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. 15, 2015
Filed:
Sep. 14, 2012
Gang LI, Princeton, NJ (US);
Yakup Genc, Dayton, NJ (US);
Erwan Baleine, Orlando, FL (US);
Dennis H. Lemieux, Casselberry, FL (US);
Gang Li, Princeton, NJ (US);
Yakup Genc, Dayton, NJ (US);
Erwan Baleine, Orlando, FL (US);
Dennis H. Lemieux, Casselberry, FL (US);
Siemens Corporation, Iselin, NJ (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
Two adjacent objects with a gap between the objects rotate in a hot atmosphere with a temperature greater than 300 F in a gas turbine. Automatic and accurate contactless measurement of the gap is performed by taking images of the gap. An image, preferably an infra-red image is taken from the gap, a processor extracts the two edges from the image of the gap. The processor also determines a line through the pixels of an edge by applying a Hough transform on the pixels. The edges are substantially parallel. A line substantially perpendicular to the lines is also determined. Using the substantially parallel lines and the line substantially perpendicular to the substantially parallel lines the processor determines a width of the gap.