电阻式触摸屏
电容感应
电容
电极
材料科学
共形映射
表征(材料科学)
传感器
电介质
二进制数
有限元法
光电子学
声学
纳米技术
化学
电气工程
热力学
物理
几何学
工程类
数学
物理化学
算术
作者
Thomas Hofmann,Kai‐Uwe Schröder,J. Zacheja,J. Binder
标识
DOI:10.1016/s0925-4005(96)01966-1
摘要
Examinations of uncoated interdigitated structures (IDSs) for fluid characterization are presented in this paper. The measuring principle is based on the determination of the capacitance and resistance of the electrode arrangement in fluids. A binary fluid mixture can be characterized from the measured variables if the components are known. Common IDS transducers are coated with a sensitive layer that changes its capacitive or resistive characteristics when exposed to a substance, e.g., a gas. In the presented application the fluid itself serves as dielectric and resistive medium. The sensor element is analysed by measurements in pure fluids and in binary fluid mixtures. Additionally, theoretical methods for the calculation of resistance and capacitance of an IDS in fluid are presented. These methods are based on FEM simulation and conformal mapping.
科研通智能强力驱动
Strongly Powered by AbleSci AI