Metal magnetic memory(MMM)testing is a green,pollution-free,life cycle non-destructive testing technology that can detect early stress concentration,hidden damage and macroscopic defects.After more than 20 years of development,numerous research results have been achieved and applied in important fields such as pressure vessels,oil pipelines,railway bridges,energy and power,aerospace.For the hot and difficult issues of MMM testing technology in recent years,starting with the theoretical basis and key technologies in engineering applications,the current research status of MMM testing technology in the aspects of mechanism,signal denoising and feature extraction,and the application of machine learning in detection and evaluation,etc.were summarized,and the key and difficult issues that need to be solved urgently by MMM testing technology and the direction of future development were discussed.
关键词
磁记忆机理/信号降噪/特征提取/定量评价/机器学习
Key words
magnetic memory mechanism/signal denoising/feature extraction/quantitative evaluation/machine learning
维普
万方数据