field leakage meaning in English

场漏

The alternating current in the alternating current magnetic field leakage testing ( ac - mfl ) is one of the magnetizing manners . the sensitivity is very high to the defect of surface and the near to the surface of the workpiece . it is one of the developing directions of nondestructive testing ( ndt ) domain
交变漏磁检测技术中的交变是漏磁检测技术中的一种磁化方式,该技术对工件表面及近表面缺陷具有较高的检测灵敏度,是无损检测领域未来主要发展方向之一。
Based on that penetration depth of eddy current is theoretically different for different operationalfrequency , the flaw depth quantitive measurement method based on the characteristicalfrequency was expounded . to find the best testing model and position , it analysed and discussedthe factors which effected measurement . the mathematic relationship between the specialfrequencyand flaw depth was established to realize the accureate measurement of flaw depth . it primarily researched the technology of alternating current magnetic field leakage testing ( ac - mfl ) in our country
在利用频率扫描技术的基础上,提出了基于拐点频率的涡流检测缺陷深度测量方法,对影响测量的多种因素进行了分析和实验研究,得到了最佳的测试位置和测试方法,建立了拐点频率和缺陷深度的定量关系,为深度的测量提供了新的途径。