基于涡流法的碳纤维复合材料电导率非接触测量  

Noncontact Measurement of Electrical Conductivity of Carbon Fiber Reinforced Polymer Based on Eddy Current Method

作　　者：张梦茹 程军[2,3] 汪步云[2,3] 许德章[2,3] ZHANG Meng-ru;CHENG Jun;WANG Bu-yun;XU De-zhang(School of Mechanical and Automotive Engineering,Anhui Polytechnic University,Wuhu,241000,Anhui;School of Artificial Intelligence,Anhui Polytechnic University,Wuhu,241007,Anhui;Anhui Research Center for Generic Technologies in Robot Industry,Anhui Polytechnic University,Wuhu,241007,Anhui)

机构地区：[1]安徽工程大学机械与汽车工程学院,安徽芜湖241000 [2]安徽工程大学人工智能学院,安徽芜湖241007 [3]安徽工程大学安徽省机器人产业共性技术研究中心,安徽芜湖241007

出　　处：《蚌埠学院学报》2025年第2期31-38,共8页Journal of Bengbu University

基　　金：安徽省高校自然科学研究项目(2023AH050926);安徽省高校协同创新项目(GXXT-2023-076);安徽未来技术研究院企业合作项目(2023qyhz35)。

摘　　要：提出了一种基于电磁涡流和激励-接收型线圈探头的电导率迭代优化反演方法,以探索实现碳纤维复合材料各向异性电导率的非接触测量。基于毕奥-萨伐尔定律,建立了电导率与探头电压的关系,并利用有限元仿真计算了探头电压随不同方向电导率的变化,通过与两电极法电导率测量值以及探头电压实验值对比验证了仿真结果与实验数据的可靠性。通过三维曲面拟合,得出了电压与各向异性电导率的函数关系,并通过遗传算法迭代优化,实现了碳纤维复合材料电导率的反演。研究结果显示,该方法为CFRP材料电学特性分析和无损检测提供了新途径。A conductivity iterative optimization inversion method based on electromagnetic eddy current and transmitter-receiver(T-R)coil probe was proposed to achieve non-contact measurement of anisotropic conductivity of carbon fibe-reinforced polymer(CFRP)composites.Based on the Biot-Savart law,the relationship between the conductivity and the probe voltage was established,and the variation of probe voltage with conductivity in different directions was calculated using finite element simulation.The validity of the simulation results and experimental data was verified by comparing with the conductivity measurement values of the two electrode method and the experimental values of probe voltage.The functional relationship between voltage and anisotropic conductivity was obtained through three-dimensional surface fitting,and the inversion of conductivity of CFRP materials is achieved through iterative optimization using genetic algorithm.This method can provide a new approach for analyzing the electrical properties and non-destructive testing of CFRP materials.

关 键 词：涡流检测 碳纤维复合材料 电导率反演 三维曲面拟合 遗传算法 

分 类 号：TB332[一般工业技术—材料科学与工程]