远场涡流无损检测技术在管道中的应用

Application of remote field eddy current nondestructive testing technology in pipeline

远场涡流检测技术在国外发达国家中已充分应用于现场,且收效显著。国内还处于研究认识阶段。本文针对远场涡流检测技术的理论作了分析研究,并在实验室也做了相关的实验,实验结果表明,检测信号的幅值和相位可以反映套管的壁厚信息,检测信号的幅值和相位随管壁厚度成线性关系。

the remote field eddy current testing technology in foreign developed country has been well applied in the scene, and has notable effect. China is still in the research stage of cognition. This article in view of the remote field ed- dy currant testing technology theory are analyzed, and in the laboratory also made relevant experiments, the experimen- tal results show that, detection of signal amplitude and phase can reflect the casing wall thickness information, detection of signal amplitude and phase as a function of the tube wall thickness in a linear relationship.