MAGNEPROBE - A PORTABLE SYSTEM FOR NONDESTRUCTIVE TESTING OF FERROMAGNETIC MATERIALS

被引：11

作者：

PARAKKA, A

JILES, DC

机构：

[1] Ames Laboratory, Iowa State University, Ames

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷

关键词：

D O I：

10.1016/0304-8853(94)00857-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic Barkhausen effect emissions have been demonstrated to be very sensitive in the detection of surface stress patterns and microstructural changes. A portable computer controlled instrumentation system to detect and analyze Barkhausen emissions from different depths in the materials has been developed. The software for the system features a number of processing techniques, including pulse height analysis, RMS averaging and Fourier transforms for characterizing the detected signal.

引用

页码：1841 / 1842

页数：2

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