Importance

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Abstract

A solid electrolyte dual gas sensor (10) is made, containing a container body of a first solid electrolyte (11), in contact with a monitor electrode (17) exposed to a monitored gas environment (13) containing selected gas components to be measured and in contact with a reference electrode (15) which is additionally isolated from the monitored gas environment by a second solid electrolyte section (16), and optionally section (14), where the solid electrolyte section (16) is disposed within a ceramic oxide matrix material (25) where the matrix contains interconnected pores filled with electrolyte, and where the second solid electrolyte, at the operating temperature of the gas sensor, is effective to dissociate to provide the sole source of self-generated reference gases at the reference electrode (15).

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First Claim