高K值LC谐振互感耦合系统的设计与分析

主要研究了LC谐振互感耦合系统的耦合性能。从平面螺旋电感线圈互感模型分析了LC谐振互感耦合系统的耦合因数与距离、线圈尺寸之间的关系,设计并制作多组不同参数的电感线圈进行比较实验。结果表明当传感器的尺寸大小受外界环境限制而固定时,线圈内径的增大、匝数的减小(线宽和线间距一定);线宽、线间距和内径的减小(匝数一定)能有效增大耦合因数;并提高了互感耦合系统的传输效率,更有利于对LC谐振传感器信号的提取;为LC谐振传感器应用在高温、高压等恶劣环境奠定了基础。

Design and Analysis of High K LC Resonance Mutual Inductance Coupling System

This paper mainly researched on the coupling performance of LC resonance mutual inductance coupling system. The relationship between the coupling factor and the distance, coil size is analyzed through the planar spiral inductor mutual inductance model. Multiple inductance coils of different parameters are designed and fabricated, and when the sensor size is fixed with the environmental restrictions, the increase of coil inner diameter, the decrease of number of turns (line width and line spacing is certain ) and the decrease of line width, line spacing and coil inner diameter (the number of turns is certain) can effectively improve the coupling factor, as well as the transmission efficiency of mutual inductance coupling system, which is benefit for the acquisition of LC resonant sensor signal and laid a solid foundation of LC resonant sensor application in high temperature, high pressure harsh environment.