可视化无损检测技术研究进展

随着工业产品质量及服役安全验证要求的不断提升,常规无损检测已无法满足实时、在线、快速作业的需要,可视化无损检测技术应运而生。将可视化技术应用于产品质量检测与评估,具有清晰、直观、精准等优点,对提高产品检测效率和精度,实现大规模工业化、信息化、智能化检测具有重要意义。主要从超声无损检测及成像技术、红外热波无损检测及其图像序列处理技术、电磁无损检测及其信号采集处理技术、层析成像技术与三维重构方法,以及可视化无损自动检测技术等方面,介绍了国内外可视化无损检测技术的研究进展,分析了各类检测技术的适用范围和特点,并对其发展方向和应用前景进行了展望。

Research Progress on Visualized Nondestructive Testing Technology

With the increasing demand for industrial product quality and safety verification, conventional nondestructive testing (NDT) technology can hardly fulfil special requirements such as real-time monitoring, on-line inspection and rapid detection. That brings the emergence of visualized NDT. It is clearer, more intuitive and accurate to apply visualized technology to the detecting and estimating of product quality. That is much significant for higher detecting efficiency and accuracy, as well as for large-scale industrialization, informationization and intelligentization. This paper summarizes the research progress on visualization technology applied in NDT. First, the following aspects:ultrasonic testing, infrared thermal wave testing, electronic and magnetic testing, computerized tomography and some automated NDT techniques as well as their visualization methods are introduced. Then, the range of application, merits and demerits of each technology are analyzed. Finally, the improvement and development prospect of visua-lization technology used in NDT is forecasted.