Obtención de Señales Ocular-Nerviosas por medio de Filtros Activos.

Abstract

This paper describes the process for obtaining bio‐electric signals generated by eye, electro oculographic signals (EOG) through active filters, in this case a LM741 operational amplifier. Also as the signal was conditioned by combinations of active filters to clean the electrical signals oculográficas, even using MatLab ® software. For this purpose, was built a circuit to capture signals, condition and send them via a DB9 port to a computer. We describe the real and simulated behavior of the amplifier signals obtained by a function generator and electro oculographic signals, captured by electrodes of a volunteer. Also in this paper obtains mathematical foundation of the filters to validate the results. This paper also presents an active filter designed by one of the directors of the thesis, Dr. José de Jesús Rubio Avila, to clean the signal entirely in the software MatLab ®. This work is the basis for future work where we can analyze the signal digitally.