Memorias de investigación
Artículos en revistas:
Detailed Study of Amplitude Nonlinearity in Piezoresistive Force Sensors
Año:2011

Áreas de investigación
  • Ingeniería eléctrica, electrónica y automática

Datos
Descripción
This article upgrades the RC linear model presented for piezoresistive force sensors. Amplitude nonlinearity is found in sensor conductance, and a characteristic equation is formulated for modeling its response under DC-driving voltages below 1 V. The feasibility of such equation is tested on four FlexiForce model A201-100 piezoresistive sensors by varying the sourcing voltage and the applied forces. Since the characteristic equation proves to be valid, a method is presented for obtaining a specific sensitivity in sensor response by calculating the appropriate sourcing voltage and feedback resistor in the driving circuit; this provides plug-and-play capabilities to the device and reduces the start-up time of new applications where piezoresistive devices are to be used. Finally, a method for bypassing the amplitude nonlinearity is presented with the aim of reading sensor capacitance.
Internacional
No
JCR del ISI
No
Título de la revista
Sensors
ISSN
14248220
Factor de impacto JCR
Información de impacto
Volumen
11
DOI
10.3390/s110908836
Número de revista
9
Desde la página
8836
Hasta la página
8854
Mes
SIN MES
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Participantes

Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Centro de Automática y Robótica (CAR). Centro Mixto UPM-CSIC