The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2002
Filed:
Nov. 22, 1999
Applicant:
Inventor:
Ralf Moos, Friedrichshafen, DE;
Assignee:
Dornier GmbH, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/7416 ;
U.S. Cl.
CPC ...
G01N 2/7416 ;
Abstract
In a method for detecting oxygen concentration in a gas, a functional material in the form of a layer or film made of a semiconducting metal oxide, whose thermoelectric power can be represented as a function of partial oxygen pressure, is subjected to the gas to be analyzed. A temperature difference is created between two points on the functional material, and the voltage difference between the two points of the functional material that are at different temperatures is determined as a measure of oxygen concentration.