A compact and low cost electronic nose for aroma detection.

Autor: Macías Macías M; University Center of Merida, University of Extremadura, Mérida 06800, Spain. miguel@nernet.unex.es, Agudo JE, García Manso A, García Orellana CJ, González Velasco HM, Gallardo Caballero R
Jazyk: angličtina
Zdroj: Sensors (Basel, Switzerland) [Sensors (Basel)] 2013 Apr 25; Vol. 13 (5), pp. 5528-41. Date of Electronic Publication: 2013 Apr 25.
DOI: 10.3390/s130505528
Abstrakt: 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%.
Databáze: MEDLINE