Chemical sensors 2 Gas detectors 2 Semiconductor gas sensors Temperature 2 Temperature distribution 2 Temperature variation 2 Atmospheric temperature 1 Drift compensation 1 Environmental factors 1 Environmental variables 1 Gas sensor 1 Gases 1 Metal oxide gas sensors 1 Real monitoring 1 Semiconductor gas sensor 1 Sensor drift 1 Sensor resistance 1 Sensor response 1 Signal processing 1 Temperature and humidities 1 Temperature drifts 1 Toluene 1 drift percentage 1 response shift 1 sensor drift 1 temperature 1 temperature drift 1