Análisis de la influencia de la velocidad del viento en el monitoreo de la condición por termografía infrarroja

Abstract

The purpose of this research project was to find a method that allows correcting the temperature measured by infrared thermography according to the speed of the wind that falls on the hot surface of an element. To carry out the thermographic measurements and their subsequent analysis, it was necessary to build an experimental blower module, which is made up of control devices for managing the speed of the wind generated by the module and then directed to a protection cabinet where there is a heating cartridge covered with a heat shrinkable material, which has a high emissivity; Subsequently, the heating cartridge was injected with different wind speeds and the temperature measurements were taken by scale with the SATIR Hot Find thermographic camera, then a data normality test was performed using the Shapiro Wilk method, where the data was normally distributed with a p value greater than 0.05; which allowed to verify that the conditions in the data collection are the same. Next, to test the hypothesis, the Student's t test was carried out, from which it was concluded that each wind speed corresponded to a single temperature value with a confidence level of 95%. An exponential regression was performed to find an equation with this data trend, this obtained equation was corrected for the exponential reduction coefficient by the mean square error method so that the equation was adjusted to the real behavior of the data, where the value of 0.071845 was obtained. The average error in checking this equation is 5.4%. The use of the correction equation is recommended to determine the closest temperature to the actual temperature at which the object is located.