Uncertainty Calculation on the Visual Measurements of the Parameters of a Foucault Pendulum
Pablo Vera Alfaro y Joaquín Salas Rodríguez
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del IPN, Unidad Querétaro Cerro Blanco Núm. 141, Col. Colinas del Cimatario, Querétaro, Qro. C. P. 76090, E–mails: pvera@ipn.mx, jsalasr@ipn.mx
Artículo recibido en Noviembre 06, 2007
Aceptado en Febrero 04, 2008
Resumen
Se presenta un método para la determinación de la incertidumbre en la medición de los parámetros que describen la dinámica de un péndulo de Foucault. Primero revisamos como se pueden obtener estos parámetros. Luego, proponemos un método para la evaluación de la incertidumbre en su determinación. Ilustramos el método con experimentación realizada sobre un péndulo de 28m de altura ubicado a 20° 35' de latitud norte.
Palabras clave: Péndulo de Foucault, Incertidumbre, Calibración de Cámaras, Visión por Computadora.
Abstract
We present a method for determining the uncertainty in the measurement of parameters that describe the dynamics of a Foucault's pendulum. In the document, we review how these parameters can be obtained. Then, we propose a method for evaluating the uncertainty in their determination. We illustrate the method with experimentation made on a 28m height pendulum located at 20° 35' north latitude.
Keywords: Foucault Pendulum, Uncertainty, Camera Calibration, Computer Vision.
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