漏洩磁束測定によって表面近傍の欠陥を検出するための方法および装置
- 专利权人:
- 发明人:
- 申请号：
- JP20110504340
- 公开号：
- JP5758798(B2)
- 申请日:
- 2009.03.25
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
In a method for detecting near-surface defects in a test sample consisting at least partly of a ferromagnetic material, a test volume of the test sample is magnetized and scanned for the detection of magnetic leakage fields caused by defects. The test volume is magnetized by means of a magnetic constant field and simultaneously by means of a magnetic alternating field superposed on the constant field. Leakage field test devices suitable for carrying out the method are described.
- 来源网站：
- 中国工程科技知识中心
