Flexible temperature sensor integration into e-textiles using different industrial yarn fabrication processes

Lugoda, P., Costa, J.C., Oliveira, C., Garcia-Garcia, L.A., Wickramasinghe, S.D., Pouryazdan, A., Roggen, D., Dias, T. ORCID: 0000-0002-3533-0398 and Münzenrieder, N., 2020. Flexible temperature sensor integration into e-textiles using different industrial yarn fabrication processes. Sensors, 20 (1): 73. ISSN 1424-8220

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Abstract

Textiles enhanced with thin-film flexible sensors are well-suited for unobtrusive monitoring of skin parameters due to the sensors’ high conformability. These sensors can be damaged if they are attached to the surface of the textile, also affecting the textiles’ aesthetics and feel. We investigate the effect of embedding flexible temperature sensors within textile yarns, which adds a layer of protection to the sensor. Industrial yarn manufacturing techniques including knit braiding, braiding, and double covering were utilised to identify an appropriate incorporation technique. The thermal time constants recorded by all three sensing yarns was <10 s. Simultaneously, effective sensitivity only decreased by a maximum of 14% compared to the uncovered sensor. This is due to the sensor being positioned within the yarn instead of being in direct contact with the measured surface. These sensor yarns were not affected by bending and produced repeatable measurements. The double covering method was observed to have the least impact on the sensors’ performance due to the yarn’s smaller dimensions. Finally, a sensing yarn was incorporated in an armband and used to measure changes in skin temperature. The demonstrated textile integration techniques for flexible sensors using industrial yarn manufacturing processes enable large-scale smart textile fabrication.

Item Type: Journal article
Description: In special issue: Flexible and Stretchable Electronic Sensors)
Publication Title: Sensors
Creators: Lugoda, P., Costa, J.C., Oliveira, C., Garcia-Garcia, L.A., Wickramasinghe, S.D., Pouryazdan, A., Roggen, D., Dias, T. and Münzenrieder, N.
Publisher: MDPI AG
Date: 1 January 2020
Volume: 20
Number: 1
ISSN: 1424-8220
Identifiers:
NumberType
10.3390/s20010073DOI
1262948Other
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Divisions: Schools > School of Art and Design
Depositing User: Jill Tomkinson
Date Added: 09 Jan 2020 11:39
Last Modified: 09 Jan 2020 11:39
URI: http://irep.ntu.ac.uk/id/eprint/38945

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