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:
Apr. 10, 2012
Filed:
May. 17, 2010
Mehrooz Zamanzadeh, Pittsburgh, PA (US);
Gordon Kirkwood, Pittsburgh, PA (US);
Sam Scheinman, Pittsburgh, PA (US);
Mehrooz Zamanzadeh, Pittsburgh, PA (US);
Gordon Kirkwood, Pittsburgh, PA (US);
Sam Scheinman, Pittsburgh, PA (US);
Matco Services, Inc., Omaha, NE (US);
Abstract
A sensor measures the interaction of an applied magnetic field to an iron sample surface to determine whether the sample surface has been graphitized. The sensor measures the magnetic force resulting from the interaction or the magnetic flux density to determine the content of magnetic material in localized regions of the sample surface. The sensor includes a cantilever beam with a strain gauge for measuring magnetic force. Alternatively, the sensor includes a magnetic flux density sensor to measure magnetic flux density.