环形感应电极对静电传感器灵敏度的影响分析
Analysis of Influence of Ring Induction Electrode on Sensitivity of Electrostatic Sensor
翁杰琛 1王琦 1沈德魁2
作者信息
- 1. 中国计量大学计量测试工程学院
- 2. 东南大学能源与环境学院
- 折叠
摘要
为提高静电互相关流速测量传感器的灵敏度,研究了环形感应电极对传感器灵敏度的影响.通过COMSOL仿真软件建立传感器模型进行仿真,得到电极的宽度对静电传感器灵敏度分布特性的影响,基于仿真结果搭建自由落体实验台确定电极最佳宽度.仿真结果表明:电极宽度增加,传感器的轴向灵敏度与径向灵敏度也会增加,但整体均匀性会变差.环形感应电极的轴向长度对传感器径向灵敏度分布有显著影响,对轴向灵敏度分布无显著影响.自由落体实验表明电极宽度为9 mm时,传感器测量效果最好.
Abstract
In order to improve the sensitivity of the electrostatic cross-correlation velocity measurement sensor,the influence of the ring induction electrode on the sensitivity of the sensor was studied.COMSOL simulation software was used to establish the sensor model for simulation,and the influence of the electrode axial length on the sensitivity distribution characteristics of the e-lectrostatic sensor was obtained.Based on the simulation results,a free-fall experiment platform was built to determine the optimal axial length of the electrode.The simulation results show that with the increase of electrode axial length,the axial sensitivity and radial sensitivity of the sensor also increase,but the overall uniformity will become worse.The axial length of the ring induction e-lectrode has a significant effect on the radial sensitivity distribution of the sensor,but has no significant effect on the axial sensi-tivity distribution.The free fall experiment shows that the sensor has the best measuring effect when the electrode axial length is 9 mm.
关键词
环状感应电极/静电传感器/灵敏度/方差分析Key words
ring induction electrode/electrostatic sensor/sensitivity/analysis of varian引用本文复制引用
出版年
2024
NETL
NSTL
万方数据