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随着现代化工业的发展，人们对质量的意识不断加强，尤其对某些关系到运行安全的机械零部件必须进行100％检测，依靠传统的检测方法已经不能满足这种要求。因此，研制、开发用于严格控制产品质量的高效NDT技术产品已迫在眉睫。由于涡流检测仪器具有快速、灵敏、无接触、易耦合
With the development of modern industry, people are constantly raising awareness of quality. In particular, some mechanical parts and components related to operational safety must be tested 100%, which can not be met by traditional inspection methods. Therefore, it is imminent to develop and develop efficient NDT technology products for strictly controlling product quality. Because eddy current testing equipment has a fast, sensitive, non-contact, easy to couple