Patent ID: 6174421
Filing Date: 2001-01-16
Classification: G01N

Abstract:
A sensor for measuring a concentration of at least one oxidizable constituent in a gas mixture, comprising:a reference electrode catalyzing an establishment of a thermal equilibrium of the gas mixture;an ion-conducting solid electrolyte having at least one pore, the solid electrolyte including additives which catalyze oxidation of one of:the at least one oxidizable constituent, andthe at least one oxidizable constituent that interferes with a reference gas in the gas mixture;at least one measuring electrode exposed to the at least one oxidizable constituent, the at least one measuring electrode being substantially unable to catalyze the establishment of the thermal equilibrium of the gas mixture; anda flat electrically insulating substrate,wherein the reference electrode, the solid electrolyte and the at least one measuring electrode are situated in vertical layers on a large surface of the substrate.