System and method for gas sensing

A method of operating a sensor, comprising:

• exposing the sensor to a monitored environment;
• providing, via an impedance detector, to a sensing circuit comprising a gas sensor and a humidity sensor, a dielectric excitation of the gas sensor and the humidity sensor at a set of frequencies, wherein the gas sensor and the humidity sensor are electrically coupled to one another in parallel, wherein the sensing circuit is configured to provide a single output;
• measuring responses of the sensing circuit to the dielectric excitation at the set of frequencies;
• determining, based on the responses of the sensing circuit to the dielectric excitation, a relative humidity of the monitored environment;
• and
• determining, based on the responses of the sensing circuit to the dielectric excitation, identities, respective concentrations, or a combination thereof, of at least one analyte gas of the monitored environment, corrected for the determined relative humidity of the monitored environment.

A sensor for analysis of at least one gas within a monitored environment, comprising:

• a sensing circuit, comprising:
• a gas sensor configured to contact the monitored environment;
• and
• an interferent-compensating sensor configured to contact the monitored environment, wherein the gas sensor and the interferent-compensating sensor are electrically coupled to one another in parallel, wherein the sensing circuit is configured to provide a single output;
• and
• an impedance detector configured to:
• provide dielectric excitation of the sensing circuit at a set of frequencies;
• measure impedance response of the sensing circuit to the dielectric excitation at the set of frequencies;
• and
• determine, based on the impedance response of the sensing circuit to the dielectric excitation at the set of frequencies, identities, respective concentrations, or a combination thereof, of at least one analyte gas of the monitored environment, corrected for one or more sensed interferent conditions of the monitored environment.