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:
Oct. 09, 2007
Filed:
Dec. 20, 2001
David K. Chen, Rochester Hills, MI (US);
David P. Wallace, Davison, MI (US);
Da Yu Wang, Troy, MI (US);
Walter T. Symons, Grand Blanc, MI (US);
Paul C. Kikuchi, Fenton, MI (US);
Yingjie Lin, El Paso, TX (US);
Lora Thrun, Grand Blanc, MI (US);
Mark A. Shost, El Paso, TX (US);
Joseph G. Ralph, Owosso, MI (US);
David K. Chen, Rochester Hills, MI (US);
David P. Wallace, Davison, MI (US);
Da Yu Wang, Troy, MI (US);
Walter T. Symons, Grand Blanc, MI (US);
Paul C. Kikuchi, Fenton, MI (US);
Yingjie Lin, El Paso, TX (US);
Lora Thrun, Grand Blanc, MI (US);
Mark A. Shost, El Paso, TX (US);
Joseph G. Ralph, Owosso, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
In a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber and a heating device, a ground plane electrode is provided and includes a sensing portion having a first sense lead and a second sense lead and a measuring portion having a first measuring lead and a second measuring lead, wherein the first measuring lead and the second measuring lead have increased surface area relative to said sensing portion such that the resistance between the first measuring lead and the second measuring lead is reduced and wherein the first measuring lead is disposed so as to be communicated with the first sense lead and the second measuring lead is disposed so as to be communicated with the second sense lead. Also, in a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber, a heating device and a ground plane electrode that includes a sensing portion having a first sense lead and a second sense lead and a measuring portion having a first measuring lead and a second measuring lead, a method for measuring the temperature of the planar oxygen sensor is provided and includes obtaining a temperature measurement device, communicating the temperature measurement device with the first measuring lead and the second measuring lead, operating the planar oxygen sensor so as to cause the heating device to heat the planar oxygen sensor, and measuring the resistance between the first measuring lead and the second measuring lead.