Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

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

  • Identification data

    Identifier: imarina:9262251
    Authors:
    Sola-Penaftel, NManyosa, XNavarrete, ERamos-Castro, JJimenez, VBermejo, SGracia, ILlobet, EDominguez-Pumar, M
    Abstract:
    The 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).
  • Others:

    Author, as appears in the article.: Sola-Penaftel, N; Manyosa, X; Navarrete, E; Ramos-Castro, J; Jimenez, V; Bermejo, S; Gracia, I; Llobet, E; Dominguez-Pumar, M
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Llobet Valero, Eduard / Navarrete Gatell, Èric
    Keywords: Quantitative-analysis Metal oxide Gas sensor Dielectric excitation Control metal oxide dielectric excitation control arrays ammonia
    Abstract: The 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).
    Thematic Areas: Surfaces, coatings and films Spectroscopy Química Odontología Nutrição Metals and alloys Medicina ii Medicina i Materials chemistry Materiais Interdisciplinar Instruments & instrumentation Instrumentation Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Electronic, optical and magnetic materials Electrochemistry Electrical and electronic engineering Educação física Educação Economia Condensed matter physics Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Astronomia / física Analytical chemistry
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: eric.navarrete@urv.cat eric.navarrete@urv.cat eduard.llobet@urv.cat
    Author identifier: 0000-0001-6164-4342
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0925400522005822
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Sensors And Actuators B-Chemical. 365 131940-
    APA: Sola-Penaftel, N; Manyosa, X; Navarrete, E; Ramos-Castro, J; Jimenez, V; Bermejo, S; Gracia, I; Llobet, E; Dominguez-Pumar, M (2022). Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation. Sensors And Actuators B-Chemical, 365(), 131940-. DOI: 10.1016/j.snb.2022.131940
    Article's DOI: 10.1016/j.snb.2022.131940
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Chemistry, Analytical,Condensed Matter Physics,Electrical and Electronic Engineering,Electrochemistry,Electronic, Optical and Magnetic Materials,Instrumentation,Instruments & Instrumentation,Materials Chemistry,Metals and Alloys,Surfaces, Coatings and Films
    Quantitative-analysis
    Metal oxide
    Gas sensor
    Dielectric excitation
    Control
    metal oxide
    dielectric excitation
    control
    arrays
    ammonia
    Surfaces, coatings and films
    Spectroscopy
    Química
    Odontología
    Nutrição
    Metals and alloys
    Medicina ii
    Medicina i
    Materials chemistry
    Materiais
    Interdisciplinar
    Instruments & instrumentation
    Instrumentation
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Electronic, optical and magnetic materials
    Electrochemistry
    Electrical and electronic engineering
    Educação física
    Educação
    Economia
    Condensed matter physics
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Ciência da computação
    Chemistry, analytical
    Biotecnología
    Biodiversidade
    Astronomia / física
    Analytical chemistry
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