FR3071611B1 - METHOD AND DEVICE FOR NON-DESTRUCTIVE INSPECTION OF AN AERONAUTICAL PART - Google Patents
METHOD AND DEVICE FOR NON-DESTRUCTIVE INSPECTION OF AN AERONAUTICAL PART Download PDFInfo
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- FR3071611B1 FR3071611B1 FR1759022A FR1759022A FR3071611B1 FR 3071611 B1 FR3071611 B1 FR 3071611B1 FR 1759022 A FR1759022 A FR 1759022A FR 1759022 A FR1759022 A FR 1759022A FR 3071611 B1 FR3071611 B1 FR 3071611B1
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- derivative
- estimation
- instants
- converted
- function
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- 238000000034 method Methods 0.000 title abstract 3
- 238000007689 inspection Methods 0.000 title 1
- 238000009659 non-destructive testing Methods 0.000 abstract 1
- 238000001931 thermography Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 abstract 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30164—Workpiece; Machine component
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Quality & Reliability (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Radiation Pyrometers (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Procédé et dispositif de contrôle non destructif d'une pièce aéronautique Le procédé comprend : – l'obtention de plusieurs images de la pièce à plusieurs instants d'acquisition via un système de thermographie infrarouge active, chaque pixel d'une image ayant une amplitude représentant une caractéristique de la pièce à un instant d'acquisition en un point de la pièce ; – l'estimation, à partir des images, d'une dérivée d'une première fonction de cette caractéristique par rapport à une deuxième fonction du temps ; et – la vérification de la pièce à partir de la dérivée estimée ; l'estimation comprenant, pour chaque dérivée estimée : – la sélection (F10) de plusieurs instants d'estimation de cette dérivée ; – l'application (F20) de la première fonction aux amplitudes des pixels ; – l'application (F30) de la deuxième fonction aux instants d'acquisition et aux instants d'estimation de la dérivée, ceux-ci étant sélectionnés de sorte à avoir des instants d'estimation convertis uniformément espacés ; et – l'estimation (F60) pour chaque instant d'estimation converti de la dérivée à partir des amplitudes converties correspondant aux instants d'acquisition convertis appartenant à un intervalle d'estimation déterminé (F50) autour de l'instant d'estimation converti.Method and device for non-destructive testing of an aeronautical part The method comprises: obtaining several images of the part at several acquisition times via an active infrared thermography system, each pixel of an image having an amplitude representing a characteristic of the part at a time of acquisition at a point of the part; The estimation, from the images, of a derivative of a first function of this characteristic with respect to a second function of time; and - the verification of the part from the estimated derivative; the estimate comprising, for each estimated derivative: - the selection (F10) of several instants for estimating this derivative; - the application (F20) of the first function to the amplitudes of the pixels; - the application (F30) of the second function to the acquisition instants and to the derivative estimation instants, the latter being selected so as to have uniformly spaced converted estimation instants; and - the estimate (F60) for each converted estimation instant of the derivative from the converted amplitudes corresponding to the converted acquisition instants belonging to a determined estimation interval (F50) around the converted estimation instant .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759022A FR3071611B1 (en) | 2017-09-28 | 2017-09-28 | METHOD AND DEVICE FOR NON-DESTRUCTIVE INSPECTION OF AN AERONAUTICAL PART |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759022 | 2017-09-28 | ||
FR1759022A FR3071611B1 (en) | 2017-09-28 | 2017-09-28 | METHOD AND DEVICE FOR NON-DESTRUCTIVE INSPECTION OF AN AERONAUTICAL PART |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3071611A1 FR3071611A1 (en) | 2019-03-29 |
FR3071611B1 true FR3071611B1 (en) | 2020-08-28 |
Family
ID=60138630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1759022A Active FR3071611B1 (en) | 2017-09-28 | 2017-09-28 | METHOD AND DEVICE FOR NON-DESTRUCTIVE INSPECTION OF AN AERONAUTICAL PART |
Country Status (1)
Country | Link |
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FR (1) | FR3071611B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3108196B1 (en) | 2020-03-13 | 2022-07-15 | Safran | Method and system for non-destructive testing of an aeronautical part |
FR3117597B1 (en) | 2020-12-16 | 2024-04-12 | Safran | Non-destructive testing process for an aeronautical part |
FR3118489A1 (en) | 2020-12-28 | 2022-07-01 | Safran | Non-destructive testing method for an aeronautical part |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7724925B2 (en) * | 1999-12-02 | 2010-05-25 | Thermal Wave Imaging, Inc. | System for generating thermographic images using thermographic signal reconstruction |
US8577120B1 (en) * | 2009-11-05 | 2013-11-05 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Methods and systems for characterization of an anomaly using infrared flash thermography |
US9007466B2 (en) * | 2011-04-27 | 2015-04-14 | General Electric Company | System and method for thermographic inspection |
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2017
- 2017-09-28 FR FR1759022A patent/FR3071611B1/en active Active
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Publication number | Publication date |
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FR3071611A1 (en) | 2019-03-29 |
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