Browsing by Subject "Electromagnetic fields"
Now showing items 1-20 of 37
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Adaptive hysteresis band current control for transformerless single-phase PV inverters
(2009)
Conference report
Open AccessCurrent control based on hysteresis algorithms are widely used in different applications, such as motion control, active filtering or active/reactive power delivery control in distributed generation systems. The hysteresis ... -
Algoritmo de detección de visibilidad de facetas para el cálculo de la Sección Recta Radar
(Universitat Politècnica de Catalunya, 2013-06-17)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] In this project, a new algorithm for computing the Physical Optics of a radar target has been developed to be implementated in GRECO. This is a software package for calculating the Radar Cross Section. It includes ... -
Aliasing of the Schumann resonance background signal by sprite-associated Q-bursts
(2017-12)
Article
Open AccessThe Earth's naturally occurring Schumann resonances (SR) are composed of a quasi-continuous background component and a larger-amplitude, short-duration transient component, otherwise called ‘Q-burst’ (Ogawa et al., 1967). ... -
Analysis of multireflector antenna clusters by spectral methods
(Institute of Electrical and Electronics Engineers (IEEE), 1994)
Conference report
Open AccessThis paper analyzes multireflector antennas making use of spectral domain techniques. The behaviour of the multireflector antenna is determined by means of a transference function that relates the plane wave spectrum of ... -
Cálculo del campo difractado por objetos cilíndricos metálicos o multidieléctricos al incidir sobre ellos una onda
(Consejo Superior de Investigaciones Científicas (CSIC), 1986)
Conference report
Open AccessA method is described for calculating the scattered fields from conducting bodies and concentric multilayered cylinders, when they are illuminated by a wave with no z-axis variation. The method is based upon descomposition ... -
Circuital analysis of a two-port angular sector
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Conference report
Open AccessThe authors introduce an element that allows them to analyze two-dimensional diffraction problems in a circuital way. The circuital analysis of electromagnetic problems, together to the segmentation technique, allows one ... -
Closed-loop control of magnetic fields for atomic physics experiments
(Universitat Politècnica de Catalunya, 2017-09-08)
Master thesis
Open AccessThis project explores the control of magnetic fields through active feedback, ultimately bringing the magnetic field noise level below the required threshold, for one single axis. An absolute stability of less than 400 uG ... -
Conductive plate to improve the protection of the building’s occupants from radiation and environmental electromagnetic fields
(2017)
Conference lecture
Restricted access - publisher's policyThe current buildings have problems that affect the health of the occupants. Inside there are electromagnetic fields produced by the network cabling, microwave fields of the WI-FI, fields produced by terrestrial storms, ... -
Desarrollo software e integración de un subsistema de medidas magnéticas para cubesat
(Universitat Politècnica de Catalunya, 2015-07)
Bachelor thesis
Open AccessThe purpose of this project consists on the integration of a measuring subsystem for a cubesat payload in which involves the development of the circuit control software, the flight model physical implementation as well as ... -
Desenvolupament d'un sistema de control per assaigs de Compatibilitat Electromagnètica: Immunitat radiada i conduïda
(Universitat Politècnica de Catalunya, 2020-05)
Bachelor thesis
Open AccessEach electronic device with commercial purposes within the European Union shall declare the EMC normative compliance. One the requirements consists on assuring that the device continues operating as intended when electromagnetic ... -
Design and construction of a 3D Helmholtz coil system for the ALBA magnetic measurements laboratory
(Universitat Politècnica de Catalunya, 2019-06)
Bachelor thesis
Open Access
Covenantee: Sincrotró ALBA3D Hall probes designed and produced by ALBA Synchrotron are currently being used at ALBA magnetic measurements laboratory to carry out accurate magnetic characterization of magnets and insertion devices. In order to ... -
Design of planar probes for stent monitoring
(Universitat Politècnica de Catalunya, 2016-07-28)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Detector de capacidad parásita sonoro
(Universitat Politècnica de Catalunya, 2016)
Master thesis (pre-Bologna period)
Open Access -
Una década de teledetección en el Grupo de Ingeniería Electromagnética y Fotónica
(2003-04-30)
Article
Open Access -
Disseny i construcció de bobines de mida arbitrària de camp magnètic conformable
(Universitat Politècnica de Catalunya, 2010)
Master thesis (pre-Bologna period)
Open AccessEn aquest projecte es desenvolupen metodes per conformar un camp magnètic dins l'interior de bobines de mida arbitrària. Aplicació a la mesura de la concentració de provetes de formigó refoçades amb fibres d'acer. -
Electromagnetic radiation of simulated mid-gap streamers
(Zakon Group, 2016)
Conference report
Open AccessElectromagnetic field from simulated double-headed mid-gap streamers is computed. The effect of the applied electric field is studied by considering electric fields higher than the conventional breakdown threshold ... -
Estudi i disseny de detector de camp electromagnètic wearable
(Universitat Politècnica de Catalunya, 2019-06-10)
Bachelor thesis
Open AccessEs desenvoluparà el disseny i estudi d'un detector de camp electromagnètic totalment integrat en roba mitjançant plataforma Adafruit i antena bordada -
Full wave analysis of the image hybrid dielectric/HTS resonator
(Institution of Electrical Engineers, 1997-06)
Article
Open AccessAn analysis of the image hybrid dielectric/HTS resonator is carried out. A full-wave radial mode-matching method is used to obtain the electromagnetic fields inside the resonator for single TE01 and dual HE11 modes. The ... -
Generalization of the equivalence between physical optics and aperture integration for radiation from open-ended structures
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-06-30)
Article
Open AccessThe theorem of equivalence between the Kirchhoff aperture integration (AI) and the physical optics (PO) approach applied to the interior walls of a open-ended waveguide is generalized to the case of any open-ended structure (OES). -
Infrared thermograms applied to near-field testing
(IEE-INST ELEC ENG, 1999-05-31)
Article
Open AccessElectromagnetic fields close to radiant structures can be measured quickly using an infrared camera. Examples of induced fields by wire antennas over a detection screen at distances shorter than one wavelength are presented. ...