压力容器2026，Vol.43Issue(2)：79-86,8.DOI:10.3969/j.issn.1001-4837.2026.02.008
铁磁性金属近表面缺陷的脉冲电磁铁式电磁超声传感器设计及检测方法
Design of a pulsed electromagnet-type electromagnetic acoustic transducer and detection method for near-surface defects in ferromagnetic metals
摘要
Abstract
To overcome the problems of strong magnetic force interference,low transduction efficiency,and poor detection performance existing in current electromagnetic acoustic surface wave transducers when detecting structural defects in ferromagnetic metals,a novel electromagnetic acoustic surface wave transducer based on a U-type pulsed electromagnet with high conversion efficiency and strong adaptability,as well as a corresponding detection method,were designed and developed.Finite element numerical simulation was used to optimize the transducer configuration and verify the feasibility of the detection method.A pulsed electromagnet-type electromagnetic acoustic testing system was established.The effects of pulse number,excitation voltage,and defect size on the transducer performance were analyzed,and the performance differences between this transducer and existing electromagnetic acoustic transducers were compared.The results show that the pulsed electromagnet-type transducer has significantly better near-surface defect detection capability in DH36 low-alloy carbon steel compared to existing electromagnetic acoustic transducers.This study provides a new method for addressing near-surface defects in ferromagnetic metals.关键词
铁磁性金属/电磁超声传感器/表面波/脉冲电磁铁/缺陷检测Key words
ferromagnetic metal/electromagnetic acoustic transducer/surface wave/pulsed electromagnet/defect detection分类
机械制造引用本文复制引用
霍鹏,马国栋,田崇顺,解晨曦,裴翠祥..铁磁性金属近表面缺陷的脉冲电磁铁式电磁超声传感器设计及检测方法[J].压力容器,2026,43(2):79-86,8.基金项目
陕西省重点研发计划项目"面向新能源场站材料污秽及腐蚀状态的原位检测技术及装置"(2024PT-ZCK-48) （2024PT-ZCK-48）
