Multi-bias scheme for an electrochemical gas sensor

A method of gas detection performed by an electrochemical device, comprising:

• receiving, via one or more gas apertures in the electrochemical device, a composition of one or more gases;
• applying, between one or more reference electrodes and one or more working electrodes, a set of bias voltage sub-cycles, wherein, for each bias voltage sub-cycle, of the set of bias voltage sub-cycles, a voltage applied between the one or more reference electrodes and the one or more working electrodes alternates between a corresponding steady voltage and a plurality of time-varying voltages centered about the corresponding steady voltage;
• detecting at least one of a current or a voltage while applying the set of bias voltage sub-cycles, resulting in at least one of a detected current or a detected voltage;
• and
• identifying at least one of a presence of each gas, of the one or more gases, or a concentration of each gas, of the one or more gases, based at least in part on the at least one of the detected current or the detected voltage.

A non-transitory computer-readable medium storing a set of instructions for gas detection, the set of instructions comprising:

• one or more instructions that, when executed by one or more processors of a gas detection system, cause the gas detection system to:
• receive, via one or more gas apertures in an electrochemical device, a composition of one or more gases;
• apply, between one or more reference electrodes and one or more working electrodes, a set of bias voltage sub-cycles, wherein, for each bias voltage sub-cycle, of the set of bias voltage sub-cycles, a voltage applied between the one or more reference electrodes and the one or more working electrodes alternates between a corresponding steady voltage and a plurality of time-varying voltages centered about the corresponding steady voltage;
• detect at least one of a current or a voltage while applying the set of bias voltage sub-cycles, resulting in at least one of a detected current or a detected voltage;
• and
• identify at least one of a presence of each gas, of the one or more gases, or a concentration of each gas, of the one or more gases, based at least in part on the at least one of the detected current or the detected voltage.