Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 26, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/26/10/105102
Keywords
wearable strain sensor; textile strain sensor; flexible strain sensor; gauge factor; smart textiles
Funding
- National Natural Science Fund [51303157]
- Ningbo Natural Science Fund [2013A610079]
- Ningbo Innovative Team Fund [2012B82014]
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In this paper, the contact effects are used as the key sensing element to develop flexible textile-structured strain sensors. The structures of the contact are analyzed theoretically and the contact resistances are investigated experimentally. The electromechanical properties of the textiles are investigated to find the key factors which determine the sensitivity, repeatability, and linearity of the sensor. The sensing mechanism is based on the change of contact resistance induced by the change of the configuration of the textiles. In order to improve the performance of the textile strain sensor, the contact resistance is designed based on the electromechanical properties of the fabric. It can be seen from the results that the performance of the sensor is largely affected by the structure of the contacts, which are determined by the morphology of fiber surface and the structures of the yarn and fabric.
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