传感技术学报2025，Vol.38Issue(5)：923-928,6.DOI:10.3969/j.issn.1004-1699.2025.05.023
基于平面涡流传感器的角度裂纹检测研究
Research on Angle Crack Detection Based on Plane Eddy Current Sensors
摘要
Abstract
Under long-term high-pressure conditions,the aluminum alloy liner of the hydrogen cylinder is prone to cracks,leading to the failure of the hydrogen cylinder.The detection and evaluation of directional cracks on the complex surfaces of aluminum inner liners are challenges for eddy current testing.In order to improve the detection sensitivity of cracks in different orientations and restrain the noise during the testing process,a planar differential eddy current sensor is proposed.The detectability performances of the sensor at different excitation frequencies and the detection effect of the sensor on defects at different angles are analyzed through finite element simulation.An experimental system is established to verify the detection ability of sensors for crack in different orientations.The mapping relation-ship between detection signals and crack angles is established.Based on this,a quantitative evaluation method for defects is proposed.The simulation and experimental results show that the amplitude of the sensor monitoring signal decreases with the increase of crack an-gle,and cracks ranging from 15 ° to 75 ° can be effectively distinguished.关键词
涡流检测/柔性平面线圈/定量评估/无损检测Key words
eddy current testing/flexible planar coils/quantitative evaluation/nondestructive testing分类
计算机与自动化引用本文复制引用
陈玺名,郑凯,王敬东,马向东,王海涛..基于平面涡流传感器的角度裂纹检测研究[J].传感技术学报,2025,38(5):923-928,6.基金项目
南京航空航天大学研究生科研与实践创新计划项目(xcxjh20220333) （xcxjh20220333）
江苏省科技计划项目(BE2021084) （BE2021084）
