基于磁各向异性方法的铁磁材料应力检测研究  

Research on Stress Detection of Ferromagnetic Materials Based on Magnetic Anisotropy Method

作　　者：李立新 邱忠超 高强[1] 韩智明 洪利 LI Li-xin;QIU Zhong-chao;GAO Qiang;HAN Zhi-ming;HONG Li(School of Electronic Science and Control Engineering,Institute of Disaster Prevention,Langfang 101601,China;School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]防灾科技学院电子科学与控制工程学院,河北廊坊101601 [2]北京理工大学机械与车辆学院,北京100081

出　　处：《仪表技术与传感器》2019年第9期118-121,共4页Instrument Technique and Sensor

基　　金：国家重点研发计划项目(2018YFC1503801);河北省高等学校科学技术研究项目(Z2019017);防灾科技学院教育研究与教学改革项目(JY2017B08,JY2019B02)

摘　　要：针对铁磁材料应力至今仍难以有效检测的问题,提出采用磁各向异性方法对铁磁材料应力进行检测。基于磁各向异性方法的检测原理,研制3种不同结构类型的锰锌铁氧体检测探头,搭建由励磁系统、信号采集系统、信号处理系统组成的磁各向异性检测系统,并在不同应力、频率与激励电压下对不同形状试件进行检测试验。结果表明,探头对于试件处于不同应力、激励频率与不同激励电压下均具有很好的检测效果,3种类型探头之间具有不同的检测现象和特征。In view of the problem that ferromagnetic material stress is still difficult to detect effectively,the magnetic anisotropy method was applied to detect the stress of ferromagnetic materials.Based on the detection principle of magnetic anisotropy method,different types of manganese-zinc ferrite detection probes were developed,and a magnetic anisotropy detection system consisting of excitation system,signal detection system and signal processing system was constructed.Tests were carried out on different shapes of test pieces under different stresses,frequencies and excitation voltage.The results show that the probe has good detection effect on the specimen under different stress,excitation frequency and different excitation voltages.Different types of probes have different detection phenomena and characteristics.

关 键 词：磁各向异性方法 铁磁材料 应力检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]