A Graphene-Based Flexible Pressure Sensor with Applications to Plantar Pressure Measurement and Gait Analysis

In the present study, we propose and develop a flexible pressure sensor based on the piezoresistive effect of multilayer graphene films on polyester textile. The pressure response results from the deformation of graphene conductive network structure and the changes in resistance. Here, we show that...

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Bibliographic Details
Published inMaterials Vol. 10; no. 9; p. 1068
Main Authors Lou, Cunguang, Wang, Shuo, Liang, Tie, Pang, Chenyao, Huang, Lei, Run, Mingtao, Liu, Xiuling
Format Journal Article
LanguageEnglish
Published Switzerland MDPI 11.09.2017
MDPI AG
Subjects
flexible textile
foot plantar
gait analysis
graphene
pressure sensor
pressure sensor
flexible textile
foot plantar
gait analysis
graphene
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Summary:In the present study, we propose and develop a flexible pressure sensor based on the piezoresistive effect of multilayer graphene films on polyester textile. The pressure response results from the deformation of graphene conductive network structure and the changes in resistance. Here, we show that the graphene pressure sensor can achieve a sensitivity value of 0.012 kPa - 1 , the measurement range can be as high as 800 kPa, and the response time can reach to 50 ms. Subsequently, a stable in-shoe wireless plantar pressure measurement system is developed and dynamic pressure distribution is acquired in real-time. Overall, the graphene textile pressure sensor has the advantage of wide dynamic range, flexibility and comfort, which provides the high possibility for footwear evaluation, clinical gait analysis and pathological foot diagnosis.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma10091068