新型液压阀用LVDT传感器优化设计  

Optimization Design of Linear Variable Differential Transformer Design for New Hydraulic Valve

作　　者：曹军成 许益民[1] CAO Jun-cheng;XU Yi-min(Laboratory of Fluid Control,College of Machinery & Automation, Wuhan University of Science & Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学机械自动化学院流体控制实验室,湖北武汉430081

出　　处：《仪表技术与传感器》2019年第1期1-4,8,共5页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61105086)

摘　　要：根据液压阀用LVDT性能要求,新型LVDT初级线圈采用两段式分布设计方法,能均匀轴向磁场分布。利用gamultiobj函数的遗传算法对LVDT多结构参数同步优化处理,运用数值仿真软件编写优化程序,求解最优结构参数。设计一种智能LVDT性能测试试验台,以提高LVDT测试精度及效率。通过优化前后仿真结果与实验结果的对比分析,表明初级线圈采用两段式能提高LVDT的线性度与灵敏度。According to the requirements of the LVDT performance for hydraulic valve,the new LVDT primary coil adopted the two-stage distribution design method,which can evenly distribute the axial magnetic field.The genetic algorithm of gamultiobj function was used to synchronously optimize LVDT multi-structure parameters,and numerical simulation software was used to write the optimization program to solve the optimal structure parameters.Smart testing bench was designed for the performance index of LVDT to improve testing accuracy and efficiency.The simulation results before and after optimization were compared with the experimental results,and the results show that the two-stage primary coil can improve the linearity and sensitivity of LVDT.

关 键 词：LVDT 遗传算法 非线性补偿 灵敏度 液压系统 优化 

分 类 号：TH864[机械工程—仪器科学与技术]