Diseño y construcción de un sistema de medición de deformación de banda (textil) + placa de grafeno sometida a tracción.

Abstract

In the present work, a textile band system with the implementation of a laser-induced graphene sensor based on polyimide was developed. Graphene, considered as a commonly used material for flexible functional devices, managed to couple appropriately in terms of its mechanical and electrical properties with the polyimide used. The architecture of a linear sensor was developed to capture the deformations of the textile band, this, with the aim of developing this prototype with respiratory biomedical applications in mind. It was demonstrated that the methodology for obtaining the sensor guarantees a linear response of the change in resistance with respect to the deformation of the band system. In addition, the consistency and repeatability of this property has demonstrated through tensile tests. However, the resulting voltage to strain ratio in millimeters for the system probed to be too low, i.e., not satisfactory for expected strain values considering the projected application of the band system on a human rib cage.