一种新型的表面声波阻抗传感器及其在液相体系中的应用

A New Surface Acoustic Wave Impedance Sensor and Its Application in Liquid System

一种新型的表面声波阻抗传感器及其在液相体系中的应用姚守拙，陈康，刘德忠，聂利华（湖南大学化学化工系，长沙，４１００８２）关键词表面声波，阻抗传感器，液相应用表面声波传感器（ＳＡＷＳ）具有较高的灵敏度和检测精度，已广泛应用于气体微量组分分析、色谱检测和...

A surface acoustic wave (SAW) impedance sensor was constructed by combining a 61 MHz SAW resonator with the conductive electrodes. Responses of such SAW impedance sensor were investigated for different electrolyte solutions arid nonaqueous solutions.A frequency shift-electrolytic conductivity equation was presented as △f=aX+b. The sensor was applied to the rapid determination of total salt content in serum and micro-water content in organic solvent.