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公开(公告)号：US20170131223A1
公开(公告)日：2017-05-11
申请号：US15318962
申请日：2015-06-01
发明人： François HILD , Hugo LECLERC , Stéphane ROUX
CPC分类号： G01N23/046 , G01B15/06 , G01N3/08 , G01N2223/304 , G01N2223/607
摘要： Tomographs comprise at least one first emission source, one first matrix detector and calculation means arranged to produce an initial tomograph of an object on the basis of radiographs arising from the first matrix detector taken from various angles. The tomography scanner comprises a second emission source and a second matrix detector arranged so that, when the object is subjected to a stress which is known at a given instant in time, the calculation means determine the changes in the object subjected to stress based only on the information from a first radiograph of the object under stress arising from the first matrix detector, from a second radiograph of the object under stress arising from the second matrix detector and the initial tomograph, the first radiograph and the second radiograph being taken at the same given instant in time.
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公开(公告)号：US20210003389A1
公开(公告)日：2021-01-07
申请号：US16976425
申请日：2018-02-28
发明人： François HILD , Hugo LECLERC , Stéphane ROUX
摘要： A computer-implemented method for identifying mechanical parameters of an object subjected to mechanical stress is provided. The method comprises a step of acquiring, by an imaging means, images of the object taken before and during the application of the mechanical stress, three steps of calculating the effects due to the stress carried out either on the basis of the modeling of the recorded images or on the basis of a theoretical mechanical modeling of the stress, a step of defining a functional equal to the difference between the two models and a last step of minimizing said functional so that the experimental model is as close as possible to the theoretical mechanical model. Additional measurements make it possible to refine the method.
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公开(公告)号：US20180195978A1
公开(公告)日：2018-07-12
申请号：US15106154
申请日：2014-12-09
发明人： Julien SCHNEIDER , Francois HILD , Hugo LECLERC , Stephane ROUX
IPC分类号： G01N23/046 , G06T7/00
CPC分类号： G01N23/046 , G01N2223/1016 , G01N2223/419 , G01N2223/425 , G01N2223/426 , G01N2223/615 , G01N2223/63 , G01N2223/645 , G06K9/00624 , G06T7/001 , G06T2207/10081 , G06T2207/30164
摘要： A method of characterizing a part including obtaining an X-ray tomography image of the part and then a step of correlating the image with a reference wherein the correlation step includes searching among a predefined set of X-ray tomography image transformations for a transformation that minimizes the difference between the image and the reference in order to characterize the inside of the part.
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