非参数估计法环状静电传感器灵敏度仿真研究  

Simulation study of sensitivity of ring-shaped electrostatic sensor based on nonparametric estimation method

作　　者：钱宇加 阚哲 刘晓 罗琳 QIAN Yujia;KAN Zhe;LIU Xiao;LUO Lin(School of Information and Control Engineering,Liaoning University of Petrochemical Technology,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001

出　　处：《传感器与微系统》2021年第9期37-40,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61703191);辽宁省自然科学基金资助项目(201602468)。

摘　　要：气力输送广泛存在于化工过程,针对气固两相流参数测量展开一系列研究。通过引入统计学中非参数核估计方法,结合拟合优度和仿真数据样本最终拟合出数学模型,模型满足高斯分布,理论上给出了静电信号满足高斯分布的猜想。对静电传感器测量系统进行改造使得信号输出线可以加长2~3 m,为后续设备的测量提供了便利。采用Maxwell仿真软件进行仿真,得到不同的传感器参数对空间灵敏度特性的影响。最后在实验设备上进行了实验,并证实了文中得到的结论。Pneumatic conveying is widely used in chemical process,and a series of researches are carried out to measure gas-solid two-phase flow parameters.By introducing non-parametric kernel estimation method of statistics,combining the goodness of fitting and simulation data samples,the mathematical model which satisfies the Gaussian distribution is finally fitted.And the electrostatic signal satisfying the Gaussian distribution is given in the theory.The electrostatic sensor measurement system is reformed so that the signal output line can be extended to 2~3 m,which provides convenience for the measurement of subsequent equipment.Maxwell simulation software is used to obtain the effects of different sensor parameters on spatial sensitivity characteristics.Finally,experiments are carried out on experimental equipment,and the conclusions obtained in the article are confirmed.

关 键 词：气固两相流 静电传感器 非参数估计 数学模型 灵敏度 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]