In this work, we have developed novel flexible strain sensors based on an highly interconnected threedimensional Polyurethane (PU) foam coated with a Polyvinyl alcohol (PVA)-multilayer graphene nanoplatelets (MLGs) paint. The electromechanical response of the sensors embedded in a biocompatible elastomer is firstly investigated through quasistatic tensile tests. The measured resistance variation under an applied stress confirmed the piezoresistive behavior of the fabricated sensors, showing a gauge factor of 8 at strain of 20%. Finally, we also demonstrated the feasibility to use an array of three sensors to monitor the flexion/ extension of finger joints.

Wearable graphene-based sensor array for finger tracking / Rinaldi, Andrea; Proietti, Alessandro; Tamburrano, Alessio; Sarto, Maria Sabrina. - ELETTRONICO. - (2016), pp. 1-3. ((Intervento presentato al convegno IEEE SENSORS 2016 tenutosi a ORLANDO, FL, USA nel 30 Oct. - 3 Nov. 2016 [10.1109/ICSENS.2016.7808737].

Wearable graphene-based sensor array for finger tracking

RINALDI, ANDREA;PROIETTI, ALESSANDRO;TAMBURRANO, Alessio;SARTO, Maria Sabrina
2016

Abstract

In this work, we have developed novel flexible strain sensors based on an highly interconnected threedimensional Polyurethane (PU) foam coated with a Polyvinyl alcohol (PVA)-multilayer graphene nanoplatelets (MLGs) paint. The electromechanical response of the sensors embedded in a biocompatible elastomer is firstly investigated through quasistatic tensile tests. The measured resistance variation under an applied stress confirmed the piezoresistive behavior of the fabricated sensors, showing a gauge factor of 8 at strain of 20%. Finally, we also demonstrated the feasibility to use an array of three sensors to monitor the flexion/ extension of finger joints.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/927646
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