METHOD FOR OPERATING A GAS SENSOR DEVICE AND GAS SENSOR DEVICE FOR DETERMINING INFORMATION ABOUT AIR QUALITY

The present invention relates to a method for operating a gas sensor device (10) for determining information about air quality, comprising the steps: providing (S1) a gas sensor device (10) having atleast one gas-sensitive electrical sensor resistor (W), a heating means (H) for controlled heating of the sensor resistor (W), a detection device (EF) for detecting the resistance value of the sensorresistor (W) and a signal processing device (S) for the sensor signal; heating (S2) the sensor resistor (W) by means of the heating means (H) alternately in at least one first heating mode (HDC) in afirst operating phase and at least one second heating mode (LDC) in a second operating phase, wherein each heating mode comprises a sequence of heating pulses, such that the sensor resistor (W) is heated at predetermined temporal intervals, for a predetermined duration to a predetermined operating temperature, wherein, for the at least two different heating modes, a substantially identical operating temperature is selected;