Oxidizable gas component sensor and method of using the sensor

Details Oxidizable gas component sensor and method of using the sensor Oxidizable gas component sensor and method of using the sensor

2005-05-10

2005-05-10

Olsen, Kaj K. (Department: 1753)

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

For oxygen or oxygen containing compound

C205S780500, C205S784500, C205S787000, C204S425000

Reexamination Certificate

active

06890422

ABSTRACT:
An electrochemical gas sensor determining the concentration of oxidizable gas components which has an electrochemical measuring cell having a measuring electrode and a reference electrode. Measuring electrode is made of a material which is not able, or not completely able to catalyze the establishment of gas equilibrium. In addition to the electrochemical measuring cell, at least one electrochemical pumping cell, having at least one inner pumping electrode, is provided, which, together with measuring electrode, is positioned in a measuring gas compartment. Oxygen is pumped into or out of measuring gas compartment by pumping cell, the partial pressure of oxygen in measuring gas compartment being set to a lambda value of ≧1.3.

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Ronald K. Jurgen,Automotive Electronics Handbook,McGraw-Hill, Inc., NY, 1999, Chap. 6, pp. 1-11.

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