Exploració per tema "Chemical detectors"
Ara es mostren els items 1-20 de 24
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A method to build unique calibration models for batches of chemical sensor arrays
(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
(2018-06-12)
Article
Accés obertA 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
(2022-08-15)
Article
Accés restringit per política de l'editorialThe 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
(2016-01-21)
Article
Accés obertThe 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
(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
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-26)
Article
Accés obert -
Calibration transfer and drift counteraction in chemical sensor arrays using direct standardization
(2016-05-18)
Article
Accés obertInherent 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
(Elsevier, 2015-06-30)
Article
Accés obertRecent 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
(Universitat Politècnica de Catalunya, 2019-07-08)
Treball Final de Grau
Accés restringit per decisió de l'autorSoft 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.
(Universitat Politècnica de Catalunya, 2022-10-26)
Treball Final de Grau
Accés restringit per acord de confidencialitatThe 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
(Universitat Politècnica de Catalunya, 2008-05)
Projecte/Treball Final de Carrera
Accés obertEn 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
(Elsevier, 2022-06)
Article
Accés obertMetal 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
(Multidisciplinary Digital Publishing Institute (MDPI), 2017)
Text en actes de congrés
Accés obertChemical 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
(2016)
Text en actes de congrés
Accés obertThe 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 ... -
Microfluidics and electrochemical sensors for sweat monitoring: paper-based chemiresistor sensor for sweat volume monitoring
(2023-05-17)
Comunicació de congrés
Accés obert -
Multilayer ISFET membranes for microsystems applications
(1996-09-01)
Article
Accés restringit per política de l'editorialThe 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
(Universitat Politècnica de Catalunya / École Nationale Supérieure de Mécanique et des Microtechniques de Besançon, 2013)
Treball Final de Grau
Accés obertVanadium 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
(2016-07-15)
Article
Accés obertA 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
(Royal Society of Chemistry (RSC), 2018-09-07)
Article
Accés obertPolymeric 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
(Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
Article
Accés obertMetal 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 ...