A GRAPHICAL APPROACH TO ESTIMATION OF GAS CONCENTRATION WITH SnO2 SENSORS |
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| W. Domanski, P. Chaitas, J. Zakrzewski, Th. Laopoulos |
- Abstract:
- Electronic systems for automated monitoring of the presence of dangerous gases are available nowadays in different configurations and with quite different capabilities. This work is presenting the development of an electronic instrument for monitoring the level of two gases (namely CO and CH4) aiming for possible use in coalmines. The instrument is using SnO2 sensors and is based on a graphical estimation of the concentration of each of the two gases realised by a combination of the information from the calibration curves of the two sensors. In this way, instead of trying to suppress the well-known secondary sensitivity of these gas sensors, this method is estimating the two concentrations by a computerised approximation of the operating point on the calibration curves.
- Download:
- IMEKO-TC4-2004-110.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2004
- Title:
- XIII IMEKO TC4 International Symposium on Measurements for Research and Industrial Applications (together with IXth International Workshop on ADC Modeling and Testing, IWADC)
- Place:
- Athens, GREECE
- Time:
- 29 September 2004 - 01 October 2004