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Prospectiva

Print version ISSN 1692-8261

Abstract

DANIEL-MOLINA, Cristhian; CALVO, Andrés Felipe  and  PAMPLONA, Leidy Esperanza. Development of an experimental module of light diffraction for a physics laboratory remotely controlled. Prospect. [online]. 2017, vol.15, n.1, pp.100-111. ISSN 1692-8261.  http://dx.doi.org/10.15665/rp.v15i1.744.

This paper presents the design and implementation of an experimental module diffraction of light to a remote laboratory, where a new method is proposed to find the distances from the central maximum to the secondary minimum of the diffraction pattern using the tools provided by digital image processing and computer vision. For the construction of the module has been used a red dot laser diode with 650nm wavelength and a system of three single slits and a circular slit. For the acquisition of experimental data a webcam Microsoft LifeCam has been used to capture the diffraction pattern. The software used was LabVIEWTM which is responsible for the capture, processing and communication between the server and the interface. Furthermore, the Institución Matecaña, an Educational Institution from the municipality of Pereira, implemented the laboratory in their computer rooms by students from tenth and eleventh grade and teachers of the areas of physics, using TICs as educational tools for the development of this practice. The error in the measurement of each of the slits does not exceed 5%.

Keywords : Diffraction of light; Remote laboratory; Digital image processing; Slits; TICs.

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