涡流渗透深度影响因素分析  

Analysis of Influencing Factors of Eddy Current Penetration Depth

作　　者：王闯龙 武美先[2] 张东利 姜禄 佟宇 WANG Chuanglong;WU Meixian;ZHANG Dongli;JIANG Lu;TONG Yu(School of Electronic Information Engineering,North Minzu University,Yinchuan 750021,China;Chemistry Science and Engineering College,North Minzu University,Yinchuan 750021,China;School of Mechanical and Electrical Engineering,North Minzu University,Yinchuan 750021,China)

机构地区：[1]北方民族大学电气信息工程学院,宁夏银川750021 [2]北方民族大学化学与化学工程学院,宁夏银川750021 [3]北方民族大学机电工程学院,宁夏银川750021

出　　处：《河南科技大学学报（自然科学版）》2020年第3期45-51,共7页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51667001);北方民族大学重点科研基金项目(2019KJ36);国家民委化工技术基础重点实验室一般科研项目(2017HG06)

摘　　要：在进行涡流检测时,由于在标准渗透计算公式中,未考虑到线圈外径、高度、匝数以及提离等因素对涡流线圈渗透深度的影响,故使用ANSYS有限元分析软件对涡流信号进行了仿真,并用试验对仿真结果进行了验证。研究结果表明:各因素对涡流密度均有影响,激励频率和线圈外径对渗透深度的影响明显较大,其他因素对渗透深度的影响较小。In eddy current testing,the influence of factors on the penetration depth of the eddy current coil is not considered in the standard permeability calculation formula. These factors include the outside diameter of the coil,the height,the number of turns and the lift-off. ANSYS finite element analysis software was used to simulate the eddy current signal,and the simulation results were verified by experiments.The results show that all the factors have influence on the density of eddy current.The excitation frequency and outside diameter have significant influence on the penetration depth,while other factors have less influence.

关 键 词：涡流线圈 渗透深度 涡流检测 有限元分析 

分 类 号：TB972[一般工业技术—计量学]