175321）
上海市教委科研创新项目(12YZ154) （12YZ154）
上海工程技术大学科研启动项目(A050009254) （A050009254）
