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:
Jul. 10, 2007
Filed:
Sep. 29, 2003
Michael Berke, Bruhl, DE;
Michael Berke, Bruhl, DE;
Abstract
The invention relates to a method for determining the size of a fracture () in a workpiece (), in particular the depth of a fracture () in said workpiece (), by means of the ultrasound pulse method, comprising the following method steps: a workpiece (), with a front surface () and a back surface (), having a fracture (), extending from the back surface () and an angle test head () is applied to the front face (), transmits ultrasound pulses at an angle alpha into the workpiece () and receives echoes from said pulse, the angle test head () is moved at least once over the fracture (), such that the radiation beam () from the angle test head () completely covers the fracture (), the received echo signals are digitized and stored in a memory () as variable pairs of echo signal versus runtime, the variable pairs form a value upwardly defined by an envelope () and the dimension of the fracture () is determined from the width of the envelope () at a given partial amplitude and the maximum amplitude of the envelope ().