In this work, we have demonstrated the approach for improving
interoperability ofthe catalytic sensors, i.e.their ability of detecting
various gas concentrations in the atmosphere, from 100 ppm up to
100% vol. instead of the widely applicable range of 0.1–10% vol.
The increase in the detection range is enabled by the application
of the proposed sensing circuit with two sensors embedded in a
voltage divider circuit and the gas diffusion control mechanism.
The advantage of this approach is the possibility of compensating
non-controllable ambient conditions, such as humidity, during the
measurement procedure.
The achieved results have got great potential for the industries
dealing with the combustible and hazardous gases detection in
indoor, outdoor or harsh environments. Our future work is aimed
at the integration of this solution with the wireless sensor network
paradigm