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Abstract
The DC resistance of a Taguchi gas sensor is influenced by the ambient gas. To improve the selectivity and sensitivity of a sensor the fluctuation enhanced sensing (FES) was used. The paper proposes a novel methodology of utilizing FES technique that sample composition of an ambient atmosphere and hold it for further processing (sample-and-holding technique). The method uses the heated gas sensor to sample an ambient atmosphere and after cooling to room temperature the gas molecules are kept frozen during the subsequent measurements. A special sample-and-holding computer-controlled system has been constructed for noise data acquisition. The experimental results enabled to determine the optimal measurement conditions for achieving a substantial information about the ambient atmosphere for cooled sensor.
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- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- EDS'14 IMAPS CS INTERNATIONAL CONFERENCE PROCEEDINGS strony 65 - 68
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Trawka M., Smulko J., Hasse L.: SAMPLE-AND-HOLDING METHOD FOR GAS SENSING APPLIED FOR RESISTANCE GAS SENSORS// EDS'14 IMAPS CS INTERNATIONAL CONFERENCE PROCEEDINGS/ ed. Ondrej Hegr Brno, Czech Republic: Vysoke uceni technicke v Brne, 2014, s.65-68
- Verified by:
- Gdańsk University of Technology
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