Construção de um trilho de ar de baixo custo: um estudo comparativo com um equipamento comercial

Abstract

This work proposes to demonstrate the construction of a low cost air rail and its comparative analysis with a commercial air rail. The construction of the rail was possible using the Arduino microcontroller, together with the measuring equipment called an ultrasonic sensor and the air rail parts that, in all, gave an estimated value of 400 reais. The comparative analysis is done by measuring the acceleration of the air tracks in two ways, the first using Newton’s second law and the second using uniformly varied rectilinear motion. From the measurement of these values, the comparison becomes valid and the discussion of these results as well. Based on these measurements, it was possible to perceive the precision of the commercial equipment, showing the reason for the high cost, and that further studies are needed to make the low-cost experiment achieve results close to the expected values.