Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.

Resistive sensor arrays are formed by a large number of individual sensors which are distributed in different ways. This paper proposes a direct connection between an FPGA and a resistive array distributed in M rows and N columns, without the need of analog-to-digital converters to obtain resistance...

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Detalles Bibliográficos
Autores: Oballe-Peinado, Óscar, Vidal-Verdú, Fernando, Sánchez-Durán, José A, Castellanos-Ramos, Julián, Hidalgo-López, José A
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Instituto de Salud Carlos III (ISCIII)
Repositorio:Repisalud
Idioma:inglés
OAI Identifier:oai:repisalud.isciii.es:20.500.12105/17126
Acceso en línea:http://hdl.handle.net/20.500.12105/17126
Access Level:acceso abierto
Palabra clave:FPGAs
direct sensor-to-digital device interface
parallel analogue data acquisition
resistive sensor arrays
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spelling Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.Oballe-Peinado, ÓscarVidal-Verdú, FernandoSánchez-Durán, José ACastellanos-Ramos, JuliánHidalgo-López, José AFPGAsdirect sensor-to-digital device interfaceparallel analogue data acquisitionresistive sensor arraysResistive sensor arrays are formed by a large number of individual sensors which are distributed in different ways. This paper proposes a direct connection between an FPGA and a resistive array distributed in M rows and N columns, without the need of analog-to-digital converters to obtain resistance values in the sensor and where the conditioning circuit is reduced to the use of a capacitor in each of the columns of the matrix. The circuit allows parallel measurements of the N resistors which form each of the rows of the array, eliminating the resistive crosstalk which is typical of these circuits. This is achieved by an addressing technique which does not require external elements to the FPGA. Although the typical resistive crosstalk between resistors which are measured simultaneously is eliminated, other elements that have an impact on the measurement of discharge times appear in the proposed architecture and, therefore, affect the uncertainty in resistance value measurements; these elements need to be studied. Finally, the performance of different calibration techniques is assessed experimentally on a discrete resistor array, obtaining for a new model of calibration, a maximum relative error of 0.066% in a range of resistor values which correspond to a tactile sensor.20242024-01-1620162016-02-0120162016-02-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12105/17126reponame:Repisaludinstname:Instituto de Salud Carlos III (ISCIII)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repisalud.isciii.es:20.500.12105/171262026-06-12T12:43:37Z
dc.title.none.fl_str_mv Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
title Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
spellingShingle Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
Oballe-Peinado, Óscar
FPGAs
direct sensor-to-digital device interface
parallel analogue data acquisition
resistive sensor arrays
title_short Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
title_full Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
title_fullStr Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
title_full_unstemmed Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
title_sort Accuracy and Resolution Analysis of a Direct Resistive Sensor Array to FPGA Interface.
dc.creator.none.fl_str_mv Oballe-Peinado, Óscar
Vidal-Verdú, Fernando
Sánchez-Durán, José A
Castellanos-Ramos, Julián
Hidalgo-López, José A
author Oballe-Peinado, Óscar
author_facet Oballe-Peinado, Óscar
Vidal-Verdú, Fernando
Sánchez-Durán, José A
Castellanos-Ramos, Julián
Hidalgo-López, José A
author_role author
author2 Vidal-Verdú, Fernando
Sánchez-Durán, José A
Castellanos-Ramos, Julián
Hidalgo-López, José A
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv FPGAs
direct sensor-to-digital device interface
parallel analogue data acquisition
resistive sensor arrays
topic FPGAs
direct sensor-to-digital device interface
parallel analogue data acquisition
resistive sensor arrays
description Resistive sensor arrays are formed by a large number of individual sensors which are distributed in different ways. This paper proposes a direct connection between an FPGA and a resistive array distributed in M rows and N columns, without the need of analog-to-digital converters to obtain resistance values in the sensor and where the conditioning circuit is reduced to the use of a capacitor in each of the columns of the matrix. The circuit allows parallel measurements of the N resistors which form each of the rows of the array, eliminating the resistive crosstalk which is typical of these circuits. This is achieved by an addressing technique which does not require external elements to the FPGA. Although the typical resistive crosstalk between resistors which are measured simultaneously is eliminated, other elements that have an impact on the measurement of discharge times appear in the proposed architecture and, therefore, affect the uncertainty in resistance value measurements; these elements need to be studied. Finally, the performance of different calibration techniques is assessed experimentally on a discrete resistor array, obtaining for a new model of calibration, a maximum relative error of 0.066% in a range of resistor values which correspond to a tactile sensor.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-02-01
2016
2016-02-01
2024
2024-01-16
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12105/17126
url http://hdl.handle.net/20.500.12105/17126
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repisalud
instname:Instituto de Salud Carlos III (ISCIII)
instname_str Instituto de Salud Carlos III (ISCIII)
reponame_str Repisalud
collection Repisalud
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.223283

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