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      Desarrollo de un sistema para medir tiempos en experimentos de movimiento rectilíneo

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          Abstract

          Se desarrolló un sistema para medir tiempos en experimentos de movimiento rectilíneo. Este sistema utiliza foto compuertas, como sensores, y una tarjeta de sonido de la computadora para la adquisición de datos. Los sensores de movimiento fueron comunicados con la computadora mediante un arreglo compuertas lógicas XOR y la serial proveniente de los sensores fue adquirida por medio de la interfaz de entrada de la tarjeta de sonido. Para la habilitación de la tarjeta de sonido y el procesamiento de los datos, se utilizó el software de MATLAB. El sistema desarrollado puede construirse con componentes económicos, y fue utilizado en dos experimentos para verificar su funcionamiento, mostrando aproximaciones cercanas a los modelos teóricos.

          Translated abstract

          It was developed a system to measure times using photo gates and a computer's sound card on rectilinear motion experiments. The movement sensors were connected to the computer through a XOR logic gate array, the signal from the sensors was fed to the computer's sound card input line. MATLAB was used to acquire and processing data and a specialized add-on software activated the hardware to read the signals produced by the photo gates. The system developed can be built with low cost items and it was tested with two different setup to evaluate and compare theoretical versus experimental data resulting in good agreement.

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          Most cited references14

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          Am. J. Phys

          A. Azooz (2007)
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            Consortium for computing sciences in colleges

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              Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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                Author and article information

                Journal
                rmfe
                Revista mexicana de física E
                Rev. mex. fís. E
                Sociedad Mexicana de Física (México, DF, Mexico )
                1870-3542
                June 2012
                : 58
                : 1
                : 18-23
                Affiliations
                [03] Altamira Tamaulipas orgnameInstituto Tecnológico y de Estudios Superiores de Monterrey México
                [01] México D.F. orgnameInstituto Politécnico Nacional orgdiv1Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada México gabriela_camero@ 123456hotmail.com
                [02] La Habana orgnameUniversidad de La Habana orgdiv1Facultad de Física Cuba
                [04] Tampico Tamaulipas orgnameUniversidad Autónoma de Tamaulipas orgdiv1Facultad de Ingeniería México
                Article
                S1870-35422012000100003 S1870-3542(12)05800100003
                5f304879-d1dd-48f2-b270-0adbe4814b33

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 23 January 2012
                : 28 November 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 12, Pages: 6
                Product

                SciELO Mexico

                Categories
                Enseñanza

                learning theory,physics laboratory in high school,Computer education,teoría del aprendizaje,laboratorio de física en escuela secundaria,Computadoras en educación

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