油液磨粒检测传感器线圈间距对输出信号的影响  

Influence of Coil Spacing on Output Signal of Oil Abrasive Particle Detection Sensor

作　　者：王立勇[1] 钟浩 李乐[1] 陈涛 张金乐[2] WANG Liyong;ZHONG Hao;LI Le;CHEN Tao;ZHANG Jinle(School of Electoral and Mechanical Engineering,Key Laboratory of Modern Measurement and Control Technology of Ministry of Education,Beijing Information Science and Technology University,Beijing 100192,China;China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]北京信息科技大学机电工程学院,现代测控技术教育部重点实验室,北京100192 [2]中国北方车辆研究所,北京100072

出　　处：《润滑与密封》2020年第6期69-75,共7页Lubrication Engineering

基　　金：国家自然科学青年基金项目(51605035);国家国防科技工业局基础科研项目(JCCPCX201705);装备预先研究项目(41402050202).

摘　　要：电感式磨粒传感器在机械设备润滑油液磨粒在线监测中具有独特优势,通过测量传感器输出的感应电压信号来获取油液中磨粒的大小、数量以及质量等信息,进而可实现设备磨损程度的判断。为了研究电感式三线圈传感器中相邻两线圈之间的距离对传感器输出感应信号的影响,基于差动式三线圈互感原理建立传感器三维模型;利用JMAG-Designer12.0软件对传感器检测铁磁磨粒的过程进行瞬态电磁仿真,分析线圈间距对传感器输出感应电动势的影响;通过制作传感器进行实验并行验证仿真结果的正确性。研究结果表明,当线圈间距小于2.5 mm时,感应电动势随间距的增加而增大,当线圈间距大于2.5 mm时,感应电动势随间距的增加而减小,线圈间距为2.5 mm时,感应电动势最大,传感器输出信号与理论正弦信号变化趋势接近一致,并且信号干扰最小、信号最为稳定。The inductive abrasive sensor has unique advantages in the application of on-line monitoring of lubricating oil and abrasive particles in mechanical equipment.The size,quantity and quality of abrasive particles in oil can be obtained by measuring the inductive voltage signal output by the sensor,and then the wear degree of equipment can be judged.In order to study the influence of the distance between two adjacent coils on the output induction signal of the inductive three coil sensor,a three-dimensional model of the sensor was established based on the principle of differential three coils mutual inductance.The transient electromagnetic simulation of the sensor s detection process of ferromagnetic abrasive particles was carried out by using the software JMAG-Designer 12.0.The influence of coil distance on the output induction electromotive force of the sensor was analyzed.The rationality of the simulation results was verified by making sensors for experiments.The results show that when the coil spacing is less than 2.5 mm,the electromotive force is increased with the increase of the coil spacing,when the coil spacing is greater than 2.5 mm,the electromotive force is decreased with the increase of the coil spacing,when the coil spacing is 2.5 mm,the sensor has the largest electromotive force,the change trend of the sensor output signal is close to that of the theoretical sinusoidal signal,and the signal interference is the smallest and the signal is most stable.

关 键 词：磨粒在线监测 传感器 线圈间距 电磁仿真 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]