Recent Submissions

  • Acceleration of the measurement time of thermopiles using sigma-delta control 

    Domínguez Pumar, Manuel; perez, eduard; Ramon, Marina; Jiménez Serres, Vicente; Bermejo Broto, Sandra; Pons Nin, Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-18)
    Article
    Open Access
    This work presents a double sliding mode control designed for accelerating the measurement of heat fluxes using thermopiles. The slow transient response generated in the thermopile, when it is placed in contact with the ...
  • Voltage divider for self-limited analog state programing of memristors 

    Gomez, Jorge; Vourkas, Ioannis; Abusleme, Angel; Sirakoulis, Georgios; Rubio Sola, Jose Antonio (2019-06-19)
    Article
    Open Access
    Resistive switching devices - memristors - present a tunable, incremental switching behavior. Tuning their state accurately, repeatedly and in a wide range, makes memristors well-suited for multi-level (ML) resistive memory ...
  • A mixed-signal control system for Lorentz-force resonant MEMS magnetometers 

    Sánchez Chiva, José María; Valle Fraga, Juan José; Fernández, Daniel; Madrenas Boadas, Jordi (2019-09-01)
    Article
    Open Access
    This paper presents a mixed-signal closed-loop control system for Lorentz force resonant MEMS magnetometers. The control system contributes to 1) the automatic phase control of the loop, that allows start-up and keeps ...
  • Load shedding scheme with under-frequency and undervoltage corrective actions to supply high priority loads in islanded microgrids 

    Nascimento, Bruno de Nadai; Zambroni de Souza, Antonio Carlos; de Carvalho Costa, Joao Guilherme; Castilla Fernández, Miguel (2019-08-19)
    Article
    Open Access
    In the last few years, microgrids have become a potential solution to improve reliability and security in the supply of electricity to power systems. When a microgrid changes its operation mode from grid-connected to ...
  • State of charge dependency of the overvoltage generated in commercial Li-ion cells 

    Ovejas Benedicto, Victòria Júlia; Cuadras Tomàs, Àngel (2019-04-01)
    Article
    Restricted access - publisher's policy
    The overvoltage that is produced in the cells under operation limits the capacity and power they can deliver. A detailed study about the mechanisms that contribute to that overvoltage—and thus to their lifetime—is required ...
  • Seat occupancy detection based on a low-power microcontroller and a single FSR 

    Sifuentes, Ernesto; González Landaeta, Rafael; Cota Ruiz, Juan; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-08)
    Article
    Open Access
    This paper proposes a microcontroller-based measurement system to detect and confirm the presence of a subject in a chair. The system relies on a single Force Sensing Resistor (FSR), which is arranged in the seat of the ...
  • Temperature stability in the sub-milliHertz band with LISA Pathfinder 

    Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Ramos Castro, Juan José (Oxford University Press, 2019-07-01)
    Article
    Open Access
    LISA Pathfinder (LPF) was a technology pioneering mission designed to test key technologies required for gravitational wave detection in space. In the low frequency regime (milliHertz and below), where space-based gravitational ...
  • Embroidered electrodes for bioelectrical impedance analysis: impact of surface area and stitch parameters 

    Logothetis, Irini; Fernández García, Raúl; Troynikov, Olga; Dabnichki, Peter; Pirogova, Elena; Gil Galí, Ignacio (2019-07-15)
    Article
    Restricted access - publisher's policy
    A non-intrusive particle sizing method with a high spatial distribution is used to estimate cloud droplet spectra during flight test campaigns. The interferometric laser imaging for droplet sizing (ILIDS) method derives ...
  • LISA pathfinder micronewton cold gas thrusters: in-flight characterization 

    Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Ramos Castro, Juan José (American Physical Society (APS), 2019-06-28)
    Article
    Open Access
    The LISA Pathfinder (LPF) mission has demonstrated the ability to limit and measure the fluctuations in acceleration between two free falling test masses down to sub-femto-g levels. One of the key elements to achieve such ...
  • Multiple-fault detection and identification scheme based on hierarchical self-organizing maps applied to an electric machine 

    Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Romero Troncoso, René; Osornio Rios, Roque A. (2019-08-01)
    Article
    Restricted access - publisher's policy
    Strategies of condition monitoring applied to electric motors play an important role in the competitiveness of multiple industrial sectors. However, the risk of faults coexistence in an electric motor and the overlapping ...
  • Data analytics for performance evaluation under uncertainties applied to an industrial refrigeration plant 

    Cirera Balcells, Josep; Cariño Corrales, Jesús Adolfo; Zurita Millán, Daniel; Ortega Redondo, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Open Access
    Artificial intelligence has bounced into industrial applications contributing several advantages to the field and have led to the possibility to open new ways to solve many actual problems. In this paper, a data-driven ...
  • Fuzzy logic controller parameter optimization using metaheuristic Cuckoo search algorithm for a magnetic levitation system 

    García-Gutiérrez, Gabriel; Arcos Aviles, Diego Gustavo; Carrera, Enrique; Guinjoan Gispert, Francisco; Motoasca, Emilia; Ayala, Paul; Ibarra, Alexander (Multidisciplinary Digital Publishing Institute, 2019-06-16)
    Article
    Open Access
    The main benefits of fuzzy logic control (FLC) allow a qualitative knowledge of the desired system’s behavior to be included as IF-THEN linguistic rules for the control of dynamical systems where either an analytic model ...

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