Liquid Crystal Temperature Sensor Based on Three Electrodes and a High-Resistivity Layer

被引：7

作者：

Francisco Algorri, Jose ^{[1
]}

Contreras Lallana, Pedro ^{[1
]}

Urruchi, Virginia ^{[1
]}

Manuel Sanchez-Pena, Jose ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Elect Technol, E-28911 Madrid, Spain

来源：

IEEE SENSORS JOURNAL | 2015年 / 15卷 / 09期

关键词：

Temperature sensors; thin film; liquid crystals; REFRACTIVE-INDEXES; ARRAY; DISPLAYS; DEVICE;

D O I：

10.1109/JSEN.2015.2439334

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a novel liquid crystal (LC) temperature sensor is proposed and theoretically analyzed. A detailed analytical model has been presented. The sensor is designed and optimized to produce maximum sensitivities. This sensor is composed of only three electrodes. The electrodes are very simple and can be easily designed for different sizes. The structure uses the temperature dependence of the LC permittivity as sensing magnitude. Several LC have been investigated. The response improves the characteristics of previous LC sensors and even some commercial sensors in terms of sensitivity or linearity. The sensor has a high sensitivity, low-voltage control, low power consumption, and high linearity. The main advantage is the possible integration of this sensor in other LC devices.

引用

页码：5222 / 5227

页数：6

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