Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/21197
Título: | Flexible pressure sensors: modeling and experimental characterization |
Autor(es): | Sepúlveda, A. T. Guzmán de Villoria, R. Viana, J. C. Pontes, A. J. Wardle, B. L. Rocha, Luís A. |
Palavras-chave: | Flexible sensors Nanocomposites Modeling Pressure sensors |
Data: | Out-2012 |
Editora: | Elsevier 1 |
Revista: | Procedia Engineering |
Resumo(s): | Flexible capacitive pressure sensors fabricated with nanocomposites were experimentally characterized and results compared with simulations from analytical modeling. Unlike traditional diaphragm silicon pressure sensors, the flexible nanocomposite sensors present a linear response over a large pressure range due to the changes in the volume of the dielectric that cause the pressure inside the dielectric cavity to change. Several devices with different geometries were used and the model results compare well with the experimental data. Sensitivities ranging from 2.5- 20 fF/kPa were obtained and the devices dynamic response show a dual behavior, i.e., response time of the sensor during a pressure decreasing step is lower than for a pressure increasing step. This comportment is explained by the viscoelastic behavior of the PDMS-based nanocomposites used for fabrication of the capacitive sensor electrodes. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/21197 |
DOI: | 10.1016/j.proeng.2012.09.361 |
ISSN: | 1877-7058 |
Versão da editora: | www.elsevier.com |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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AlexandraEurosensors.pdf Acesso restrito! | 596,96 kB | Adobe PDF | Ver/Abrir |