| 油气管道变形涡流检测线圈探头的有限元仿真分析 |
| |
| 引用本文： | 黄松岭,徐琛,赵伟,许鹏.油气管道变形涡流检测线圈探头的有限元仿真分析[J].清华大学学报(自然科学版),2011(3):390-394. |
| |
| 作者姓名： | 黄松岭 徐琛 赵伟 许鹏 |
| |
| 作者单位： | 清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室; |
| |
| 基金项目： | 国家自然科学基金资助项目(10974115) |
| |
| 摘 要： | 涡流测距法是油气管道变形检测的一种有效手段,该方法要求电涡流线圈探头的量程较大,以便检测器能够顺利通过管道的变形区域。为提高线圈探头在较远距离上的检测分辨率,利用有限元方法,在保持线圈探头上激励功率不变的条件下,对线圈探头产生磁场的空间分布进行了仿真,并研究了线圈探头的内外径之差、厚度和等效半径对检测分辨率的影响。仿真结果表明:线圈探头的内外径之差增加,其检测分辨率增加;线圈探头的厚度增加,其检测分辨率增加;线圈探头的等效半径增加,其在较远距离下的检测分辨率先增加后减小。试验结果表明:在保持激励功率不变的条件下,增加线圈探头的内外径之差和厚度确实能够提高传感器的检测分辨率和灵敏度,与仿真结果一致。
|
| 关 键 词： | 涡流检测 有限元仿真 线圈设计 油气管道变形 |
Finite element simulation analyses of an eddy current testing coil for inspecting oil and gas pipeline deformation |
| |
| HUANG Songling,XU Chen,ZHAO Wei,XU Peng.Finite element simulation analyses of an eddy current testing coil for inspecting oil and gas pipeline deformation[J].Journal of Tsinghua University(Science and Technology),2011(3):390-394. |
| |
| Authors: | HUANG Songling XU Chen ZHAO Wei XU Peng |
| |
| Institution: | HUANG Songling,XU Chen,ZHAO Wei,XU Peng(State Key Laboratory of Control and Simulation of Power System and Generation Equipments,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China) |
| |
| Abstract: | Eddy current distance measurements are an effective deformation inspection method for oil and gas pipelines.The eddy current probe should have a large measurement range to enable the detector to smoothly pass through the deformed area of the pipeline.The finite element method was used to simulate the magnetic field distribution generated by a coil with a constant input power and to analyze the influences of the difference between the inner and outer coil diameters,the coil thickness and its equivalent radiu... |
| |
| Keywords: | eddy current testing finite element simulation coil design oil and gas pipeline deformation |
| 本文献已被 CNKI 等数据库收录！ |
|
