Invention Grant
US07750626B2 Method and apparatus for eddy current detection of material discontinuities
失效
用于材料不连续性涡流检测的方法和装置
- Patent Title: Method and apparatus for eddy current detection of material discontinuities
- Patent Title (中): 用于材料不连续性涡流检测的方法和装置
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Application No.: US11372126Application Date: 2006-03-10
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Publication No.: US07750626B2Publication Date: 2010-07-06
- Inventor: J. H. Vivier Lefebvre , Catalin V. Mandache
- Applicant: J. H. Vivier Lefebvre , Catalin V. Mandache
- Applicant Address: CA Ottawa, Ontario CA Ottawa, Ontario
- Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian Government,National Research Council of Canada
- Current Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian Government,National Research Council of Canada
- Current Assignee Address: CA Ottawa, Ontario CA Ottawa, Ontario
- Agency: Raggio & Dinnin, P.C.
- Main IPC: G01N27/82
- IPC: G01N27/82 ; G01R33/12
Abstract:
A method of eddy current testing without the need for lift-off compensation. Signal response features similar to those used in pulsed eddy current techniques are applied to conventional (harmonic) eddy current methods. The described method provides advantages in terms of data storage, since only two response parameters, the amplitude and phase, are sufficient to reconstruct any sinusoidal signal, therefore allowing for scanning of large surfaces.
Public/Granted literature
- US20060202689A1 Method and apparatus for eddy current detection of material discontinuities Public/Granted day:2006-09-14
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