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Listar por palabra clave "High frequency"

Mostrando ítems 1-9 de 9

Diseño de un transformador (frecuencia 100 kHz, tensiones pico 350/48 V, potencia 500 W, tensión de aislamiento 10 kV) para un convertidor dc-dc phase shift full bridge zero voltage switch

Pastor Grau, Federico (Universitat Politècnica de València, 2022-11-09)

[ES] En este trabajo final de máster se diseña un transformador de alta frecuencia (100 kHz) con una tensión de alimentación con forma rectangular con tiempos de tensión cero. Para ello, se comienza comprendiendo el ...
Grounding system impedance characterization using FEM

Bueno Barrachina, José Manuel; Catalán Izquierdo, Saturnino; Cañas Peñuelas, César Santiago (European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ), 2011)

The exact knowledge of the grounding system impedance, including its expected variability, is a matter of paramount importance in the design of medium and high voltage infrastructures. The principles underlining the physical ...
High Frequency (100, 150 MHz) Quartz Crystal Microbalance (QCM) Piezoelectric Genosensor for the Determination of the Escherichia coli O157 rfbE Gene

Barrientos, Kaory; ROCHA GASO, MARÍA ISABEL; Jaramillo, Marisol; Aldrín Vásquez, Neil (Taylor & Francis, 2022-09-13)

[EN] Escherichia coli O157 (E. coli O157) is responsible for outbreaks of high morbidity in food-borne infections. The development of sensitive, reliable, and selective detection systems is of great importance in food ...
High Performance Broadband Capacitive Coupler for Partial Discharge Cable Tests

Rodrigo Mor, Armando; Llovera Segovia, Pedro; Fuster Roig, Vicente Luis; Quijano Lopez, Alfredo (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)

[EN] Partial discharge (PD) cable field tests require the use of high frequency sensors coupled to the cable for PD apparent charge evaluation. PD sensors can be coupled to the cable by magnetic field, like high frequency ...
Influence of High Frequency Current Transformers Bandwidth on Charge Evaluation in Partial Discharge Measurements

Rodrigo Mor, Armando; Llovera Segovia, Pedro; Fuster Roig, Vicente Luis; Quijano Lopez, Alfredo (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)

[EN] High frequency current transformers (HFCT) are now widely used for partial discharges detection and measurement, specially for partial discharge location and source identification. However, many difficulties arise due ...
Optimization of the E-plane loaded rectangular waveguide for low-loss propagation

Sánchez Escuderos, Daniel; Ferrando Bataller, Miguel; Herranz Herruzo, José Ignacio; Baquero Escudero, Mariano (EMW Publishing, 2013)

The insertion of vertical slabs in a metallic rectangular waveguide distorts the power distribution of the waveguide, producing new modes and modifying the existing ones. The resulting waveguide, known as E-plane loaded ...
Prediction of rail corrugation using a rotating flexible wheelset coupled with a flexible track model and a non-Hertzian/non-steady contact model

Baeza González, Luis Miguel; Vila Tortosa, María Paloma; Xie, Gang; Iwnicki, Simon D. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)

[EN] This paper presents a model for simulating vehicletrack interaction at high frequencies for investigations of rail roughness growth. The dynamic interaction model developed employs a substructuring technique and the ...
Simulación y caracterización de las pérdidas de un On Board Charger

Beltrán Domínguez, Leonardo (Universitat Politècnica de València, 2022-09-01)

[ES] En la actualidad la movilidad eléctrica se está convirtiendo en una realidad. Es por eso por lo que los principales fabricantes de vehículos han empezado a centrar todos sus recursos al diseño de coches eléctricos. ...
Sound transmission through plates perforated with two periodic subwavelength hole arrays

Estrada, Héctor; Gómez Lozano, Vicente; Uris Martínez, Antonio; Candelas Valiente, Pilar; Belmar Ibáñez, Francisco; Meseguer Rico, Francisco Javier (IOP Publishing: Hybrid Open Access, 2011-03)

Theoretical results on sound transmission through plates perforated with compound periodic hole arrays are presented. Calculations are obtained by means of a model under the rigid-solid assumption, which is thoroughly ...