Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/s21041490 http://hdl.handle.net/11449/205915 |
Resumo: | A low-cost signal processing circuit developed to measure and drive a heat dissipation soil matric potential sensor based on a single thermosensitive resistor is demonstrated. The SnSe2 has a high thermal coefficient, from −2.4 Ω/◦ C in the 20 to 25◦ C to −1.07 Ω/◦ C in the 20 to 25◦ C. The SnSe2 thermosensitive resistor is encapsulated with a porous gypsum block and is used as both the heating and temperature sensing element. To control the power dissipated on the thermosensitive resistor and keep it constant during the heat pulse, a mixed analogue/digital circuit is used. The developed control circuit is able to maintain the dissipated power at 327.98 ± 0.3% mW when the resistor changes from 94.96 Ω to 86.23 Ω. When the gravimetric water content of the porous block changes from dry to saturated (θw = 36.7%), we measured a variation of 4.77 Ω in the thermosensitive resistor, which results in an end-point sensitivity of 130 mΩ/%. The developed system can easily meet the standard requirement of measuring the gravimetric soil water content with a resolution of approximately ∆θw = 1%, since the resistance is measured with a resolution of approximately 31 µΩ, three orders of magnitude smaller than the sensitivity. |
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Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistorHeat dissipation matric water potential sensorHeat dissipation soil matric potential sensorPower control circuitsSignal condition-ing circuitSingle-element soil matric water potential sensorA low-cost signal processing circuit developed to measure and drive a heat dissipation soil matric potential sensor based on a single thermosensitive resistor is demonstrated. The SnSe2 has a high thermal coefficient, from −2.4 Ω/◦ C in the 20 to 25◦ C to −1.07 Ω/◦ C in the 20 to 25◦ C. The SnSe2 thermosensitive resistor is encapsulated with a porous gypsum block and is used as both the heating and temperature sensing element. To control the power dissipated on the thermosensitive resistor and keep it constant during the heat pulse, a mixed analogue/digital circuit is used. The developed control circuit is able to maintain the dissipated power at 327.98 ± 0.3% mW when the resistor changes from 94.96 Ω to 86.23 Ω. When the gravimetric water content of the porous block changes from dry to saturated (θw = 36.7%), we measured a variation of 4.77 Ω in the thermosensitive resistor, which results in an end-point sensitivity of 130 mΩ/%. The developed system can easily meet the standard requirement of measuring the gravimetric soil water content with a resolution of approximately ∆θw = 1%, since the resistance is measured with a resolution of approximately 31 µΩ, three orders of magnitude smaller than the sensitivity.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Generalitat de CatalunyaFaculty of Science and Engineering Universidade Estadual Paulista (UNESP)Department of Electrical Engineering Universidade Tecnológica Federal do Paraná (UTFPR)Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1Catalan Institution for Research and Advanced Studies-ICREA, Pg. Lluís Companys 23Department of Semiconductors Instrumentation and Photonics School of Electrical and Computer Engineering University of CampinasFaculty of Science and Engineering Universidade Estadual Paulista (UNESP)CAPES: 0001Generalitat de Catalunya: 2017SGR1246Universidade Estadual Paulista (Unesp)Universidade Tecnológica Federal do Paraná (UTFPR)Catalonia Institute for Energy Research (IREC)Catalan Institution for Research and Advanced Studies-ICREAUniversidade Estadual de Campinas (UNICAMP)Morais, Flávio [UNESP]Carvalhaes-Dias, PedroZhang, YuCabot, AndreuFlosi, Fábio S.Duarte, Luis CaparrozSantos, Adelson DosSiqueira Dias, José A.2021-06-25T10:23:21Z2021-06-25T10:23:21Z2021-02-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-17http://dx.doi.org/10.3390/s21041490Sensors, v. 21, n. 4, p. 1-17, 2021.1424-8220http://hdl.handle.net/11449/20591510.3390/s210414902-s2.0-85101191226Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSensorsinfo:eu-repo/semantics/openAccess2021-10-22T18:33:27Zoai:repositorio.unesp.br:11449/205915Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:46:44.781758Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
title |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
spellingShingle |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor Morais, Flávio [UNESP] Heat dissipation matric water potential sensor Heat dissipation soil matric potential sensor Power control circuits Signal condition-ing circuit Single-element soil matric water potential sensor |
title_short |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
title_full |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
title_fullStr |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
title_full_unstemmed |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
title_sort |
Low-cost control and measurement circuit for the implementation of single element heat dissipation soil water matric potential sensor based on a SnSe2 thermosensitive resistor |
author |
Morais, Flávio [UNESP] |
author_facet |
Morais, Flávio [UNESP] Carvalhaes-Dias, Pedro Zhang, Yu Cabot, Andreu Flosi, Fábio S. Duarte, Luis Caparroz Santos, Adelson Dos Siqueira Dias, José A. |
author_role |
author |
author2 |
Carvalhaes-Dias, Pedro Zhang, Yu Cabot, Andreu Flosi, Fábio S. Duarte, Luis Caparroz Santos, Adelson Dos Siqueira Dias, José A. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Tecnológica Federal do Paraná (UTFPR) Catalonia Institute for Energy Research (IREC) Catalan Institution for Research and Advanced Studies-ICREA Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Morais, Flávio [UNESP] Carvalhaes-Dias, Pedro Zhang, Yu Cabot, Andreu Flosi, Fábio S. Duarte, Luis Caparroz Santos, Adelson Dos Siqueira Dias, José A. |
dc.subject.por.fl_str_mv |
Heat dissipation matric water potential sensor Heat dissipation soil matric potential sensor Power control circuits Signal condition-ing circuit Single-element soil matric water potential sensor |
topic |
Heat dissipation matric water potential sensor Heat dissipation soil matric potential sensor Power control circuits Signal condition-ing circuit Single-element soil matric water potential sensor |
description |
A low-cost signal processing circuit developed to measure and drive a heat dissipation soil matric potential sensor based on a single thermosensitive resistor is demonstrated. The SnSe2 has a high thermal coefficient, from −2.4 Ω/◦ C in the 20 to 25◦ C to −1.07 Ω/◦ C in the 20 to 25◦ C. The SnSe2 thermosensitive resistor is encapsulated with a porous gypsum block and is used as both the heating and temperature sensing element. To control the power dissipated on the thermosensitive resistor and keep it constant during the heat pulse, a mixed analogue/digital circuit is used. The developed control circuit is able to maintain the dissipated power at 327.98 ± 0.3% mW when the resistor changes from 94.96 Ω to 86.23 Ω. When the gravimetric water content of the porous block changes from dry to saturated (θw = 36.7%), we measured a variation of 4.77 Ω in the thermosensitive resistor, which results in an end-point sensitivity of 130 mΩ/%. The developed system can easily meet the standard requirement of measuring the gravimetric soil water content with a resolution of approximately ∆θw = 1%, since the resistance is measured with a resolution of approximately 31 µΩ, three orders of magnitude smaller than the sensitivity. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:23:21Z 2021-06-25T10:23:21Z 2021-02-02 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/s21041490 Sensors, v. 21, n. 4, p. 1-17, 2021. 1424-8220 http://hdl.handle.net/11449/205915 10.3390/s21041490 2-s2.0-85101191226 |
url |
http://dx.doi.org/10.3390/s21041490 http://hdl.handle.net/11449/205915 |
identifier_str_mv |
Sensors, v. 21, n. 4, p. 1-17, 2021. 1424-8220 10.3390/s21041490 2-s2.0-85101191226 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sensors |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-17 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128561686511616 |