Exploració per tema "Electrodes"
Ara es mostren els items 1-20 de 65
-
A comprehensive model for power line interference in biopotential measurements
(Institute of Electrical and Electronics Engineers, 2000-06-30)
Article
Accés obertPower 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
Accés obertImpedance 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)
Comunicació de congrés
Accés obertThe 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
Accés obertFully 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
Accés obertUnbalance 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
Accés obertAC 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
Accés obertStray 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)
Projecte Final de Màster Oficial
Accés obertNowadays 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 ... -
Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Comunicació de congrés
Accés obertBioimpedance is known for its linear relation with volume during normal breathing. For that reason, bioimpedance can be used as a noninvasive and comfortable technique for measuring respiration. The goal of this study is ... -
Comments on “A novel high input impedance front-end for capacitive biopotential measurement”
(Springer, 2019-12-13)
Article
Accés obertA 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 ... -
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
Accés obertRecently, 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)
Comunicació de congrés
Accés obert -
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)
Treball Final de Grau
Accés obertEn 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 ... -
Design and fabrication of a dry eeg electrode
(Universitat Politècnica de Catalunya, 2019-07-31)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: 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)
Treball Final de Grau
Accés obertOrganic 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
Accés obertIn 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 ... -
Detection of movements with attention or distraction to the motor task during robot-assisted passive movements of the upper limb
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialRobot-assisted rehabilitation therapies usually focus on physical aspects rather than on cognitive factors. However, cognitive aspects such as attention, motivation, and engagement play a critical role in motor learning ... -
Development and impedimetric evaluation of a magnetic interdigitated microelectrode
(2014-11-01)
Article
Accés restringit per política de l'editorialA magnetic interdigitated microelectrode (m-ID mu E) has been developed, characterized and evaluated. In order to demonstrate the potential use of these electrodes in the biosensors field, impedimetric measurements of ... -
Direct pulse transit time measurement from an electronic weighing scale
(2016)
Text en actes de congrés
Accés restringit per política de l'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 ... -
Diseño de un cambiador de electrodos de una pinza de soldadura móvil
(Universitat Politècnica de Catalunya, 2017-05-21)
Treball Final de Grau
Accés restringit per decisió de l'autorEl objetivo de este proyecto es el de diseñar la parte mecánica de un cambiador de electrodos automático, donde un robot de 6 ejes dotado de una pinza de soldadura móvil, pueda intercambiar los electrodos utilitzados en ...
