GRUP ISI - Grup d'Instrumentació, sensors i interfícies
Recerca de nous sensors i de mètodes de mesura basats en variacions d'impedància elèctrica i de les interfícies electròniques per al condicionament i el processament dels senyals, amb èmfasi en macrosensors basats en tecnologies de baix cost, sensors autònoms i intel·ligents, xarxes de sensors, processament analògic dels senyals, sistemes d'adquisició de dades, espectroscòpia i tomografia d'impedància elèctrica,reducció d'interferències i soroll a la instrumentació, mesura de paràmetres fisiològics amb mètodes no invasors i biotelemetria. Transferència de tecnologia en sensors i sistemes de mesura per a enginyeria.
Colecciones
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Altres [6]
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Articles de recerca [52]
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Llibres [1]
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Patents [0]
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Presentacions [1]
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Working papers [1]
Envíos recientes
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Biosensors for m-health
(2017-06-14)
Presentación
Acceso abierto -
Multisensor system for analyzing the thigh movement during walking
(2017-08-01)
Artículo
Acceso abiertoBody movements monitoring may allow preventing, diagnosing, and recovering several wrong attitudes that could lead to possible future diseases. A multisensor system was developed to measure thigh movements in free-living ... -
A novel algorithm for fast BCG cycle extraction in ambulatory scenarios
(2016)
Comunicación de congreso
Acceso restringido por política de la editorialA novel algorithm JDet for ballistocardiogram (BCG) cycle extraction is presented that is intended for the fast generation of ensemble averages in ambulatory scenarios where the ECG signal is not available. First, the ... -
Impact of the mechanical interface on BCG signals obtained from electronic weighing scales
(2016)
Texto en actas de congreso
Acceso restringido por política de la editorialThis work analyzes the reproducibility of the BCG obtained from different weighing scales. First, the natural frequency of three commercial bathroom scales has been characterized by an impulse excitation test. Second, the ... -
Direct pulse transit time measurement from an electronic weighing scale
(2016)
Texto en actas de congreso
Acceso restringido por política de la editorialA novel method to measure Pulse Transit Time (PTT) from the force sensors of a modified electronic weighing scale is presented. The method relies on the relation between PTT and the interval between I and J waves of the ... -
On the feasibility of noncontact ECG measurements
(2016-03-01)
Artículo
Acceso abiertoThe article by Kranjec et al. [1], “Novel methods of noncontact heart rate measurement: A feasibility study” is interesting and informative as it compares different contactless methods for heart rate detection. Nevertheless, ... -
The QT scale: a weight scale measuring the QTc interval
(Wiley, 2017-01)
Artículo
Acceso abiertoDespite the strong evidence of the clinical utility of QTc prolongation as a surrogate marker of cardiac risk, QTc measurement is not part of clinical routine either in hospital or in physician of fi ces. We evaluated ... -
On bio activity related signals from contactless electrode measurements
(2016-02-01)
Artículo
Acceso abiertoIn a recent paper on a displacement current sensor for contactless detection of bio-activity related signals [1], it was stated that “A potential means for human presence detection…is via sensing…human biopotentials” ... -
Enabling atrial fibrillation detection using a weight scale
(2016)
Comunicación de congreso
Acceso restringido por política de la editorialAtrial fibrillation (AF) is a cardiac arrhythmia characterized by a highly irregular heart rate. It is the most prevalent arrhythmia in the general population in the United States and most developed countries, and ... -
Online cellphone battery entropy measurement for SoH estimation
(2016)
Texto en actas de congreso
Acceso restringido por política de la editorialThe widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are ... -
Low-power direct resistive sensor-to-microcontroller interfaces
(2016-01-01)
Artículo
Acceso abiertoThis paper analyzes the energy consumption of direct interface circuits where the data conversion of a resistive sensor is performed by a direct connection to a set of digital ports of a microcontroller (µC). The causes ... -
Entropy characterisation of overstressed capacitors for lifetime prediction
(2016-12-30)
Artículo
Acceso restringido por política de la editorialWe propose a method to monitor the ageing and damage of capacitors based on their irreversible entropy generation rate. We overstressed several electrolytic capacitors in the range of 33 µF–100 µF and monitored their entropy ...