Browsing by Subject "Nondestructive testing"
Now showing items 1-14 of 14
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Defect reconstruction by non-destructive testing with laser induced ultrasonic detection
(2020-02)
Article
Restricted access - publisher's policyThis work envisages a detailed study of two-dimensional defect localization and reconstruction, using laser generated ultrasound and its application as a remotely controlled non-destructive testing method. As an alternative ... -
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 ... -
Directional ultrasound source for solid materials inspection: diffraction management in a metallic phononic crystal
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-29)
Article
Open AccessIn this work, we numerically investigate the diffraction management of longitudinal elastic waves propagating in a two-dimensional metallic phononic crystal. We demonstrate that this structure acts as an “ultrasonic lens”, ... -
Diseño de procedimientos para el estudio de piezas mediante corrientes inducidas
(Universitat Politècnica de Catalunya, 2020-07-13)
Bachelor thesis
Restricted access - author's decisionEls assajos amb equips de corrents induïts són una tècnica d'inspecció no destructiva que s'utilitza per detectar, principalment, defectes superficials i subsuperficials en les peces. Una altra aplicació es la de classificar ... -
Estudio sobre la aplicación de la imagen digital para la evaluación no destructiva del proceso de fraguado de materiales proyectados en la construcción
(Universitat Politècnica de Catalunya, 2017-07)
Master thesis
Open AccessLa imagen digital contiene mucha información que a simple vista no podemos analizar ni evaluar por completo, debido a la capacidad limitada que tiene el ojo humano. Al procesar la información que contiene una imagen digital ... -
Evaluación de la aplicación de la técnica de percusión, registro de señal sonora y posterior análisis espectral para la verificación de la adherencia de aplacados de piedra como revestimiento encolado en fachadas urbanas en altura
(2008-05-30)
Lecture
Open AccessDesde hace años se van produciendo con alarma casos de desprendimiento al vacio de aplacados de piedra natural que revisten paramentos altos de fachadas situadas en entornos urbanos. Se trata de aplacados adheridos al ... -
High voltage pulser for NDE air-coupled lamb wave ultrasonic system
(American Institute of Physics (AIP), 2010)
Conference report
Restricted access - publisher's policyThis paper describes a high voltage pulser developed for an air-coupled ultrasonic array NDE system based on Lamb waves. Unlike the classical single pulse excitation circuits, this pulser is able to generate a bipolar ... -
Influence of fiber properties on the inductive method for the steel-fiber-reinforced concrete characterization
(2016-08-01)
Article
Open AccessThe inductive method has shown to be a good method for the estimation of fiber dosage in steel-fiber-reinforced concrete. The current formulations reported a strong correlation between inductance and fiber content, as well ... -
Investigation of the response of a ferrofluid in a surface crack under an applied magnetic field
(Universitat Politècnica de Catalunya, 2014-10-06)
Bachelor thesis
Open AccessNon-destructive testing (NDT) is of paramount importance in both the aerospace and general markets. Nowadays, several NDT techniques are available and widely recognised for inspection services. However, wide research is ... -
Mejoras a la Inspección Boroscópica del Motor Turbofan CFM56-7B
(Universitat Politècnica de Catalunya, 2013-02-18)
Bachelor thesis
Open AccessThe boroscope or endoscopy is a non-destructive test method widely used in medical, nuclear power and aviation. Using a small port access to critical points to inspect the contents without opening the patient or open a ... -
Non-destructive Testing of aerospace components
(Universitat Politècnica de Catalunya, 2007-06-06)
Master thesis (pre-Bologna period)
Open AccessEste proyecto trata de ensayos no destructivos como parte de la industria aeronáutica y aeroespacial. Hoy en día, se invierten importantes sumas de dinero en mantenimiento de aeronaves, y las técnicas no destructivas ... -
Preliminary study of an innovative Non-Destructive Testing technique concept for detection of surface cracks in non-ferromagnetic materials
(Universitat Politècnica de Catalunya, 2013-11-11)
Master thesis
Open AccessThe research presented in this thesis is framed in the preliminary study for the development of an innovative Non-Destructive Testing (NDT) technique concept based on deposition of a ferrofluid consisting of magnetic ... -
Técnicas de ultrasonidos aplicadas al reconocimiento “in situ” de discontinuidades visibles en soleras de hormigón armado
(2009-03-20)
Conference report
Open AccessEl equipo que presenta esta comunicación ha venido observando desde hace tiempo una anomalía que presentan en el estado español las soleras contínuas realizadas con hormigón armado ejecutado “in situ” y que estan en contacto ... -
Wavelet transform applied to internal defect detection by means of laser ultrasound
(2019-04-03)
Part of book or chapter of book
Open AccessLaser-generated ultrasound represents an interesting nondestructive testing technique that is being investigated in the last years as performative alternative to classical ultrasonic-based approaches. The greatest difficulty ...
