Examinando por Materia "ANALOG TO DIGITAL CONVERSION"

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  • Miniatura
    PublicaciónAcceso abierto
    Control de mouse para computador mediante potenciales eléctricos oculares
    (2014-04-20) Arboleda-Clavijo, C. (Carolina); García-Cossio, E. (Eliana); Palacio-Ochoa, M. (Marcela)
    The use of computers and associated technology, has promoted the development of more comfortable and efficient hardware devices. Many handicapped people can not access to this technology. As a result, innovative mechanisms have been designed to attend the requirements of these people. One of such mechanisms has been the control through biopotentials. This article presents the construction of a mouse prototype, which allows horizontal displacements in response to left and right ocular movements that are registered by instrumentation amplifiers, processed and microcontrolled.
  • 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