机构地区: 北方交通大学机械与电子控制工程学院
出 处: 《无损检测》 2000年第6期249-251,共3页
摘 要: 研究了铁磁材料的晶粒度与巴克豪森噪声的强度和波形特征参数之间的关系。利用波形的半高宽占空比作为测量参数 ,能良好地反映材料的晶粒大小。结果表明可以利用巴克豪森噪声来测量铁磁材料的晶粒大小。 The relationships between the grain size of ferromagnetic material and the strength and waveform characteristic parameters of Barkhausen noise (BN) were studied. The grain size could be well shown by half hight ratio. BN signal testing were considered to be a better way for grain size.