Examinando por Autor "Osorio-Valencia, J. S. (Juan Sebastián)"

Mostrando 1 - 2 de 2
  • Miniatura
    PublicaciónAcceso abierto
    Diseño y construcción de un fonocardiógrafo digital con visualización en LabVIEW
    (2014-04-18) Osorio-Valencia, J. S. (Juan Sebastián); Cuesta-López, L. F. (Luisa Fernanda); Gómez-Maya, F. (Felipe)
    The auscultation of the heart noises has always been an important tool in medicine, a good diagnosis of illnesses related to the heart valves should be given from a phonocardiogram able to give the doctor a reliable information of the patients situation. The design presented is a phonocardiograph capable of amplifying and filtering the acoustic signs derived from the heart. After an analog to digital conversion of those signs the information is sent by serial port to a graphic environment in LabVIEW for its registration and analysis in real time
  • Miniatura
    PublicaciónAcceso abierto
    Diseño y construcción de un pedal de bicicleta basado en sensores piezorresistivos para determinar la fuerza resultante
    (2014-04-20) Osorio-Valencia, J. S. (Juan Sebastián); Gómez-Cardona, S. (Sebastian); Restrepo-Mejía, S. (Sebastián)
    In the Colombian cycling, the training guidelines are adjusted from qualitative data based on the direct observation of the sportsman. The aim of this research was to improve this process by the implementation of instrumented pedals to collect quantitative data of the performance of the cyclist. In this article we present the design and construction of a prototype of a dynamometric device that allows the acquisition of force data in the pedal. The device works based in a piezoresistive force sensor (FlexiForce®) connected to a specific mechanical adjustment and a signal conditioning system that gives a proportional voltage to the exerted force, whose registry and analysis are made in LabVIEWTM. The device allows the visualization of the pedaling force in real time.