Development of an Electronic Nose for Determining the Freshness of Fish by the Desorption Constants of Sensors

VOROBIOFF, JUAN; DANIEL F. RODRIGUEZ; BOGGIO, NORBERTO G; C. A. RINALDI

Daegu

Simposio; International Syposium on Olfaction and Electronic Nose; 2013

International Society for Olfaction and Chemical Sensing

We developed an electronic nose (NE) reduced in size, based on commercial sensors array with a particular thermally stabilized chamber and an advanced processing algorithms. In this work using a heater system that controls the temperature of the sensors chamber, it was possible to study the desorption process on SnO2 sensor array. Data signal of sensors applying a two exponential decay functions were analyzed in order to determine the desorbing constant process. These constants were used to measure the fish freshness.