Electrochemical sensing using voltage-current time differential

A system for analysis of a gas stream, the system comprising:

• a signal generator to generate an original waveform;
• an electrochemical sensor to receive the original waveform, the electrochemical sensor disposed at least partially within the gas stream, the electrochemical sensor comprising:
• a first electrode;
• and
• a second electrode disposed relative to the first electrode;
• a signal detector configured to detect an affected waveform from the electrochemical sensor;
• and
• a processor coupled to the signal detector, the processor configured to:
• receive the affected waveform from the signal detector;
• compare at least one portion of the affected waveform with the original waveform;
• determine a difference between the affected waveform and the original waveform;
• determine a value corresponding to at least one characteristic of the gas stream based on a unique portion of the determined difference between the original and affected waveforms;
• and
• output the determined value corresponding to the at least one characteristic of the gas stream.

A method for analysis of a gas stream, the method comprising:

• identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream;
• calculating a difference between the affected region of the affected waveform signal and a corresponding region of an original waveform signal, wherein the affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream;
• and
• generating a value for the at least one characteristic of the gas stream based on the calculated difference.

A method for temperature analysis of a gas stream, the method comprising:

• identifying a temperature parameter of an affected waveform signal;
• calculating a change in the temperature parameter by comparing the affected waveform signal with an original waveform signal;
• and
• generating a value from the calculated change which corresponds to the temperature of the gas stream.