摘要
针对脉冲法在测量铁磁性材料应力状态时,磁滞回线存在奇异点的问题,提出了一种基于样条函数的磁滞回线光顺处理的方法。首先,通过分析脉冲法测量磁特性装置的组成和原理,建立了磁滞回线光顺处理的样条插值理论模型;然后,以LabVIEW软件为平台,编写了光顺处理程序模块,并嵌入了上位机后台程序;最后,对不同铁磁性材料的工件进行了对比试验,根据采集的数据,在上位机中绘制了相应的磁滞回线。试验及分析结果表明,经过样条插值处理后,该研发装置获得的磁滞回线可以在正、反向放电间隔区平滑过渡,实现了磁滞回线的光顺处理,从而为进一步研究铁磁性材料的磁特性参数奠定基础。
Aiming at the problem of the hysteresis loop appearing singularity when stress status of ferromagnetic materials is measured by using pulse method,a fairing method of magnetic hysteresis loop based on spline function was proposed. Firstly,by analyzing the principle and method of pulse measurement of magnetic properties,a hysteresis loop smoothing spline interpolation theory model was established.Then,the smoothing processing program module was writen in LabVIEW and added to the computer in the whole daemon. Finally,different ferromagnetic workpieces were tested and the corresponding hysteresis loop was acquired. The results indicate that the smooth transition is realized of the hysteresis loop in the discharge area.
出处
《机电工程》
CAS
2016年第9期1062-1065,1075,共5页
Journal of Mechanical & Electrical Engineering
基金
国家质检总局公益基金项目(201410026)
