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我国NDT(无损检测)的发展至今已有30余年。作为工业生产中必不可少的有效工具,NDT借助超声波、射线、声发射、电磁等技术不断发展衍伸,推陈出新,如超声波衍射时差法、超声相控阵、电磁超声、空气耦合超声、数字射线、脉冲涡流、可变阵列涡流等技术的出现与广泛应用,为我国企业生产的顺利进行提供了强有力的保障。本期专题介绍了共振检测、超声涡流联合探伤等技术应用,以飨读者。
The development of NDT (non-destructive testing) in our country has been more than 30 years. As an indispensable and effective tool in industrial production, NDT continues to evolve and develop new technologies such as ultrasonic time-of-flight, ultrasonic phased array, electromagnetic ultrasound, air-coupled ultrasound, digital radiography , Pulse eddy current, variable array eddy current technology and the emergence of a wide range of applications for the smooth progress of China’s enterprises to provide a strong guarantee. This issue introduces the resonance detection, ultrasonic eddy current testing and other technical applications to readers.