UTILIZAÇÃO DE CANECA DE ALUMÍNIO COMO MATERIAL ALTERNATIVO PARA TEMPERATURA DE GLOBO DE VERNON
DOI:
https://doi.org/10.15361/arsveterinaria.v39i2.1497Abstract
Several studies related to the viability and efficiency of using alternative materials to Vernon globe have been conducted, mainly due to the high price of copper, a component of the standard instrument Based on the above considerations, it is justified to evaluate the efficiency of using an aluminum cup as an alternative material for the composition of the black globe. It was used an aluminum cup, model used in spray gun (50 ml). The cup was painted with matte black ink, in two layers, and a mercury thermometer was inserted in the center. Four devices were used to conduct the tests (two Vernon globes and two alternative black globes). Previous tests of temporal behavior were carried out. Established the time, the temperatures of the two balloons form tails for seven consecutive days, in three periods of 15 minutes each. The temperature records are made every five minutes, a total of 84 per equipment. For the statistical analysis of two data, the non-parametric Kruskal-Wallis test was used, at the 5% significance level. The average temperature result of the alternative black globe was similar to the Vernon globe, showing that it was satisfactory. It is concluded that the alternative black globe of the aluminum can type can be used to verify the globe temperature in environmental analysis, with the same level of efficiency of the standard equipment, allied to the benefit of lower cost.
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