Browsing by Subject "Piezoelectricity"

Now showing items 1-20 of 58

    • An immersed boundary hierarchical B-spline method for flexoelectricity 

      Codony Gisbert, David; Marco Alacid, Onofre; Fernández Méndez, Sonia; Arias Vicente, Irene (2019-09-01)
      Article
      Open Access
      This paper develops a computational framework with unfitted meshes to solve linear piezoelectricity and flexoelectricity electromechanical boundary value problems including strain gradient elasticity at infinitesimal ...

    • An impacting energy harvester through piezoelectric device for oscillating water flow 

      Toma, Daniel Mihail; Carbonell Ventura, Montserrat; Pujol Bresco, David; Manuel Lázaro, Antonio; Miquel Masalles, Jaume (2013)
      Conference report
      Open Access
      The reduced power requirements of miniaturized electronics offers the opportunity to create devices having their power supply based on energy harvesters. In this paper a new idea is proposed and studied to supply underwater ...

    • Aprofitament de l'energia de l'entorn mitjançant piezoelèctrics 

      Aldomà Mas, Roger; Ribera Llimós, Marc (Universitat Politècnica de Catalunya, 2011-06-15)
      Master thesis (pre-Bologna period)
      Open Access
      El present projecte suposa l’intent de desenvolupar aplicacions de reaprofitament d’energia en el camp de l’energy harvesting, utilitzant materials piezoelèctrics. Degut a que els autors del projecte parteixen de zero en ...

    • Captació d’energia de l’entorn mitjançant elements piezoelèctrics 

      Ovejas Benedicto, Victòria Júlia (Universitat Politècnica de Catalunya, 2008-05-26)
      Master thesis (pre-Bologna period)
      Open Access
      Cada vegada més s’utilitzen dispositius petits, portàtils i de baix consum energètic. Per exemple, les xarxes de sensors autònoms. Aquestes actualment s’alimenten amb piles o bateries i, per tant, encara no són totalment ...

    • Caracterització i implementació de transductors acústics pel seguiment d'espècies marines 

      Majó Batlle, Martí (Universitat Politècnica de Catalunya, 2020-11-19)
      Bachelor thesis
      Open Access
      Aquest treball estudia les comunicacions subaquàtiques amb l’objectiu de fer un seguiment d’escamarlans dins d’una reserva marina, centrant-se en el sistema de seguiment mitjançant etiquetes acústiques. Primerament s’ha ...

    • Data-driven multiactuator piezoelectric system for structural damage localization 

      Mujica Delgado, Luis Eduardo; Tibaduiza Burgos, Diego Alexander; Rodellar Benedé, José (2010)
      Conference lecture
      Open Access
      In initial studies, it has been shown that the combination of Principal Component Analysis (PCA) and the contribution plots of Q and T2-statistics can be considered an efficient technique to detect, distinguish and localize ...

    • Desenvolupament d'un dispositiu wearable per a mesurar patrons de respiració 

      Pou Robert, Enric (Universitat Politècnica de Catalunya, 2017-01)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Desenvolupament de tèxtils amb propietats piezoelèctriques basats en fibres de PVDF 

      Amills Valenzuela, Maria Isabel (Universitat Politècnica de Catalunya, 2018-06-08)
      Bachelor thesis
      Restricted access - author's decision
      Aquest treball parteix d’un estudi previ sobre la generació d’energia mitjançant nanomembranes de PVDF amb dopants. En el present projecte, s’han estudiat les propietats piezoelèctriques d’aquestes membranes a partir ...

    • Design and development of an electronic interface circuit for piezoelectric sensors applied to impact detection 

      Monté Muñoz, Gunther (Universitat Politècnica de Catalunya, 2011-02-16)
      Master thesis
      Open Access
      Impact detection is a very important Technology in today’s industry and science. It has many applications, from testing building structures to detecting the coin impact in an automatic distribution machine. The aim of ...

    • Design and implementation of a data acquisition and transmission system based on configurable hardware 

      Veloso Trigo, Rubén (Universitat Politècnica de Catalunya, 2018-10)
      Master thesis
      Restricted access - author's decision
      The aim of this project is to find a practical solution for high speed data transfers rate systems. The goal of the project is to design and develop a functional prototype able to acquire data from an analogue source and ...

    • Design, implementation, and validation of a piezoelectric device to study the effects of dynamic mechanical stimulation on cell proliferation, migration and morphology 

      Mojena Medina, Dahiana; Martínez Hernández, Marina; de la Fuente, Miguel; García Isla, Guadalupe; Posada Roman, Julio E.; Jorcano, José Luis; Acedo, Pablo (Multidisciplinary Digital Publishing Institute (MDPI), 2020-04-10)
      Article
      Open Access
      Cell functions and behavior are regulated not only by soluble (biochemical) signals but also by biophysical and mechanical cues within the cells’ microenvironment. Thanks to the dynamical and complex cell machinery, cells ...

    • Developing and testing an amplifier system for piezoelectric sensors 

      Enseñat Porcel, Jaume (Universitat Politècnica de Catalunya, 2011-05)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Nottingham Trent University. School of Architecture, Design and the Built Environment
      Piezoelectric sensors are used in condition monitoring system to monitor forces, vibration, strain, acoustic emission and for other applications. The sensors produce a small electric charge which needs to be amplified ...

    • Dielectric and mechanical nonlinear behavior of Mn doped PMN-35PT ceramics 

      Kobor, Diouma; Hajjaji, Abdelowahed; García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Lebrun, Laurent; Guyomar, Daniel (2010-10)
      Article
      Open Access
      This paper presents an investigation on dielectric and mechanical nonlinear properties in Mn-doped PMN-35PT ceramics. The structural study of the ceramics verifies that the 1% mol Mn doped PMN-35PT is a pure perovskite ...

    • Dielectric and piezoelectric nonlinear properties of slightly textured lead barium niobate ceramics 

      Ochoa Guerrero, Diego A.; Casals Mirones, Jorge Alejandro; Venet, Michel; M'Peko, Jean-Claude; García García, José Eduardo (American Institute of Physics (AIP), 2019-01-09)
      Article
      Open Access
      Dielectric and piezoelectric responses of slightly textured, lead barium niobate ceramics are studied. The designed morphotropic phase boundary composition (Pb0.63Ba0.37Nb2O6) shows considerable nonlinear dielectric and ...

    • Diseño de un sistema electrónico para la realización de estudios biomecánicos de la pisada utilizando plantillas sensoras y su monitorización mediante interfaz Android 

      Torres Verón, Francisco Alfonso; Ultraran Vázquez, Carles; Tomàs Biarnés, Daniel (Universitat Politècnica de Catalunya, 2016-02)
      Master thesis
      Restricted access - author's decision
      En este proyecto se pretende diseñar y construir un sistema electrónico que mediante una plantilla instrumentada y con la ayuda de una interfaz Android sea capaz de realizar un estudio biomecánico de la marcha y que permita ...

    • Disseny d'un circuit d'interfície per a un PDO aplicat a dispositius piezoelèctrics 

      Fernandez Tomas, Alejandro (Universitat Politècnica de Catalunya, 2015-02-06)
      Bachelor thesis
      Open Access
      [ANGLÈS] The digital pulsed oscillators are the systems in charge of controlling a ressonator device so we can get a controlled and constant oscillation. As a control system, it is formed by a circuit that detects the ...

    • Disseny d'un sistema de control amb FPGA per actuadors piezoelèctrics 

      Gumara i Ferret, Ramon (Universitat Politècnica de Catalunya, 2009-10)
      Master thesis (pre-Bologna period)
      Open Access
      En aquest projecte s’expliquen quines són les propietats de l’efecte piezoelèctric i quines són les seves aplicacions en l’actualitat. Amb aquesta base es parteix a examinar de quines maneres es pot realitzar el control ...

    • Distributed piezoelectric sensor system for damage identification in structures subjected to temperature changes 

      Vitola Oyaga, Jaime; Pozo Montero, Francesc; Tibaduiza Burgos, Diego Alexander; Anaya Vejar, Maribel (2017-05-31)
      Article
      Open Access
      Structural health monitoring (SHM) is a very important area in a wide spectrum of fields and engineering applications. With an SHM system, it is possible to reduce the number of non-necessary inspection tasks, the associated ...

    • Electronic wireless drum sticks 

      Rodríguez García, Eduard (Universitat Politècnica de Catalunya, 2015-07-21)
      Bachelor thesis
      Open Access
      This thesis wants to develop a prototype of a final commercial product. It tries to take the idea of electronic drums to the next level by creating a drum system packed in just a pair of sticks. Any surface will be an ...

    • Estación meteorológica alimentada mediante un sistema piezoeléctrico de recolección de energía 

      Carballo Carré, Raül (Universitat Politècnica de Catalunya, 2017)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      In order to provide information on weather conditions on the top of a mountain, both mountaineers and nearby shelter workers, a small weather station has been designed that can be easily installed at the summit to get ...