A Compact and Low Cost Electronic Nose for Aroma Detection

Sensors

Miguel Mac໚s Mac໚s³  J. Enrique Agudo³  Antonio Garc໚ Manso¹  Carlos Javier Garc໚ Orellana²  Horacio Manuel González Velasco¹ 

[1] Polytechnic School, University of Extremadura, Cáceres 10003, Spain; E-Mails:;Faculty of Science, University of Extremadura, Avda. Elvas s/n, Badajoz 06006, Spain; E-Mail:;University Center of Merida, University of Extremadura, Sta. Teresa de Jornet, 38, Mérida 06800, Spain; E-Mail:

关键词: electronic nose;    microcontroller;    neural network;   

DOI  :  10.3390/s130505528

来源: mdpi

【 摘 要 】

This article explains the development of a prototype of a portable and a very low-cost electronic nose based on an mbed microcontroller. Mbeds are a series of ARM microcontroller development boards designed for fast, flexible and rapid prototyping. The electronic nose is comprised of an mbed, an LCD display, two small pumps, two electro-valves and a sensor chamber with four TGS Figaro gas sensors. The performance of the electronic nose has been tested by measuring the ethanol content of wine synthetic matrices and special attention has been paid to the reproducibility and repeatability of the measurements taken on different days. Results show that the electronic nose with a neural network classifier is able to discriminate wine samples with 10, 12 and 14% V/V alcohol content with a classification error of less than 1%.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.