Sistema de Olfato Electrónico de Bajo Costo para la Detección de Diferentes Compuestos Químicos Contaminantes


Sistema de Olfato Electrónico de Bajo Costo para la Detección de Diferentes Compuestos Químicos Contaminantes
Published in:	Engineering for a Smarter Planet: Innovation, ITC, and Computational Tools for Sustainable Development: Proceedings of the 9th Latin American and Caribbean Conference for Engineering and Technology
Date of Conference:	August 3-5, 2011
Location of Conference:	Medellin, Colombia
Authors:	Cristhian Manuel Durãn Acevedo Oscar Eduardo Gualdron Luis Daniel Rojas
Refereed Paper:	#242

Abstract
This paper describes an electronic nose system (B_NOSE) of low cost, developed through an array of 16 sensors of metal oxide gases (TGS) and signal processing techniques such as PCA, MLP and PNN for the classification of different chemicals compounds. We used a total of three volatile organic compounds (VOCs), of type aromatic hydrocarbons (benzene, toluene and xylene) in order to verify the sensitivity and selectivity of the system to 500, 1000 and 1500 ppm (parts per million). We compared the results with different classification techniques, obtaining a 100% success rate and determining that an electronic nose system is useful for detecting and identifying a large number of pollutants chemicals.