摘要
铁磁材料在交变磁场作用下产生的巴克豪森效应，随张应力的增加而增大，随压应力的增加而减小。本文提出的各种应力比值测量方法，是研究在线检测铁磁材料应力的新方法。
Barkhausen effect is produced in ferromagnetic materials under alternating magnet- ie field.Barkhausen noise increases with the increase of tension applied and decreases with the decreasing of pressure applied,this paper put forward several BN ratio methods are new testing method on field for internal stress of ferromagnetic materials.
关键词
铁磁材料
应力
测定
巴克豪森效应
terromagnetie materials
impulse noise
stress determination
