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:
Sep. 03, 2007
Filed:
Apr. 30, 2001
Steven Danyluk, Atlanta, GA (US);
Anatoly Zharin, Minsk, BY;
Elmer Zanoria, Peoria, IL (US);
Lennox Reid, Houston, TX (US);
Kenneth Hamall, Westchester, OH (US);
Steven Danyluk, Atlanta, GA (US);
Anatoly Zharin, Minsk, BY;
Elmer Zanoria, Peoria, IL (US);
Lennox Reid, Houston, TX (US);
Kenneth Hamall, Westchester, OH (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
A non-vibrating capacitance probe for use as a non-contact sensor for tribological wear on a component. The device detects surface charge through temporal variation in the work function of a material. A reference electrode senses changing contact potential difference over the component surface, owing to compositional variation on the surface. Temporal variation in the contact potential difference induces a current through an electrical connection. This current is amplified and converted to a voltage signal by an electronic circuit with an operational amplifier.