铸造技术2024，Vol.45Issue(4)：369-375,7.DOI:10.16410/j.issn1000-8365.2024.3274
基于LabVIEW的远场涡流检测扫查系统研究
Research on a Far-field Eddy Current Detection Sweep System Based on LabVIEW
张一冲 1路浩 1邢立伟 1张洁1
作者信息
- 1. 西安石油大学材料科学与工程学院,陕西西安 710065
- 折叠
摘要
Abstract
For crack defects near the surface of metal components,based on the far-field eddy current detection method,a far-field eddy current detection sweeping system that includes a motion sweeping platform,signal excitation,data acquisition and other modules is established.The motion sweep platform uses PLC to control the stepping motor to drive the three-dimensional sweep frame movement.A LabVIEW data acquisition program was written to control the NI acquisition card to collect the detection signal,and MX components were used to communicate between the LabVIEW software and PLC so that LabVIEW could access the PLC's registers to read the three-dimensional sweep frame displacement information of each axis.Automated detection of defects was achieved by combining software and hardware.Two different types of defects were designed.The experimental results show that with decreasing defect depth and increasing defect width,the obtained defect signal also increases,and the error between the actual defect position and the detected defect position is 0.001 mm;at the same time,the method is able to detect rectangular defects with a maximum depth of 5 mm and width of 0.2 mm,which proves the feasibility of the method.关键词
远场涡流/LabVIEW软件/运动检测/缺陷埋深Key words
far-field eddy current/LabVIEW software/motion detection/buried depth of defect分类
矿业与冶金引用本文复制引用
张一冲,路浩,邢立伟,张洁..基于LabVIEW的远场涡流检测扫查系统研究[J].铸造技术,2024,45(4):369-375,7.
