摘要
准确测定缺陷的尺寸 ,对带缺陷结构的寿命评估具有十分重要的意义。交流磁场测量法是近年来兴起的一种评价表面缺陷的无损检测方法 ,它通过测量工件表面感应磁场的变化来进行材料中缺陷的定性定量 ,具有非接触的优点 ,广泛应用于结构的在役检测。
Precise sizing of flaws holds a very important position in life evaluation of a structure with flaws. Alternating current field measurement developed recently is an NDT method applied to surface flaw evaluation. It is widely used in on line inspection of structures for its non contacting method, in which flaw identification and sizing are accomplished by measuring the variance of induced magnetic field in a workpiece.
出处
《无损检测》
2001年第3期96-99,共4页
Nondestructive Testing
基金
国家自然科学基金!项目 (5 0 0 75 0 0 4)
北京市自然科学基金!资助项目 (2 96 2 0 0 4)
关键词
无损检测
磁性检测
交变磁场测量
表面缺陷
定性分析
定量分析
Magnetic testing
Alternating current field measurement
Surface flaw
Qualitative analysis
Quantitative analysis
