Optimization of Eddy Current Sensor Parameters for Detection of Circumferential Crack in Small-Diameter Tube
-
摘要: 为解决传统探头检测小径管周向缺陷时,易出现漏检或耗时长的缺点,设计了一款针对此类缺陷的涡流探头。通过有限元仿真和试验的方法对探头的几何参数进行优化,分析了磁性材料厚度、宽度,激励线圈线径以及匝数对小径管周向缺陷检测的影响,为优化探头检测性能提供参考。制作新型探头与传统涡流探头对标准缺陷进行检测试验,发现在检测周向缺陷时,制作的探头比常规探头的检测能力更强。Abstract: In order to overcome the shortcomings such as missing detection or long time consuming in the detection of the circumferential defects of the small-diameter tube by traditional probes, an eddy current probe for such defects was designed. The finite element simulation and experimental methods were used to optimize the geometric parameters of the probe. The influences of thickness, width of the magnetic material, diameter of the excitation coil, and number of turns on the detection of the circumferential defect of the small diameter tube were analyzed, which provided references for optimizing the detection performance of the probe. Compared the detection of standard flaws between the new type of probe and a conventional eddy current probe, it was found that the detection of circumferential defects by the former one is more powerful than that by the latter.
-
-
[1] YOUNG J K, SEUNG S L. Eddy current probes of inclined coils for increased detectability of circumferential cracks in tubing[J]. NDT&E International, 2012,49:77-82.
[2] XIN Junjun. Design and analysis of rotating field eddy current probe for tube inspection[D].Michigan:Michigan State University,2014.
[3] YE Chaofeng. Design and validation of novel electrically rotating eddy current probe[D].Michigan:Michigan State University,2016.
[4] MACHADO M A, ROSADO L.Novel eddy current probe for pipes:application in austenitic round-in-aquare profiles of ITER[J]. NDT&E International, 2017,87:111-118.
[5] 于亚婷,杜平安.线圈形状及几何参数对电涡流传感器性能的影响[J].仪器仪表学报,2007(6):1045-1050. [6] 郭丽霞.脉冲涡流流检测中信号采集及处理方法[D].成都:电子科技大学,2016. [7] 周德强,闫向阳,尤华丽,等.脉冲涡流矩形传感器参数的仿真优化与实验[J].传感器与微系统,2013(5):13-16. [8] 曹爱松,付跃文,杨浩.小径管周向裂纹脉冲涡流检测仿真与试验研究[J].失效分析与预防,2017(12):71-77.
计量
- 文章访问数: 0
- HTML全文浏览量: 0
- PDF下载量: 1