三线圈式电磁磨粒传感器结构优化及信号增强  

Structure Optimization and Signal Enhancement of Three Coil Electromagnetic Abrasive Particle Sensor

作　　者：王跃伟 庞新宇 秦国军 关重阳[1,2] 呼守信 吕凯波 张雪梅 WANG Yuewei;PANG Xinyu;QIN Guojun;GUAN Chongyang;HU Shouxin;LYU Kaibo;ZHANG Xuemei(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanri Provincial Key Laboratory of Fully Mechanized Coal Mining Equipment,Taiyuan University of Technology,Taiyuan 030024,China;Hunan Zhirin Technology Development Co.,Ltd.,Changsha 410000,China;School of Information and Mechatronic Engineering,Hunan University of Foreign Economics,Changsha 410000,China;China Coal Science and Industry Group Taiyuan Research Institute Co.,Ltd.,Taiyuan 030024,China)

机构地区：[1]太原理工大学机械与运载工程学院,太原030024 [2]太原理工大学煤矿综采装备山西省重点实验室,太原030024 [3]湖南挚新科技发展有限公司,长沙410000 [4]湖南涉外经济学院信息与机电工程学院,长沙410000 [5]中国煤炭科工集团太原研究院有限公司,太原030024

出　　处：《太原理工大学学报》2024年第4期629-639,共11页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(52175108);山西省重点研发项目(202102010101009,202102010101006);湖南省教育厅科研重点项目(22A0649)。

摘　　要：【目的】为提高电磁磨粒传感器对微小颗粒的检测精度,对一激两感三线圈式电磁磨粒传感器感应信号的影响因素进行了研究,提出结构优化和信号增强的措施。【方法】首先建立了一激两感三线圈式电磁磨粒传感器的数学模型并对该模型进行了仿真和验证;其次对不同大小的磨粒和磨粒的不同径向位置进行了实验研究,分别得出磨粒尺寸和径向位置与输出信号的关系;最后通过有限元分析研究了不同结构参数下输出信号的变化规律,提出传感器的参数优化方案并进行验证,同时设计了传感器的屏蔽结构。【结果】结果表明,优化后的传感器输出信号的强度比优化前提高了13.75倍,可以检测到的铁磁磨粒最小直径为82.26μm,非铁磁磨粒最小直径为294.38μm.研究结果有助于提高电磁磨粒传感器对微小磨粒的检测精度。【Purposes】 In order to improve the detection accuracy of electromagnetic abrasive particles on small particles, the influencing factors of the induced signal of one-excitation, two-inductive three-coil electromagnetic abrasive sensor are studied, and structural optimization and signal enhancement measures are proposed. 【Methods】 First, the mathematical model of one-excitation, two-inductance three-coil electromagnetic abrasive sensor is established, and the model is simulated, and verified. Second, different radial positions and different sizes of abrasive grains are experimentally studied, and the relationship between the size and radial position of abrasive grains and the output signal is explored. Finally, the change law of output signal under different structural parameters is studied through finite element analysis, the parameter optimization scheme of the sensor is proposed and verified, and the shielding structure of the sensor is designed. 【Findings】 The results show that the strength of the output signal of the optimized sensor is increased by 13.75 times compared with that of the optimization period, and the minimum diameter of the ferromagnetic abrasive particles that can be detected is 82.26 μm, and the minimum diameter of non-ferromagnetic abrasive particles is 294.38 μm. The results are helpful to improve the detection accuracy on electromagnetic abrasive particles of the electromagnetic abrasive sensor.

关 键 词：电磁磨粒传感器 微小磨粒 参数优化 屏蔽结构 

分 类 号：TH117[机械工程—机械设计及理论]