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【Polymers】Flexible and Optical Fiber Sensors Composited by Graphene and PDMS for Motion Detection
writer:Dong Wang, Bin Sheng*
keywords:Optical Fiber, Strain sensors, Motion Detection, Flexible
source:期刊
specific source:Polymers , http://dx.doi.org/10.3390/polym11091433
Issue time:2019年

A stretchable optical sensor can quantify the strain generated by human movement, which has been widely studied in the development of health monitoring systems, human-machine interfaces and wearable devices. This paper reports a graphene-added polydimethylsiloxane (PDMS) fiber, which has high tensile properties and good light transmittance suitable for detecting human movement. When the graphene-added PDMS fiber is stretched, the concentration of graphene per unit volume is constant, and the sensor uses the optical loss of the beam through the graphene PDMS fiber to detect the tensile strain. The fiber has excellent strain-sensing performance, outstanding sensitivity, a tensile property of 150%, and an excellent waterproofing performance. The linear response and repeated response in large dynamic range could reach 100% stability. The results show that the sensor can be used to detect human motion detection. These excellent properties indicate that the fiber has potential applications in wearable devices, soft robots and electronic skin.