磁聚焦式扭矩传感器激励线圈控制策略研究  

Research on Control Strategy of Excitation Coil for Magnetic Focused Torque Sensor

作　　者：王宪彬[1] 孙士铭 李志鹏[2] 董晟 乔明泽 WANG Xianbin;SUN Shiming;LI Zhipeng;DONG Sheng;QIAO Mingze(School of Civil Engineering and Transportation,Northeast Forestry University;College of Mechanical and Electrical Engineering,Northeast Forestry University)

机构地区：[1]东北林业大学土木与交通学院 [2]东北林业大学机电工程学院

出　　处：《仪表技术与传感器》2024年第5期19-25,共7页Instrument Technique and Sensor

基　　金：黑龙江省重点研发计划(JD22A014);国家自然科学基金资助项目(52175497)。

摘　　要：为测量旋转轴不同工况下的扭矩,提出了一种基于磁聚焦式扭矩传感器的激励线圈控制策略。该控制策略以控制传感器稳定输出幅值为2 mV电信号为目标,将感应电压数学模型和正交试验法相结合,对各个工况下的激励线圈控制策略进行设计,并利用MATLAB和COMSOL软件对各控制策略进行理论计算和有限元仿真验证。为模拟传感器在台架实验中得到的带噪声信号,对仿真得到的输出电信号添加高斯白噪声,利用MATLAB仿真软件对带噪声信号进行滤波优化。仿真结果表明:该控制策略能够使传感器在旋转轴的不同工况下,稳定输出幅值为2 mV的类正弦电压信号,验证了其可行性。To measure the torque of a rotating shaft under different working conditions,an excitation coil control strategy based on magnetic focusing torque sensor was proposed.This control strategy was based on controlling the stable output amplitude of the sensor to be 2 mV electrical signal.The induction voltage mathematical model and orthogonal experimental method were combined to design the excitation coil control strategies under various working conditions.Theoretical calculations and finite element simulation verification were conducted on each control strategy using MATLAB and COMSOL software.To simulate the noisy signal obtained by sensors in bench experiments,Gaussian white noise was added to the simulated output electrical signal,and MATLAB simulation software was used to filter and optimize the noisy signal.The simulation results show that this control strategy can enable the sensor to stably output a sinusoidal voltage signal with an amplitude of 2 mV under different working conditions of the rotating shaft,verifying its feasibility.

关 键 词：磁聚焦 扭矩传感器 激励线圈控制策略 圆环线圈 滤波优化 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]