非均匀磁场扫描的磁滞曲线测量方法的研究

Measurement Study of Non-uniformity Scanning Magnetic Field for Hysteresis of Magnetic Materials

对于一类软磁材料 ,用振动样品磁强计测量其基本磁性参数时 ,因饱和时的外加磁场远大于软磁材料饱和时的矫顽力 ,常常会因测量饱和磁化强度 MS而不能保证测量矫顽力 HC的一定精度。文章提出采用非均匀磁场扫描的方法实现饱和时的饱和磁化强度 MS和矫顽力

While some basic magnetic parameters for a sort of soft materials are detected by means of vibration sample magnetometer,it is impossible that high resolution of the coercivity under the condition of saturation magnetization is attained because to the state of saturation magnetization for soft magnetic materials the applied magnetic field H max their coercivity H C.Hence,this paper presents a high resolution measurement of the coercivity and saturation magnetization using a method of non uniformity scanning magnetic field.