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http://dx.doi.org/10.12989/scs.2020.35.6.779

Study of body movement monitoring utilizing nano-composite strain sensors contaning Carbon nanotubes and silicone rubber  

Azizkhani, Mohammadbagher (Department of Mechanical Engineering, Shahid Rajaee Teacher Training University)
Kadkhodapour, Javad (Department of Mechanical Engineering, Shahid Rajaee Teacher Training University)
Anaraki, Ali Pourkamali (Department of Mechanical Engineering, Shahid Rajaee Teacher Training University)
Hadavand, Behzad Shirkavand (Department of Resin and Additives, Institute of Color Science and Technology)
Kolahchi, Reza (Institute of Research and Development, Duy Tan University)
Publication Information
Steel and Composite Structures / v.35, no.6, 2020 , pp. 779-788 More about this Journal
Abstract
Multi-Walled Carbon nanotubes (MWCNT) coupled with Silicone Rubber (SR) can represent applicable strain sensors with accessible materials, which result in good stretchability and great sensitivity. Employing these materials and given the fact that the combination of these two has been addressed in few studies, this study is trying to represent a low-cost, durable and stretchable strain sensor that can perform excellently in a high number of repeated cycles. Great stability was observed during the cyclic test after 2000 cycles. Ultrahigh sensitivity (GF>1227) along with good extensibility (ε>120%) was observed while testing the sensor at different strain rates and the various number of cycles. Further investigation is dedicated to sensor performance in the detection of human body movements. Not only the sensor performance in detecting the small strains like the vibrations on the throat was tested, but also the larger strains as observed in extension/bending of the muscle joints like knee were monitored and recorded. Bearing in mind the applicability and low-cost features, this sensor may become promising in skin-mountable devices to detect the human body motions.
Keywords
multi-walled carbon nanotubes; silicone rubber; stretchablity; strain sensors; piezoresistive sensor; body movement monitoring;
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Times Cited By KSCI : 8  (Citation Analysis)
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