钢板超声自动检测技术中PET与EMAT的对比研究

文章简要介绍PET(压电式超声)和EMAT(电磁超声)两种较主流的钢板超声自动检测技术,从两者的运用原理、适用范围、技术参数等方面进行分析对比,从而找出合适的检测方法。

This paper briefly introduces two mainstream ultrasonic automatic testing techniques for steel plate, PET(piezoelectric transducer) and EMAT(electromagnetic acoustic transducer), and analyzes and compares them from the aspects of application principle, as well as the scope of application and technical parameters, so as to find out the appropriate testing method.