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:
Jan. 29, 2019
Filed:
Jan. 09, 2013
Applicant:
Isis Innovation Limited, Summertown, Oxford, Oxfordshire, GB;
Inventor:
Kamaljit Singh Chana, Surrey, GB;
Assignee:
Oxford University Innovation Limited, Oxford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/90 (2006.01);
U.S. Cl.
CPC ...
G01N 27/90 (2013.01); G01M 13/021 (2013.01); G01N 27/9046 (2013.01);
Abstract
A method for monitoring local defects in a rotating engine component such as a gear uses one or more eddy current sensor(s) arranged to interact with the engine component as it is rotating during service. The eddy current sensor(s) may be carried by one or more teeth of a monitoring gear. A device is arranged to measure an output signal from the eddy current sensor(s) resulting from interaction with the rotating engine component. The output signal is processed so as to detect a change in shape of the output signal indicative of a local defect.