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Analysis of Sensitivity, Linearity, Hysteresis, Responsiveness, and Fatigue of Textile Knit Stretch Sensors

1
School of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, UK
2
Dyson School of Design Engineering, Imperial College London, London SW7 2DB, UK
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(16), 3618; https://doi.org/10.3390/s19163618
Received: 11 July 2019 / Revised: 1 August 2019 / Accepted: 13 August 2019 / Published: 20 August 2019
(This article belongs to the Section Physical Sensors)
Wearable technology is widely used for collecting information about the human body and its movement by placing sensors on the body. This paper presents research into electronic textile strain sensors designed specifically for wearable applications which need to be lightweight, robust, and comfortable. In this paper, sixteen stretch sensors, each with different conductive stretch fabrics, are evaluated: EeonTex (Eeonyx Corporation), knitted silver-plated yarn, and knitted spun stainless steel yarn. The sensors’ performance is tested using a tensile tester while monitoring their resistance with a microcontroller. Each sensor was analyzed for its sensitivity, linearity, hysteresis, responsiveness, and fatigue through a series of dynamic and static tests. The findings show that for wearable applications a subset of the silver-plated yarn sensors had better ranked performance in terms of sensitivity, linearity, and steady state. EeonTex was found to be the most responsive, and the stainless steel yarn performed the worst, which may be due to the characteristics of the knit samples under test. View Full-Text
Keywords: wearable; e-textiles; smart textiles; strain sensor; stretch sensor wearable; e-textiles; smart textiles; strain sensor; stretch sensor
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MDPI and ACS Style

Liang, A.; Stewart, R.; Bryan-Kinns, N. Analysis of Sensitivity, Linearity, Hysteresis, Responsiveness, and Fatigue of Textile Knit Stretch Sensors. Sensors 2019, 19, 3618. https://doi.org/10.3390/s19163618

AMA Style

Liang A, Stewart R, Bryan-Kinns N. Analysis of Sensitivity, Linearity, Hysteresis, Responsiveness, and Fatigue of Textile Knit Stretch Sensors. Sensors. 2019; 19(16):3618. https://doi.org/10.3390/s19163618

Chicago/Turabian Style

Liang, An, Rebecca Stewart, and Nick Bryan-Kinns. 2019. "Analysis of Sensitivity, Linearity, Hysteresis, Responsiveness, and Fatigue of Textile Knit Stretch Sensors" Sensors 19, no. 16: 3618. https://doi.org/10.3390/s19163618

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