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. 23, 2014
Filed:
May. 02, 2012
El Mahjoub Rasselkorde, Monroeville, PA (US);
Waheed A. Abbasi, Murrysville, PA (US);
Larry C. Himes, Greensburg, PA (US);
El Mahjoub Rasselkorde, Monroeville, PA (US);
Waheed A. Abbasi, Murrysville, PA (US);
Larry C. Himes, Greensburg, PA (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
An industrial ultrasonic inspection system is capable of scanning for discontinuities in relatively thick solid objects such as solid core steel alloy turbine shafts. A phased array probe located on the turbine shaft periphery transmits ultrasonic pulses in a sector-shaped scanning field within the shaft that includes the inner 50% core volume that is of special interest in non-destructive evaluation and inspection. Staggered pulse firing alone or in combination with variable pulse repetition frequency (PRF) may be utilized in order to balance image quality with inspection speed. Discontinuities are identified by analysis of reflected echo waveform energy. Discontinuity size and position within the inspected object is correlated with an equivalent reflector size (ERS) by the Distance-Gain-Size (DGS) method.