An all-printed wireless humidity sensor label

被引：53

作者：

Wang, Xiaodong ^{[1
]}

Larsson, Oscar ^{[1
]}

Platt, Duncan ^{[2
]}

Nordlinder, Staffan ^{[3
]}

Engquist, Isak ^{[1
]}

Berggren, Magnus ^{[1
]}

Crispin, Xavier ^{[1
]}

机构：

[1] Linkoping Univ, Dept Sci & Technol ITN, SE-60174 Norrkoping, Sweden

[2] Acreo AB, SE-60117 Norrkoping, Sweden

[3] WebShape AB, SE-60117 Norrkoping, Sweden

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 166卷

关键词：

Printed humidity sensor label; Wireless sensor; Polyelectrolyte; Dry-phase patterning; Resonance;

D O I：

10.1016/j.snb.2012.03.009

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Printed electronics promise various kinds of sensor circuit labels, for applications in distributed sensing and monitoring, which can be manufactured using traditional printing tools at very low cost. Elevated humidity levels or water leakages cause tremendous costs in our society, such as in construction industries and in transportations. Distributed monitoring and remote sensing of the humidity level inside walls of buildings and packages is therefore desired and urgently needed. Here, we report a wireless humidity sensor label that is manufactured using screen-printing and dry-phase patterning. The sensor label includes a planar antenna, a tuning capacitor and a printed sensor-capacitor head. Through electromagnetic coupling between a reader and the printed sensor label, changes in humidity level were remotely detected and read-out as a shift of the resonant frequency. The manufacturing process of the humidity sensor label is fully compatible with inexpensive, reel-to-reel processing technologies, thus enabling low cost production. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：556 / 561

页数：6