径向磁化电磁传感器设计和实验研究  

Design and Experimental Research of Radial Magnetization Electromagnetic Sensor

作　　者：唐波 郭必奔 陈伟 谭龙 TANG Bo;GUO Bi-ben;CHEN Wei;TAN Long(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou,Zhejiang 310018,China;Ningbo Water Meter(Group)Co.Ltd,Ningbo,Zhejiang 315033,China)

机构地区：[1]中国计量大学计量测试工程学院,浙江杭州310018 [2]宁波水表(集团)股份有限公司,浙江宁波315033

出　　处：《计量学报》2023年第10期1557-1563,共7页Acta Metrologica Sinica

基　　金：浙江省自然科学基金(LY21E050017);国家市场监督管理总局科技计划(2020MK189);宁波市重点研发计划(2022Z092)。

摘　　要：针对曳引钢带缺陷原位无损检测提出了一种径向磁化电磁传感器,实现曳引钢带缺陷的精准检测。基于电磁耦合原理和高导磁材料的聚磁特性,采用有限元分析方法建立径向磁化电磁传感器的等效模型,重点分析了聚磁铁芯宽度和线圈安匝数2个参数以及不同缺陷情况对径向磁化电磁传感器测量处磁感应强度大小的影响规律。最后,在数值模拟基础上研制出径向磁化电磁传感器,对其进行性能测试,进一步将其应用于曳引钢带缺陷检测中,结果表明:该系统能实现分辨力为0.5 mm的断股缺陷检测和断丝缺陷的定性检测,为曳引钢带缺陷检测提供一种可行方案。A radially magnetized electromagnetic sensor is proposed for the detection of the defects of the traction steel strip,which can realize the accurate detection of the defects of the traction steel strip in-situ nondestructive.Based on the electromagnetic coupling and the magnetic properties of high magnetic permeability materials,an equivalent model of the radially magnetized electromagnetic sensor is established by using the finite element analysis method.The laws of influence of the magnitude of the magnetic induction at the measurement location of the magnetized electromagnetic sensor.Finally,a radially magnetized electromagnetic sensor is prepared on the basis of numerical simulation and to measure its performance,and it is further applied to the defect detection of traction steel strips.The experimental results show that the system can realize the broken strand with a resolution of 0.5 mm.This demonstrated that a feasible solution is provided for the defect detection of traction steel strips.

关 键 词：计量学 电磁传感器 无损检测 曳引钢带 有限元分析 

分 类 号：TB972[一般工业技术—计量学]