Title :
High resolution readout of metal oxide gas sensors using time-to-digital conversion
Author :
Brunsmann, Ulrich ; Tille, T.
Author_Institution :
Fac. of Eng., FH Aschaffenburg-Univ. of Appl. Sci., Aschaffenburg
fDate :
9/28/2006 12:00:00 AM
Abstract :
Time-to-digital conversion is investigated as a new method to record highly sensitive responses of semiconductor gas sensors. The method is evaluated by exposing metal oxide gas sensors to very low carbon monoxide (CO) concentrations. The noise equivalent detection limit is about 0.5 ppb CO
Keywords :
carbon compounds; gas sensors; readout electronics; CO; carbon monoxide concentrations; high resolution read out; metal oxide gas sensors; noise equivalent detection limit; semiconductor gas sensors; time-to-digital conversion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20062546
