Development of an Electronic Nose Device for Security Applications

This paper presents a low-cost electronic nose (enose) device for detecting environmental gases that might be threatening for the human health such as combustible gas, alcohol, methane, carbon monoxide, hydrogen, among others. The prototype consists of a six-sensor array deployed in a compact structure. Sensors were characterized and a data acquisition system was implemented to visualize the sensors behavior. Preliminary experimental results show that the device is functional and that the sensors readings are suitable for a later classification stage. The proposed device might find applications in mobile robots, public transportation, and sensor arrays for monitoring toxic emissions