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. 31, 1995
Filed:
Oct. 13, 1993
Theodore B Ladewski, Ann Arbor, MI (US);
KMS Fusion, Inc., Ann Arbor, MI (US);
Abstract
A system for gauging the surface of a test object includes an image sensor, such as a camera, positioned to receive an image of the radiation naturally emitted from the test object through an attenuating medium. The intensity of such radiation varies across the image as a function of the deviation of the test object surface from a nominal surface profile. The sensor output is digitized to form a set of digital signals indicative of the intensity of radiation across the image, and the digitized signals are stored in digital electronic memory and/or displayed on a screen. Methods for correcting optically generated errors in the image are disclosed that, together with the gauging system, provide a quantitative measurement of the deviations in a test object surface profile from a preselected profile.