Implementación de un sistema vibratorio automatizado mediante una interfaz HMI para el estudio de la estructura granular a través de inestabilidades hidrodinámicas.

Abstract

The objective of this present graduate research was to implement an automated system through a human-machine interface (HMI) for the study of the granular structure through hydrodynamic instabilities in the research laboratory of the Scientific and Technological Research and Innovation Group of the Faculty of Computer Science and Electronics at the Escuela Superior Politécnica of Chimborazo. The system is made up of an anti-vibration structure as well as three modules. The anti-vibration structure was built with structured aluminum to provide resistance and stability to the vibrations generated by the vibrator. The data acquisition module is made up of an IO-link master and a vibration sensor that is responsible for receiving the signals produced by the vibrator. The generation and actuation module uses an Arduino Uno, a digital-to-analog converter that generates the sinusoidal signal, a digital potentiometer, and an amplifier that activates the vibrator. The control and visualization module includes a programmable logic controller (PLC) and an HMI that activate the modules mentioned above, controlling the magnitudes, such as frequency and amplitude, that intervene in the vibratory system; all the elements that make up the system communicate with each other through the MODBUS TCP/IP communication protocol. To validate the vibratory system, sinusoidal wave generation tests, and sensing tests were performed to verify that the system is operating correctly. Additionally, connectivity and packet loss tests were conducted for the different modules, where it was determined that there was no packet loss sent between the different elements. Finally, based on previous research, an experiment was carried out using distilled water to confirm the formation of rings generated by the automated vibratory system. It is concluded that the automated vibratory system was successfully implemented.