永磁转子表磁检测偏心修正系统开发  

Development of Eccentricity Correction System for Rotor Surface Magnetic Detection

作　　者：王明 荣佑民 黄禹[1] 张勇 曾真寅 WANG Ming;RONG Youmin;HUANG Yu;ZHANG Yong;ZENG Zhenyin(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;College of Advanced Manufacturing Technology,Guangdong Mechanical and Electrical Polytechnic,Guangzhou 510000,China;不详)

机构地区：[1]华中科技大学机械科学与工程学院,武汉430074 [2]广东机电职业技术学院先进制造技术学院,广州510000 [3]麦格雷博(深圳)电子有限公司,深圳518000

出　　处：《组合机床与自动化加工技术》2023年第9期164-168,共5页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：针对永磁转子在表磁检测过程中存在的偏心的现象,基于分子环流模型,利用毕奥-萨伐尔定理对永磁体的空间磁场分布进行分析,开发了一种用于表磁偏心修正的系统。首先,介绍了该偏心修正方法的原理及工作流程,并针对数据处理模块引入了基于三次样条的双向插值;其次,设计搭建了修正系统平台;最后,通过采集对比实验数据,评估系统性能。实验表明,使用分子环流模型分析永磁转子空间磁场分布具有较强的适用性;同时,三次样条双向插值使测得的磁场数据与真实值更加贴合;最终呈现为经过该系统修正后的磁场数据与真实值的相对误差可控制在0.9%以内。Aiming at the eccentricity of permanent magnet rotor in surface magnetic detection,based on the molecular circulation model,the spatial magnetic field distribution of permanent magnet is analyzed by Biot-Savart theorem,and a system for surface magnetic eccentricity correction is developed.Firstly,the principle and workflow of the eccentricity correction method are introduced,and the bi-directional interpolation based on cubic spline is introduced for the data processing module.Then,the correction system platform is designed and built.Finally,the performance of the system is evaluated by collecting comparative experimental data.The experiment shows that the molecular circulation model has strong applicability to analyze the spatial magnetic field distribution of permanent magnet rotor.At the same time,cubic spline bidirectional interpolation makes the measured magnetic field data more consistent with the real value;Finally,the relative error between the corrected magnetic field data and the real value can be controlled within 0.9%.

关 键 词：永磁体 磁场分布 分子环流模型 偏心修正 样条插值 

分 类 号：TH161[机械工程—机械制造及自动化] TG502[金属学及工艺—金属切削加工及机床]