Browsing by Subject "Elèctrodes"
Now showing items 1-20 of 62
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A comprehensive model for power line interference in biopotential measurements
(Institute of Electrical and Electronics Engineers, 2000-06-30)
Article
Open AccessPower line interference is a major problem in high-resolution biopotential measurements. Because interference coupling is mostly capacitive, shielding electrode leads and a high common-mode rejection ratio (CMRR) are ... -
A fast method to estimate body capacitance to ground at mid frequencies
(University of Oslo, 2015-12-18)
Article
Open AccessImpedance measurements that involve the human body are affected by the capacitance between the body and earth ground. This paper describes a fast method to estimate that apacitance at 10 kHz, which is valid for impedance ... -
A model to explain the TSDC spectrum of XLPE insulation in mid voltage cables based on a virtual electrode
(2007)
Conference lecture
Open AccessThe analysis by TSDC of a large variety of cables subjected to long annealing times, has resulted in spectra that sometimes show an oscillation of the current peak observed at 99°C. This process has been observed in some ... -
A novel fully differential biopotential amplifier with DC suppression
(Institute of Electrical and Electronics Engineers, 2004-08)
Article
Open AccessFully differential amplifiers yield large differential gains and also high common mode rejection ratio (CMRR), provided they do not include any unmatched grounded component. In biopotential measurements, however, the ... -
A practical approach to electrode-skin impedance unbalance measurement
(Institute of Electrical and Electronics Engineers, 2006-07)
Article
Open AccessUnbalance between electrode-skin impedances is a major problem in biopotential recordings, leading to increased power-line interference. This paper proposes a simple, direct method to measure that unbalance at power-line ... -
AC-coupled front-end for biopotential measurements
(Institute of Electrical and Electronics Engineers, 2003-03)
Article
Open AccessAC coupling is essential in biopotential measurements. Electrode offset potentials can be several orders of magnitude larger than the amplitudes of the biological signals of interest, thus limiting the admissible gain of ... -
Analysis of capacitance to ground formulas for different high-voltage electrodes
(2018-01-01)
Article
Open AccessStray capacitance can seriously affect the behavior of high-voltage devices, including voltage dividers, insulator strings, modular power supplies, or measuring instruments, among others. Therefore its effects must be ... -
Analysis of electrode arrays for multichannel surface electromyography
(Universitat Politècnica de Catalunya, 2019-05)
Master thesis
Open AccessNowadays medical evaluation requires in each further step improvements in all the areas concerning engineering and materials. This applies to the application of electromyography and in specific to surface electromyography ... -
Broadening of neutral analyte band in electroosmotic flow through slit channel with different zeta potentials of the walls
(2013-07)
Article
Restricted access - publisher's policyThe study is concerned with addressing hydrodynamic dispersion of an electroneutral non-adsorbed solute being transported by electroosmotic flow through a slit channel formed by walls with different zeta potentials. The ... -
Carbon-paste nanocomposites as unconventional gate electrodes for electrolyte-gated organic field-effect transistors: electrical modulation and bio-sensing
(Royal Society of Chemistry (RSC), 2019-11-11)
Article
Open AccessNanocomposite carbon-paste electrodes (NC-CPEs) have been investigated for the first time in electrolytegated organic field-e¿ect transistors (EGOFETs) as a replacement of conventional metal gate electrodes, using carbon ... -
Càlcul de posades a terra en suports de línies d'alta tensió
(Universitat Politècnica de Catalunya, 2022-06-22)
Bachelor thesis
Open AccessEs realitza un estudi teòric sobre què són les posades a terra i com són aquestes en els suports de les línies aèries d’alta tensió, analitzant els principals aspectes normatius que afecten a les instal·lacions presents a ... -
Comments on “A novel high input impedance front-end for capacitive biopotential measurement”
(Springer, 2019-12-13)
Article
Open AccessA front-end for biopotential sensing in wearable medical devices has been recently proposed which is claimed to provide 100 GOinput impedance by manually matching two resistor pairs in a positive- and a negative-feedback ... -
Commercial cuttlefish exposed to noise from offshore windmill construction show short-range acoustic trauma
(2022-11)
Article
Open AccessThe installation of marine renewable energy devices (MREDs, wind turbines and converters of wave, tidal and ocean thermal energy) has increased quickly in the last decade. There is a lack of knowledge concerning the effects ... -
Comparison of silver-plated nylon (Ag/PA66) e-textile and Ag/AgCl electrodes for bioelectrical impedance analysis (BIA)
(Institute of Physics (IOP), 2021-05-01)
Article
Open AccessRecently, researchers have adapted Bioelectrical Impedance Analysis (BIA) as a new approach to objectively monitor wounds. They have indicated various BIA parameters associated to specific wound types can be linked to wound ... -
Consideraciones sobre la denominación de los electrodos para señales bioeléctricas externas
(2012)
Conference lecture
Open Access -
Construcción de un film polimérico basado en ácido poliglutámico y nanopartículas de polímeros conductores para la obtención de sensores electroquímicos
(Universitat Politècnica de Catalunya, 2018-07-02)
Bachelor thesis
Open AccessEn este trabajo se preparó un electrodo biocompatible, electroactivo y flexible a partir de una matriz de bio-hidrogel, el ácido ɣ-poliglutámico (ɣ-PGA), y nanopartículas de poli 3,4-etilendioxitiofeno) (PEDOT), un ... -
Contribution to liquid lens technology
(Universitat Politècnica de Catalunya, 2016-07-20)
Doctoral thesis
Open AccessThe interest on microfluidic systems based on electrowetting-on-dielectric (EWOD) and the miniaturization of such integrated devices, has increased significantly mainly due to the advent of mass market applications such ... -
Design and fabrication of a dry eeg electrode
(Universitat Politècnica de Catalunya, 2019-07-31)
Bachelor thesis
Restricted access - author's decision
Covenantee: Institut national des sciences appliquées de LyonNowadays EEG signal is the most utilized non-invasive brain data acquisition, because of its portability, low cost in relation with other techniques and ease to obtain brain waves. In order to obtain this signal, electrodes ... -
Design and implementation of an organic semi-transparent photovoltaic device
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Open AccessOrganic polymeric solar cells require thin absorber layers due to intrinsic low exciton diffusion distances, thus showing low absorption of light. They are also characterized by having a low absorption peak, whose position ... -
Design and measurement of cost-balanced and electronic-efficient embroidered textile electrodes
(2024)
Article
Open AccessIn this work, different textile electrodes are assessed and a novel measurement system for their characterization is presented. Those electrodes are made of a paraffin-coated conductive yarn embroidered into a textile ...
