Diseño de un sistema de medición de deformación en probetas y vigas de hormigón armado
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay.
Abstract
El presente trabajo surge a partir de la necesidad de automatizar las mediciones de
deformaciones en especímenes ensayados en el laboratorio de Ing. Civil de la UTN FRCU, con un grado
de exactitud cercano al micrón.
Para evaluar las deformaciones se optó por utilizar galgas extensiométricas debido la facilidad
que presentan para crear un sensor robusto, reutilizable y de bajo costo que posteriormente se
adhiere al espécimen a ensayar.
Mediante un conversor analógico digital se toma la deformación de las galgas y los datos son
transferidos a la computadora por medio de un microcontrolador.
La interfaz de usuario (software) permite visualizar los datos en tiempo real y, una vez finalizado
el ensayo, crea una planilla de Excel con los mismos.
The purpose of this research is to automatize the measurement of concrete specimens’ deformation which is tested in the civil engineering laboratory of UTN FRCU; our aim is to measure the strain with accuracy down to a micron. In order to calculate the deformation, we decided to use Strain gauges since they can easily be used to build a low-cost and reusable rugged sensor, which later on is attached to the specimen. Using an Analog-to-Digital Converter we are able to measure the Strain gauges’ deformation, and the acquired data is transferred to a computer through a microcontroller. The software allows us to visualize real-time data and once the test has ended, it produces an Excel spreadsheet with the previously mentioned data.
The purpose of this research is to automatize the measurement of concrete specimens’ deformation which is tested in the civil engineering laboratory of UTN FRCU; our aim is to measure the strain with accuracy down to a micron. In order to calculate the deformation, we decided to use Strain gauges since they can easily be used to build a low-cost and reusable rugged sensor, which later on is attached to the specimen. Using an Analog-to-Digital Converter we are able to measure the Strain gauges’ deformation, and the acquired data is transferred to a computer through a microcontroller. The software allows us to visualize real-time data and once the test has ended, it produces an Excel spreadsheet with the previously mentioned data.
Description
Keywords
Automatización de mediciones, Deformación-ensayo, Deformación-medición, Galga extensiómetra
Citation
PFC 1510 D. Ingeniería Electromecánica FRCU
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