Exhaust gas sensor and method for determining concentrations...

Measuring and testing – Gas analysis – Gas of combustion

Reexamination Certificate

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Reexamination Certificate

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08051700

ABSTRACT:
An exhaust gas sensor and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensor includes a NO2Nernst cell that generates a first voltage indicative of a NO2concentration in the exhaust gases communicating with the NO2sensing electrode. The exhaust gas sensor further includes a NOxNernst cell that generates a second voltage indicative of a NOxconcentration in the exhaust gases communicating with the NOxsensing electrode. The exhaust gas sensor further includes a NH3Nernst cell that generates a third voltage indicative of a NH3concentration in the exhaust gases communicating with the NH3sensing electrode.

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Rule 132 Declaration by Da Yu Wang originally submitted Jan. 10, 2011 in prosecution of U.S. Appl. No. 12/245,248.

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