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纸张作为喷墨打印电容式湿度传感器的活性层。

Paper as Active Layer in Inkjet-Printed Capacitive Humidity Sensors.

作者信息

Gaspar Cristina, Olkkonen Juuso, Passoja Soile, Smolander Maria

机构信息

Printed Functional Solutions, VTT Technical Research Centre of Finland, Espoo 02044, Finland.

出版信息

Sensors (Basel). 2017 Jun 22;17(7):1464. doi: 10.3390/s17071464.

DOI:10.3390/s17071464
PMID:28640182
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5539845/
Abstract

An inkjet-printed relative humidity sensor based on capacitive changes which responds to different humidity levels in the environment is presented in this work. The inkjet-printed silver interdigitated electrodes configuration on the paper substrate allowed for the fabrication of a functional proof-of-concept of the relative humidity sensor, by using the paper itself as a sensing material. The sensor sensitivity in terms of relative humidity changes was calculated to be around 2 pF/RH %. The response time against different temperature steps from 3 to 85 °C was fairly constant (about 4-5 min), and it was considered fast for the aimed application, a smart label.

摘要

本文介绍了一种基于电容变化的喷墨打印相对湿度传感器,该传感器可响应环境中的不同湿度水平。在纸质基板上喷墨打印的银叉指电极配置,通过将纸张本身用作传感材料,实现了相对湿度传感器功能概念验证的制作。经计算,该传感器在相对湿度变化方面的灵敏度约为2 pF/RH%。在3至85°C的不同温度阶跃下,其响应时间相当恒定(约4-5分钟),对于目标应用——智能标签而言,这一响应时间被认为是快速的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/ec342a484b2c/sensors-17-01464-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/e2432070b794/sensors-17-01464-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/f8a61c2fa77e/sensors-17-01464-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/6d3b8c007153/sensors-17-01464-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/60dbd90b0aba/sensors-17-01464-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/76340ad0e69d/sensors-17-01464-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/ec342a484b2c/sensors-17-01464-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/e2432070b794/sensors-17-01464-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/f8a61c2fa77e/sensors-17-01464-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/6d3b8c007153/sensors-17-01464-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/60dbd90b0aba/sensors-17-01464-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/76340ad0e69d/sensors-17-01464-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d8c/5539845/ec342a484b2c/sensors-17-01464-g006.jpg

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