Diseño e implementación de un sistema de adquisición de datos de fuerza en el péndulo de impacto para el grupo de investigación de la Facultad de Mecánica GDP

Abstract

In the present curricular investigation work, a force data acquisition system was implemented in the impact pendulum of the GDP research group of the Faculty on Mechanics, whose objective was to collect force data to obtain the impact force curves as a function of weather. For its implementation, National Instruments brand hardware and software were used, such as: LCHD-15K pancake load cell, NI 6009 DAQ module, twelve-volt power supply and link to the PC made with Windows connected by USB, where LabVIEW version 17.0 was installed as the development environment for the user interface. Communication with the DAQ software was archived using the NI-DAQmx driver software, compatible with the version of LabVIEW previously installed. The calibration of the sensors consisted of obtain a calibration equation and therefore a correction factor for the force values. For the validation of the impact force, several tests were carried out at different angles of inclination and compared with the theoretical values, obtaining an optimal configuration for the acquisition with several samples of 2000 and sampling frequency of 10000 Hz. With this configuration it was obtained Satisfactory data in the test, resulting in average error of 4,88%, which is within the established parameters, with these data based on a T-Student statistical test, verifying the absence of significant differences. It is concluded that the implemented system due to the low error that its reading represent. In subsequent works, this system will allow the measurement of important variables in the study and improvement of energy absorption properties in the materials used the industry.