Construcción de un sistema de medición de propiedades eléctricas en materiales Óhmicos, utilizando plataformas de bajo costo, Software y Hardware libre (Arduino) como herramientas de apoyo a los cursos básicos de ingeniería en UNICATÓLICA

Abstract

A system for measuring electrical properties in ohmic materials was built, using low-cost platforms, free software and hardware such as Arduino (registered trademark), which works as a support tool for basic engineering courses at the Foundation University Catholic Lumen Gentium. It was carried out through an exploratory and documentary methodology, through which bibliographic bases and available literature on the implementation of Arduino systems for the measurement of physical and electrical magnitudes in ohmic materials were consulted. The survey of the requirements was carried out in order to have a starting point on the expected operation of each of the macro components that make up the designed system. A stainless steel sample chamber was built and the band-type resistor was removed to find that synergy between durability, performance and geometry that can make it easier to handle. The functionality of the built system was evaluated from the technical and economic point of view, with the aim of highlighting the advantages of this system compared to other devices on the market. As a result, a functional prototype was obtained that meets the purpose of measuring electrical magnitudes such as resistivity, with a low cost of acquisition and maintenance, in addition to being based on an intuitive operation that facilitates learning in the university's physics laboratory.