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一、前言电磁探伤包括漏磁探伤和涡流探伤二个方面,1967年以后各国大量研究涡流探伤的自动化及研究计算机等技术在涡流探伤中的应用。在漏磁探伤方面目前国内外广泛使用着磁粉和荧光磁粉探伤来检查铁磁性材料的表面缺陷,由于磁粉探伤大都是目视检查,因此,工作效率低,劳动强度大,检查的可靠性取决于
I. Foreword Electromagnetic detection includes two aspects of magnetic flux leakage testing and eddy current testing. Since 1967, many countries have studied the application of eddy current testing automation and computer technology in eddy current testing. In the field of magnetic flux leakage testing, magnetic and fluorescent magnetic particle inspection is widely used at home and abroad to inspect the surface defects of ferromagnetic materials. Because magnetic particle inspection is mostly visual inspection, the work efficiency is low and the labor intensity is large. The reliability of inspection depends on