Online Magnetic Flux Leakage Detection System for Sucker Rod Defects Based on LabVIEW Programming

• 作者: Ou Zhang Xueye Wei
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: FLUX LEAKAGE testing real-time detection SUCKER ROD LabVIEW ACQUISITION and processing
• 年，卷（期）: 2019,（2）
• 页码范围: 529-544
• 页数: 16页
• 分类号: TP3

摘要

Aiming at the detection of the sucker rod defects,a real-time detection system is designed using the non-destructive testing technology of magnetic flux leakage(MFL).An MFL measurement system consists of many parts,and this study focuses on the signal acquisition and processing system.First of all,this paper introduces the hardware part of the acquisition system in detail,including the selection of the Hall-effect sensor,the design of the signal conditioning circuit,and the working process of the single chip computer(SCM)control serial port.Based on LabVIEW,a graphical programming software,the software part of the acquisition system is written,including serial port parameter configuration,detection signal recognition,original signal filtering,real-time display,data storage and playback.Finally,an experimental platform for the MFL detection is set up,and the MFL measurement is carried out on the transverse and longitudinal defects of the sucker rod surface.The experimental result shows that the designed acquisition and processing system has good detection performance,simple design and high flexibility.