电涡流位移传感器的仿真分析与验证  

Simulation Analysis and Verification of Eddy Current Displacement Sensor

作　　者：黄瑞 张晓亮 谢依文 Huang Rui;Zhang Xiaoliang;Xie Yiwen(Schaeffler Intelligent Driving Technology(Changsha)Co.,Ltd.,410000)

机构地区：[1]舍弗勒智能驾驶科技(长沙)有限公司,长沙410000

出　　处：《汽车文摘》2024年第11期18-23,共6页Automotive Digest

摘　　要：为了研究基于印制电路板(PCB)设计的电涡流位移传感器结构参数对性能的影响,应用Ansys仿真软件,建立电涡流位移传感器模型,分析传感器的线圈激励频率、线圈与被测目标间隙等参数对系统等效阻抗以及感应电压的影响。根据优化模型制作传感器样机,搭建试验平台,将仿真结果与实测结果进行误差分析,试验结果表明,经优化后的系统在全量程范围内的误差达到±1.5%,验证了模型的准确性和可行性,对电涡流位移传感器的开发应用提供了理论依据。In order to study the impact of structural parameters of eddy current displacement sensor based on Printed Circuit Board(PCB) design on performance,this paper utilizes Ansys simulation software to establish a model of the eddy current displacement sensor.It analyzes the influence of various parameters,including coil excitation frequency and the gap between the coil and the measured target,on the system's equivalent impedance and induced voltage.Based on the optimized model,a sensor prototype is constructed,and an experimental platform is established.An error analysis is conducted to compare the simulation results with the measured results.The experimental results show that the error of the optimized system reaches ±1.5% in the full range,thereby verifying the accuracy and feasibility of the model.This study provides a theoretical foundation for the development and application of the eddy current displacement sensors.

关 键 词：电涡流感应 位移测量 ANSYS 激励频率 PCB线圈 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]