电极分布对织物触摸垫电容及触控信号的影响  

Effects of Electrode Arrangements on the Capacitance and Touch Signal of Fabirc Touch Pads

作　　者：甘行 杨旭东[1] 董洪强 胡吉永[1] GAN Xing;YANG Xu-dong;DONG Hong-qiang;HU Ji-yong(Department of Textile,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学纺织学院,上海201620

出　　处：《软件导刊》2020年第4期23-27,共5页Software Guide

摘　　要：为优化投射式电容织物触摸垫结构,以得到优异的触控性能,针对条形电极形式,以触摸前后电容的相对变化率表示触控信号,运用仿真和实验验证相结合的方法研究不同电极宽度与不同电极间间隙对投射式电容织物触摸垫初始电容及分布的影响。结果表明,电极宽度和电极间间隙的增加使触摸垫驱动电极和感应电极间的初始电容增加,但电极宽度影响更为显著,并且触摸垫电极间的互电容呈边缘小中间大的分布状态。在电极导电率为61.6×10^6S/m,电极宽度约为2mm^3mm,电极间间隙在3mm左右情况下实验,结果显示,触摸垫在触摸前后的电容变化率较大,触控信号较强。To optimize the touching performance of the projected capacitance touch pads based on textile materials with strip electrodes,the simulation and experimental validation are combined to study the effects of electrode width and inter-electrode gap on the relative change rate of capacitance before and after touching.The results show that the initial capacitance between the driving electrode and the sensing electrode increases with the increase of electrode width and electrode gap,but the influence of electrode width is more significant,and the inter-electrodes mutual capacitance in the edge of pad is smaller than that in the middle.In addition,when the conductivity of electrodes was 61.6×10^6S/m,the electrode width was about 2mm^3mm and the inter-electrode was approximately 3mm,there would be a larger relative change rate of capacitive.

关 键 词：织物触摸垫 电极宽度 电极间间隙 互电容 触控信号 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]