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电磁超声检测是一种新的无损检测技术,激磁场是影响电磁超声检测灵敏度的重要环节。文章介绍了利用有限元技术计算电磁超声激磁场的方法,分析和探讨了电磁超声检测中经常用到的几种激磁场的分布和特点。
Electromagnetic ultrasonic testing is a new non-destructive testing technology, the excitation field is an important part of the sensitivity of electromagnetic ultrasonic testing. In this paper, the method of calculating electromagnetic ultrasonic excitation field by using finite element method is introduced, and the distribution and characteristics of several kinds of excitation field commonly used in electromagnetic ultrasonic testing are analyzed and discussed.