摘要
介绍了漏磁无损探伤原理，分析了缺陷信号的特点，提出了获取漏磁场信号特征量的几种方法。旨在为设备的故障诊断、材料缺陷的检测提供科学理论依据和方法。
The principle of electromagnetic nondestructive testing is introduced.The characteristics of the signals for flaw states is analyzed.several methods to obtain the characteristic quantity of the magnetic leakage field signal is proposed.
关键词
漏磁场
无损探伤
特征量
信号提取
magnetic leakage
flaw detection
characteristic quantity
signal capture
