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为了解决无源压力传感器的无线信号传输性能问题,采用环氧树脂基底制作无源压力传感器模拟结构.传感器无线测试装置由共振电容空腔和感应天线组成,内部无需有源器件、电池等.通过改变压力敏感结构电感天线的金属层厚度和线宽等因素来研究无线信号传输性能.经过实验测试,电感的品质因素Q影响传感器的信号传输.可以通过对金属层加厚,对线宽加宽,达到减小电感的电阻,从而增大传感器电感的Q值,即有利于无线信号的传输.
In order to solve the problem of wireless signal transmission performance of passive pressure sensor, the simulation structure of passive pressure sensor is made of epoxy resin substrate.The sensor wireless test device consists of resonant capacitor cavity and sensor antenna without internal active components, batteries, Change the thickness and line width of the metal layer of the pressure-sensitive structure of the inductor antenna to study the wireless signal transmission performance.After the experimental test, the quality factor of the inductor Q affect the sensor signal transmission.Can be thickened on the metal layer, widening the linewidth , To reduce the inductance of the inductor, thereby increasing the Q value of the sensor inductance, that is conducive to the transmission of wireless signals.