Embedded e-nose for food inspection

Abstract

This paper details development of a low cost, small size, portable embedded electronic nose (e-nose). The odor Sensor array is composed of commercially available metal oxide semiconductor sensors by Figaro. The embedded E-nose consists of PIC18F4520 and has an RS 232 interface to Desktop PC for data acquisition, storage and analysis of the odor signals. The developed system is used to analyze odors of onions and oranges. The paper presents the response of the array and results obtained.