摘要
采用二维涡流探伤模型，研究了涡流传感器的结构参数对探伤灵敏度的影响，并将双频涡流探伤技术用于坯料表面缺陷检测，结果表明，缺陷深度增加所引起的探头阻抗变化使其相角发生变化。
Two-dimension eddy current inspection model is taken for researching the effect of the eddy current transducer structure parameter upon the inspection sensitivity. Dual-frequency eddy current inspection is applied to the inspection of slab surface defects. The results of experiment prove that the change of sensor impedance due to the change of crack depth causes the phase angle of impedance to change.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1995年第4期361-364,共4页
Journal of University of Science and Technology Beijing
关键词
传感器
连铸坯
涡流检验
无损检验
探伤
transducer, continuously casting slabs, eddy current test, nondestructive test/non-destructive flaw detection
