摘要
电感检测是对润滑油中金属磨粒进行在线检测的重要手段,但平面电感线圈不同位置的磁场强度不同,进而影响电感检测结果。为了探究平面线圈中磨粒流经位置对电感检测结果的影响,本文模拟研究了平面电感线圈周围空间的磁场分布,并搭建实验系统研究了磨粒流经平面线圈不同位置时的检测结果。模拟和实验结果显示,当在平面线圈水平平面内改变磨粒与线圈的相对位置时,随磨粒远离线圈中心线,电感检测幅值快速降低;但在线圈外径附近时,电感幅值降低不明显。当在垂直平面内改变磨粒相对于平面线圈的位置时,随着磨粒高度增加,检测信号幅值减小。
Inductance detection is an important means for on-line detection of wear debris in lubricating oil. The magnetic field intensity is different at different positions of planar coil, which affects the results of inductance detection. In order to explore the influence of the position of wear debris flowing through the planar coil on inductance detection, the magnetic field distribution of the planar inductance coil is simulated. An experimental system is also established to study the detection results of wear debris flowing through different positions of the planar coil. The simulation and experimental results show that the farther the wear debris is from the center of the coil in the horizontal radial direction, the smaller the amplitude of inductance detection and the faster the decline rate. However, when the distance is a certain distance, the speed of inductance amplitude reduction becomes slower. When the vertical detection position of wear debris relative to the planar coil is changed, the detection signal amplitude decreases with the increase of relative height.
作者
安熠明
AN Yi-ming(China Waterborne Transport Research Institute,Beijing 100088)
出处
《新型工业化》
2019年第9期81-86,共6页
The Journal of New Industrialization
关键词
平面线圈
电感检测
相对位置
磨粒
Planar coil
Inductance detection
Relative position
Wear debris
