Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For nitrogen or nitrogen containing compound
Reexamination Certificate
2005-06-28
2005-06-28
Olsen, Kaj (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For nitrogen or nitrogen containing compound
C205S784000, C204S425000
Reexamination Certificate
active
06911140
ABSTRACT:
A sensor element and a method for determining the concentration of at least one gas component, especially of a nitrogen oxide, in a gas, mixture. For this purpose, the sensor element includes at least one first electrode exposed to the gas component to be analyzed and at least one reference electrode, which are electrically interconnected by a first solid electrolyte. Furthermore, an electric current between the first electrode and a further electrode is measured continuously or in sampling fashion in response to the application, especially the setting, of an electric voltage between first electrode and the reference electrode due to a chemical reaction proceeding at the first electrode, by which the concentration of the gas component to be analyzed in the gas mixture can be determined. During this process, the application or setting of the electric voltage takes place only during recurring time intervals. In addition, the electric current between the first electrode and the further electrode is measured at least intermittently within the recurring time intervals.
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F. Ménil et al., Sensors and Actuators B, 67 (2000), pp. 1 to 23.
Bloemer Bernhard
Springhorn Carsten
Kenyon & Kenyon
Olsen Kaj
Robert & Bosch GmbH
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