Basic characteristics of quartz crystal sensor with interdigitated electrodes

Analytical Chemistry Research Pub Date : 2016-03-01 DOI:10.1016/j.ancr.2016.02.001

Hiroshi Muramatsu , Maki Kawamura , Sachiko Tanabe , Masayuki Suda

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引用次数: 4

Abstract

This paper describes basic characteristics of the quartz crystal sensor with interdigitated electrodes (IDE quartz crystal sensor) which is for simultaneous monitoring of mass, viscosity, conductivity and dielectric changes of liquids or thin films. As the IDE quartz crystal sensor has three terminals for a pair of IDEs on the one side and a counter electrode on the other side, the resonance properties have been analyzed using the electrical equivalent circuit models and measured experimentally for all connecting types of electrode pairs. The IDE quartz crystal has shown clear resonance curves for calculating the resonance frequency and resonance resistance values as well as normal quartz crystal in the air and in contact with liquid. Small shifts in the resonance frequency and resonance resistance depending on the connecting types have been obtained and analyzed using the equivalent circuit models. We have found the integrated quartz crystal and IDE sensors could be monitored simultaneously by only one impedance analyzer. Finally, two types of measuring systems have been demonstrated for continuous measuring methods.

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交错电极石英晶体传感器的基本特性

介绍了用于同时监测液体或薄膜的质量、粘度、电导率和介电变化的交错电极石英晶体传感器(IDE石英晶体传感器)的基本特性。由于IDE石英晶体传感器的一端为一对IDE，另一端为一个对电极，采用等效电路模型对其谐振特性进行了分析，并对所有连接类型的电极对进行了实验测量。IDE石英晶体与普通石英晶体在空气中和与液体接触时一样，具有清晰的谐振曲线，可用于计算谐振频率和谐振电阻值。利用等效电路模型分析了谐振频率和谐振电阻随连接方式的微小变化。我们发现集成石英晶体和IDE传感器可以通过一个阻抗分析仪同时监测。最后，两种类型的测量系统已经证明了连续测量方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analytical Chemistry Research

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