2017
DOI: 10.5540/03.2017.005.01.0391
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Modelagem Matemática de Elementos Sensores Usando Grafite

Abstract: Resumo. Este trabalho apresenta um estudo sobre a modelagem matemática de elementos sensores piezoresistivos obtidos com grafite tipo 2B. Os parâmetros analisados foram o fator de sensibilidade, variação da resistência, tensão mecânica aplicada (longitudinal e transversal) e coeficientes piezoresistivos. Os resultados das simulações computacionais e implementação do modelo matemático foram comparados com os dados experimentais obtidos através de um arranjo experimental. O filme de grafite estudadoé um bom indi… Show more

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Cited by 2 publications
(3 citation statements)
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“…2 [9]. Although this kind of sensor is composed of ordinary materials, it shows to have good efficiency, since it has a relatively big change on its electrical resistance over the mechanical strain (Gauge Factor) as shown in the paper [4], therefore showing to be an alternative to semiconductor strain gauges.…”
Section: The Piezoresistive Sensormentioning
confidence: 99%
See 1 more Smart Citation
“…2 [9]. Although this kind of sensor is composed of ordinary materials, it shows to have good efficiency, since it has a relatively big change on its electrical resistance over the mechanical strain (Gauge Factor) as shown in the paper [4], therefore showing to be an alternative to semiconductor strain gauges.…”
Section: The Piezoresistive Sensormentioning
confidence: 99%
“…However the piezoresistive sensor obtained from the GoP technique itself has been proved to be flexible, low cost, lightweight, biocompatible and recyclable [3]. The reference [4] shows that the sensors some deviations that are believed to be related to the deposition method due to the manual deposition of the graphite on the substrate and / or in the nature of the materials. Conventional CMOS technology uses silicon as a substrate and cannot be flexible like the polymer proposed in this work.…”
Section: Introductionmentioning
confidence: 99%
“…The crystallographic planes are important for the deposition of graphite films by the GoP -Graphite on Paper process and determination of the sensitivity factors of the piezoresistors (GABBI et al, 2017). Figure 3 shows an optical microscopic analysis of the graphite films deposited on the paper substrate with grammage 75 g/m 2 .…”
Section: Introductionmentioning
confidence: 99%