国外TOFD检测标准分析和比较

Evaluation and Comparison of Foreign TOFD Standards

摘要: 概述了超声波衍射时差法(TOFD)，对目前世界上主要的七个TOFD检测标准或规范进行了分析和比较，归纳了其中十二个方面的异同点。为我国TOFD检测标准的制订和TOFD技术的发展提供参考。

Abstract: Time of flight diffraction(TOFD) was summarized as a new nondestructive testing method. The present seven main TOFD standards in the world were evaluated and compared in twelve different portions. It may be helpful for establishing the chinese TOFD standard and accelerating the development of TOFD technique in our country.