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:
Jun. 18, 2013
Filed:
Mar. 30, 2011
Asim Tewari, Maharashtra, IN;
Deepika Sachdeva, Karnataka, IN;
Kiran Deshpande, Bangalore, IN;
Arun M. Kumar, Karnataka, IN;
Pulak Bandyopadhyay, Rochester Hills, MI (US);
Jon T. Carter, Farmington, MI (US);
Asim Tewari, Maharashtra, IN;
Deepika Sachdeva, Karnataka, IN;
Kiran Deshpande, Bangalore, IN;
Arun M. Kumar, Karnataka, IN;
Pulak Bandyopadhyay, Rochester Hills, MI (US);
Jon T. Carter, Farmington, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system may be used to detect corrosion between a first metal and a second metal, where the second metal is positioned adjacent to the first metal. The system may include a processor electrically coupled to each of the first and the second metals and configured to monitor a complex impedance between the first metal and the second metal, where the complex impedance may include a real component and an imaginary component. The processor may compare the real component of the complex impedance to a first threshold, compare the imaginary component of the complex impedance to a second threshold, and indicate a likelihood of corrosion if at least one of the real and imaginary components are below their respective threshold.