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Proceedings Paper

Development of a fiber shape polymeric humidity sensor
Author(s): Yen-Tse Cheng; Ling-Chih Chen; Wei-Chih Wang
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Paper Abstract

In this paper, we demonstrate a polymeric humidity sensor made of a cellulose based composite nanofiber. The device measures humidity via a humidity induced electrical impedance change. The compact, efficient design of the fiber makes it ideal to incorporate into textiles for biometrics applications such as body fluid monitoring. Initial test results show that the sensor can measure between 20 to 80% relative humidity with a sensitivity of about 2%. The impedance of the sensor material changes relatively linearly with relative humidity. The sensor also shows a relatively fast response (~4s) compared to current commercial sensors.

Paper Details

Date Published: 17 April 2017
PDF: 6 pages
Proc. SPIE 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 101670K (17 April 2017); doi: 10.1117/12.2260302
Show Author Affiliations
Yen-Tse Cheng, National Tsing Hua Univ. (Taiwan)
Ling-Chih Chen, National Tsing Hua Univ. (Taiwan)
Wei-Chih Wang, National Tsing Hua Univ. (Taiwan)
National Taiwan Univ. (Taiwan)
Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 10167:
Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017
Vijay K. Varadan, Editor(s)

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