西南交通大学学报Issue(2)：330-336,7.DOI:10.3969/j.issn.0258-2724.2014.02.022
几何参数设计对相邻电容传感器性能的影响
Influence of Geometric Parameter Design on Performance of Capacitive Proximity Sensors
摘要
Abstract
To deal with the weak signal strength in the measurement of capacitive proximity sensors, the effects of geometric parameter design were investigated,and the sensor measurement performance was greatly improved by the geometric parameter optimization. The comprehensive evaluation standards of sensor performance were presented, including penetration depth, signal strength and noise tolerance,measurement sensitivity and dynamic range. For round capacitive proximity sensors,the effects of the surface area on sensor performance were analyzed. Four different structures including rectangular,round,interdigital and spiral-shaped sensors were designed. In the same conditions,the electric field distributions of the sensors with four structures were simulated and the measured fringe capacitance was compared. The results indicate that the geometric parameters have remarkable influence on the measured signal strength and measurement sensitivity;comparing with rectangular and round sensors,the measurement sensitivity of interdigital and spiral-shaped sesnros was increased by 66 . 8% and 33 . 5%.关键词
相邻电容传感器/信号强度/测量灵敏度/几何参数Key words
capacitive proximity sensor/signal strength/measurement sensitivity/geometric parameter分类
信息技术与安全科学引用本文复制引用
李楠,韩颖..几何参数设计对相邻电容传感器性能的影响[J].西南交通大学学报,2014,(2):330-336,7.基金项目
国家自然科学基金资助项目（51105008）；北京市教委科研计划资助项目（KM201310005034）；浙江省重中之重学科开放基金 （）
