Ara es mostren els items 1-20 de 24

    • A method to build unique calibration models for batches of chemical sensor arrays 

      Fonollosa Magrinyà, Jordi; Rodriguez-Perez, Raquel; Solórzano, Ana; Padilla, Marta; Graunke, Thorsten; Marco, Santiago (2016)
      Text en actes de congrés
      Accés obert
    • A practical method to estimate the resolving power of a chemical sensor array: application to feature selection 

      Fernández Romero, Lluís; Yan, Jia; Fonollosa Magrinyà, Jordi; Burgués, Javier; Gutierrez Galvez, Agustín; Marco Colás, Santiago (2018-06-12)
      Article
      Accés obert
      A methodology to calculate analytical figures of merit is not well established for detection systems that are based on sensor arrays with low sensor selectivity. In this work, we present a practical approach to estimate ...
    • Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation 

      Solà Peñafiel, Nil; Manyosa i Vilardell, Xavier; Navarrete Gatell, Eric; Ramos Castro, Juan José; Jiménez Serres, Vicente; Bermejo Broto, Sandra; García, Isabel; Llobet Valero, Eduard; Domínguez Pumar, Manuel (2022-08-15)
      Article
      Accés restringit per política de l'editorial
      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 ...
    • Active control of the surface potential of nanostructured layers 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Llobet, E.; Calavia, Raül (2016-01-21)
      Article
      Accés obert
      The objective of this letter is to show the first results obtained with a control designed to keep the average surface potential of a nanostructured layerconstant. This condition is equivalent to keeping constant the ...
    • Analysis of the dynamics of an active control of the surface potential in metal oxide gas sensors 

      Monge Villora, Oscar; Domínguez Pumar, Manuel; Olm Miras, Josep Maria (Pergamon Press, 2018-05-08)
      Article
      Accés obert
    • Application of an array of metal-oxide semiconductor gas sensors in an assistant personal robot for early gas leak detection 

      Palacín Roca, Jordi; Martínez Ortín, David; Clotet Bellmunt, Eduard; Pallejà Cabré, Tomàs; Burgués Calderón, Javier; Fonollosa Magrinyà, Jordi; Pardo, Antonio; Marco, Santiago (Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-26)
      Article
      Accés obert
    • Calibration transfer and drift counteraction in chemical sensor arrays using direct standardization 

      Fonollosa Magrinyà, Jordi; Fernandez, Luis; Gutiérrez-Gálvez, Agustín; Huerta, Ramon; Marco, Santiago (2016-05-18)
      Article
      Accés obert
      Inherent variability of chemical sensors makes it necessary to calibrate chemical detection systems individually. This shortcoming has traditionally limited usability of systems based on metal oxide gas sensor arrays and ...
    • Data set from gas sensor array under flow modulation 

      Ziyatdinov, Andrey; Fonollosa, Jordi; Fernández Romero, Lluís; Gutierrez Galvez, Agustín; Marco Colás, Santiago; Perera Lluna, Alexandre (Elsevier, 2015-06-30)
      Article
      Accés obert
      Recent studies in neuroscience suggest that sniffing, namely sampling odors actively, plays an important role in olfactory system, especially in certain scenarios such as novel odorant detection. While the computational ...
    • Data-driven soft sensor development for a dividing wall distillation column 

      Ceruti, Amedeo Paolo (Universitat Politècnica de Catalunya, 2019-07-08)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Soft sensors have increasingly gained attention in the chemical industry in recent years. In this work, a data-based soft sensor for on-line continuous distillate composition prediction of a dividing wall column is developed. ...
    • Desenvolupament d'un sensor ceràmic intel·ligent per a la detecció i eliminació de microplàstics. 

      Del Río Bonnin, Laura (Universitat Politècnica de Catalunya, 2022-10-26)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
      The current socio-environmental and health problems that have arisen from the research of the presence of microplastics in the human body expose the need not only to reduce the use of plastics but to eliminate those that ...
    • Disseny d’una instal·lació de climatització, elèctrica i de control per a cabines experimentals d’olors 

      López Agustí, Héctor (Universitat Politècnica de Catalunya, 2008-05)
      Projecte/Treball Final de Carrera
      Accés obert
      En aquest projecte es proposa el disseny d’una instal·lació de climatització amb el seu control i la seva pròpia instal·lació elèctrica per a un conjunt de cabines experimentals. Aquestes cabines tenen la funció de servir ...
    • Drift in a popular metal oxide sensor dataset reveals limitations for gas classification benchmarks 

      Dennler, Nik; Rastogi, Shavika; Fonollosa Magrinyà, Jordi; van Schaik, Andre; Schmuker, Michael (Elsevier, 2022-06)
      Article
      Accés obert
      Metal oxide (MOx) gas sensors are a popular choice for many applications, due to their tunable sensitivity, space efficiency and low cost. Publicly available sensor datasets are particularly valuable for the research ...
    • Improving calibration of chemical gas sensors for fire detection using small scale setups 

      Solórzano, Ana; Fonollosa Magrinyà, Jordi; Marco, Santiago (Multidisciplinary Digital Publishing Institute (MDPI), 2017)
      Text en actes de congrés
      Accés obert
      Chemical sensing may be better suited than conventional smoke-based detectors for the detection of certain type of fires, in particular in fires where smoke appears after gas emissions. However, chemical-based systems also ...
    • Machine learning methods in electronic nose analysis 

      Rodriguez Lujan, Irene; Fonollosa Magrinyà, Jordi; Huerta, Ramon (2016)
      Text en actes de congrés
      Accés obert
      The main existent tool to monitor chemical environ- ments in a continuous mode is gas sensor arrays, which have been popularized as electronic noses (enoses). To design and validate these monitoring systems, it ...
    • Multilayer ISFET membranes for microsystems applications 

      Cané, Carles; Götz, A.; Merlos, A.; Gràcia, I.; Errachid, Abdelhamid; Losantos Viñolas, Pedro; Lora-Tamayo, E. (1996-09-01)
      Article
      Accés restringit per política de l'editorial
      The fabrication of microsystems in which chemical measurements play a role make the on-chip combination of chemical sensors and signal processing circuitry highly desirable. Chemical sensors use sensitive layers which are ...
    • Nano-structured vanadium oxide thin films for gas sensors 

      Collado Ciprés, Verónica (Universitat Politècnica de Catalunya / École Nationale Supérieure de Mécanique et des Microtechniques de Besançon, 2013)
      Treball Final de Grau
      Accés obert
      Vanadium thin films are prepared by DC magnetron sputtering using the GLancing Angle Deposition (GLAD) method. This technique will allow the growth of porous nano-structures with inclined columns, as well as zig-zags and ...
    • Online decorrelation of humidity and temperature in chemical sensors for continuous monitoring 

      Huerta, Ramon; Mosqueiro, Thiago; Fonollosa Magrinyà, Jordi; Rulkov, Nikolai; Rodriguez Lujan, Irene (2016-07-15)
      Article
      Accés obert
      A method for online decorrelation of chemical sensor signals from the effects of environmental humidity and temperature variations is proposed. The goal is to improve the accuracy of electronic nose measurements for ...
    • Plasma surface modification of polymers for sensor applications 

      Alemán Llansó, Carlos; Fabregat Jové, Georgina; Armelín Diggroc, Elaine Aparecida; Buendía Morales, Jorge Juan; Llorca Piqué, Jordi (Royal Society of Chemistry (RSC), 2018-09-07)
      Article
      Accés obert
      Polymeric sensors play an increasingly important role in monitoring the environment we live in, providing relevant information for a host of applications. Among them, significant efforts have been made to fabricate polymeric ...
    • Pulsed-temperature metal oxide gas sensors for microwatt power consumption 

      Palacio Bonet, Francisco; Fonollosa Magrinyà, Jordi; Burgués Illa, Xavier; Gómez Cama, José Mª; Marco Colás, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
      Article
      Accés obert
      Metal Oxide (MOX) gas sensors rely on chemical reactions that occur efficiently at high temperatures, resulting in too-demanding power requirements for certain applications. Operating the sensor under a Pulsed-Temperature ...