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:
Jul. 31, 2001
Filed:
Oct. 05, 1999
Lothar Diehl, Stuttgart, DE;
Alexander Bareiss, Immenstadt, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for testing a measuring sensor for the determination of an oxygen concentration in a gas mixture, the measuring sensor supplies a detection voltage furnished by a Nernst measuring cell and corresponding to the oxygen concentration. The detection voltage is evaluated by a circuit arrangement and is picked off between a first electrode exposed to the gas mixture and a second electrode exposed to a reference gas. The measuring sensor is heated to operating temperature. The Nernst measuring cell is exposed to a constant test voltage and a gas mixture with a well-defined oxygen concentration and a measuring current of the Nernst measuring cell is evaluated.