Title :
On-line drift counteraction for metal oxide gas sensor arrays
Author :
Llobet, E. ; Brezmes, J. ; Vilanova, X. ; Correig, X. ; Hines, E.L.
Abstract :
Drift is one of the major problems experienced by gas analysers and electronic noses based on inexpensive metal oxide sensors. A novel drift counteraction technique is introduced, which allows for an online automated recalibration of the sensor system. The technique is demonstrated by discriminating three volatile compounds with 100% success rate using a sensor array.
Keywords :
calibration; compensation; gas sensors; automated recalibration; electronic noses; metal oxide gas sensor arrays; on-line drift counteraction; sensor array; volatile compounds;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030042
