基于分量磁通的表面缺陷无损检测技术研究

Nondestructive Testing Technique for Surface Defects with Component of Magnetic Flux

摘要: 应用电磁场理论和有限元数值模拟技术，研制出了一种基于交变磁场分量测量技术的缺陷检出传感器和测量系统。通过扫查测量对象表面，就能够快速可靠地确定是否存在缺陷及定量缺陷大小。测量系统在实际工程上进行了应用尝试。

Abstract: A new kind of nondestructive test sensor and measuring system were developed based on the electromagnetic coupling numerical analysis technique, skin effect, and component magnetic flux. Through inspection by means of scanning on the surface of the object, defects and their sizes were found out by measuring the component of magnetic flux density. Some application examples in engineering were also introduced.