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Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation

dc.contributor.authorSolà Peñafiel, Nil
dc.contributor.authorManyosa i Vilardell, Xavier
dc.contributor.authorNavarrete Gatell, Eric
dc.contributor.authorRamos Castro, Juan José
dc.contributor.authorJiménez Serres, Vicente
dc.contributor.authorBermejo Broto, Sandra
dc.contributor.authorGarcía, Isabel
dc.contributor.authorLlobet Valero, Eduard
dc.contributor.authorDomínguez Pumar, Manuel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.date.accessioned2022-07-13T11:16:51Z
dc.date.available2024-08-08T00:30:44Z
dc.date.issued2022-08-15
dc.identifier.citationSolà, N. [et al.]. Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation. "Sensors and Actuators B: Chemical", 15 Agost 2022, vol. 365, núm. Article 131940.
dc.identifier.issn09254005
dc.identifier.urihttp://hdl.handle.net/2117/370143
dc.description.abstractThe objective of this paper is to apply a closed-loop control based on dielectric excitation to MOX gas sensors in order to improve their response time. The control implements a feedback loop in which temperature modulations keep constant the sensor reactance, measured at constant temperature. The required fast temperature switching has been implemented on MEMS microhotplates. The mean temperature generated by the control is the new output signal. This technique is applied to an in-house sensor made of WO3 nanowires decorated with gold nanoparticles to detect NH3 and to a commercial MEMS MOX sensor (CCS801).
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura::Sensors i actuadors
dc.subject.lcshGas detectors
dc.subject.lcshChemical detectors
dc.subject.otherGas sensor
dc.subject.otherControl Metal oxide
dc.subject.otherDielectric excitation
dc.titleAcceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation
dc.typeArticle
dc.subject.lemacDetectors de gasos
dc.subject.lemacSensors químics
dc.contributor.groupUniversitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies
dc.identifier.doi10.1016/j.snb.2022.131940
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0925400522005822
dc.rights.accessOpen Access
local.identifier.drac33741322
dc.description.versionPostprint (author's final draft)
local.citation.authorSolà, N.; Manyosa i, X.; Navarrete, E.; Ramos, J.; Jimenez, V.; Bermejo, S.; García, I.; Llobet, E.; Dominguez, M.
local.citation.publicationNameSensors and Actuators B: Chemical
local.citation.volume365
local.citation.numberArticle 131940


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