Systems and methods for gas sensing with electrochemical gas sensors

A method of operating an electrochemical gas sensor, comprising:

• exposing an electrochemical gas sensing element of the electrochemical gas sensor to a fluid sample;
• cycling, via a data collection component, the electrochemical gas sensing element between a first operational condition and a second operational condition at a pre-determined time constant, wherein the first operational condition corresponds to a first bias voltage value, and wherein the second operational condition corresponds to a second bias voltage value;
• and
• measuring responses of the electrochemical gas sensor to the fluid sample at the first operational condition and the second operational condition, wherein the responses of the electrochemical gas sensor to the fluid sample at the first operational condition and the second operational condition are indicative of identities, respective concentrations, or a combination thereof, of at least two analyte gases of the fluid sample.

An electrochemical gas sensor for multi-gas analysis of a fluid sample, comprising:

• an electrochemical gas sensing element;
• and
• a data collection component configured to:
• receive contextual data indicative of a humidity, a pressure, an ambient temperature, one or more wind conditions, a location, or any combination thereof,
• cycle the electrochemical gas sensing element between a first excitation value and first signal detection values and a second excitation value and second signal detection values at a predetermined time constant, wherein the first excitation value comprises a first bias level of the electrochemical gas sensor, and wherein the second excitation value comprises a second bias level of the electrochemical gas sensor;
• and
• measure responses of the electrochemical gas sensor to the fluid sample at the first excitation value and the first signal detection values and the second excitation value and the second signal detection values;
• and
• wherein the electrochemical gas sensor is configured to determine, based on the contextual data and the responses of the electrochemical gas sensor to the fluid sample at the first excitation value and the first signal detection values and the second excitation value and the second signal detection values, identities, respective concentrations, or a combination thereof, of at least two analyte gases of the fluid sample.