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.

Date of Patent:
Nov. 14, 2023

Filed:

Mar. 25, 2020
Applicant:

The University of Sheffield, Sheffield, GB;

Inventors:

Matthew Brown, Sheffield, GB;

Peter Lawrence Crawforth, Sheffield, GB;

Bradley Peter Wynne, Glasgow, GB;

Hassan Ghadbeigi, Sheffield, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/207 (2018.01); G01N 23/20 (2018.01); G01N 33/20 (2019.01); G01N 23/20025 (2018.01); G01N 33/2045 (2019.01);
U.S. Cl.
CPC ...
G01N 23/2073 (2013.01); G01N 23/207 (2013.01); G01N 23/20025 (2013.01); G01N 33/20 (2013.01); G01N 33/2045 (2019.01); G01N 2223/1003 (2013.01); G01N 2223/204 (2013.01); G01N 2223/646 (2013.01); G01N 2223/6462 (2013.01);
Abstract

A method of non-destructive detection of surface and near surface abnormalities in a metallic product. The method comprises positioning a sample having a surface under a source of an incident radiation. The surface of the sample is then irradiated with the incident radiation from the source. A scattered radiation is detected and a radiation pattern from the detected scattered radiation is produced. Said radiation pattern is then analysed and the output indicative of the scattered radiation from the sample is produced. Said produced output is then compared with a threshold value, the threshold value indicative of a maximum acceptable detected surface abnormality. Finally, the presence of a surface abnormality is identified when the output exceeds the threshold value.


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