Design of electronic systems for automatic and real time analysis of sound waves amplitude in resonance tubes

Abstract

This work presents two electronic systems experiments with resonance tubes, which generate automatically a sequence of several sound wave frequencies in a range defined by the user and then verifies the amplitude of each one in real-time, allowing for the immediate data visualization in a graph. Besides, they save all the frequency values and the respective wave amplitudes in a text file that can be later imported and processed with worksheets. The final results were satisfactory and this work explains all the hardware and software aspects based on an open-source philosophy.