Gas Sensing Systems and Methods of Operation Thereof

A method of sensing, the method comprising:

• obtaining, by a sensor, first sensor data points during a first time interval;
• obtaining first reference data points during the first time interval;
• and
• during a second time interval and after the first time interval,
• measuring, by the sensor, second sensor data points,
• generating corrected second sensor data points by correcting for baseline variation in the second sensor data points using a relationship between the first sensor data points and the first reference data points, and
• determining sensed values from the corrected second sensor data points.

A sensor device comprising:

• a gas sensor disposed on a first substrate, the gas sensor being configured to measure first sensor data points and second sensor data points;
• a heating element disposed within the first substrate, wherein the gas sensor overlaps the heating element;
• a processor operatively coupled to the gas sensor and the heating element;
• and
• a memory storing a program to be executed by the processor, the program comprising instructions for
• recording first resistance values and second resistance values of the heating element,
• adjusting the second sensor data points using the first sensor data points, the first resistance values, and the second resistance values to obtain corrected sensor data points, and
• determining sensed values from the corrected sensor data points.