A NEW-GENERATION OF INTEGRATED ELECTRONIC NOSES

At Eurosensors VII the authors discussed the feasibility of integrating the UMIST artificial electronic nose. A tentative sensor deposition technique was reported along with the development of an application specific integrated circuit (ASIC) to perform the analogue signal processing. The following paper reports further progress in achieving this goal. The integrated nose employs two ASICs; a current multiplexer and a current amplifier. Current-mode signal processing has been utilized where appropriate. Arrays of conducting organic polymers have been successfully fabricated. Results are presented on the dynamics, reproducibility and matching of the sensing elements.