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:
Nov. 13, 2007
Filed:
Oct. 03, 2006
Da Yu Wang, Troy, MI (US);
Walter T. Symons, Grand Blanc, MI (US);
Robert Jerome Farhat, Grosse Point Park, MI (US);
Sheng Yao, Macomb, MI (US);
Joachim Kupe, Davisburg, MI (US);
Da Yu Wang, Troy, MI (US);
Walter T. Symons, Grand Blanc, MI (US);
Robert Jerome Farhat, Grosse Point Park, MI (US);
Sheng Yao, Macomb, MI (US);
Joachim Kupe, Davisburg, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NOemf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NOconcentration and a NO concentration using the NOemf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700° C., and the second electrode can be at a second temperature of about 500° C. to about 650° C.