CPC G01M 15/14 (2013.01) [F23D 11/406 (2013.01); F23D 14/145 (2013.01); F23N 1/022 (2013.01); F23N 5/022 (2013.01); F23N 5/123 (2013.01); F23N 5/184 (2013.01); G01N 33/0027 (2013.01); G01N 33/0062 (2013.01); G01N 33/0073 (2013.01); F23D 2208/10 (2013.01); F23D 2212/103 (2013.01); F23N 2237/26 (2020.01)] | 40 Claims |
1. A system for measuring a fuel-oxidant equivalence ratio, comprising:
at least one wall defining a gas volume, the gas including fuel and air;
a gas ionization source configured to cause a formation of ions in the gas;
a power supply configured to output a time-varying voltage;
a first electrode disposed in the gas volume, operatively coupled to the power supply, and configured to carry the time-varying voltage;
a second electrode, arranged to operatively couple to a signal from the first electrode through at least a portion of the gas volume;
a receiver circuit operatively coupled to the second electrode and configured to receive the signal, the signal having a characteristic corresponding to the fuel-oxidant equivalence ratio within the gas volume; and
a control circuit operatively coupled to the receiver circuit, configured to determine a value corresponding to the fuel-oxidant equivalence ratio.
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