CA2757488C - Appareil et methode d'inspection de structure lineaire - Google Patents
Appareil et methode d'inspection de structure lineaire Download PDFInfo
- Publication number
- CA2757488C CA2757488C CA2757488A CA2757488A CA2757488C CA 2757488 C CA2757488 C CA 2757488C CA 2757488 A CA2757488 A CA 2757488A CA 2757488 A CA2757488 A CA 2757488A CA 2757488 C CA2757488 C CA 2757488C
- Authority
- CA
- Canada
- Prior art keywords
- sensors
- pig
- magnetic
- pipeline
- flux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Appareil permettant de détecter les anomalies dans un long objet conducteur d'électricité à inspecter. L'objet peut être un pipeline ou tout autre tube creux. L'appareil peut avoir un générateur de champ magnétique et une panoplie de détecteurs espacés autour du générateur de champ. Comme un mouvement relatif, dans la direction longitudinale, est observé entre l'appareil et l'objet à inspecter, le champ (ou flux) magnétique mobile qui passe du générateur de champ vers l'objet à inspecter peut avoir tendance à faire en sorte que des courants de Foucault passent dans l'objet. Les détecteurs peuvent être espacés, sur le plan tant de l'axe que de la circonférence, pour permettre que la variation du flux magnétique, ou la divergence de courant de Foucault, soit détectée relativement à la position axiale par rapport au front d'onde du champ magnétique (ou, de façon équivalente, toute autre donnée connue comme le plan radial du point milieu du générateur de champ), soit relativement à la position circonférentielle autour de la périphérie de l'appareil telle que mesurée à partir d'une donnée angulaire - ou aux deux. Par la suite, le calcul post traitement peut avoir tendance à permettre que des inférences surviennent pour ce qui est de l'emplacement, de la taille, de la forme et peut-être même de la nature des anomalies repérées dans l'objet. Les détecteurs, et possiblement le générateur de champ entier, peuvent être entretenus à une certaine distance de l'objet à inspecter, par exemple par un boîtier scellé qui pourrait protéger les détecteurs et réduire la nécessité ainsi que les coûts de l'entretien. Le générateur de champ peut comprendre deux pôles primaires de nature semblable, maintenus dos à dos sans contact, et peut comprendre des circuits magnétiques secondaires placés pour façonner le flux du circuit magnétique primaire en une forme plus concentrée par rapport à l'objet à inspecter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2757488A CA2757488C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2757488A CA2757488C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
| CA2571893A CA2571893C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2571893A Division CA2571893C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2757488A1 CA2757488A1 (fr) | 2008-06-21 |
| CA2757488C true CA2757488C (fr) | 2013-02-26 |
Family
ID=39537618
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2571893A Active CA2571893C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
| CA2757488A Active CA2757488C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2571893A Active CA2571893C (fr) | 2006-12-21 | 2006-12-21 | Appareil et methode d'inspection de structure lineaire |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2571893C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11674630B2 (en) * | 2018-08-08 | 2023-06-13 | Pure Technologies Ltd | Method and apparatus to detect flaws in metallic pipe |
-
2006
- 2006-12-21 CA CA2571893A patent/CA2571893C/fr active Active
- 2006-12-21 CA CA2757488A patent/CA2757488C/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2571893C (fr) | 2014-02-11 |
| CA2757488A1 (fr) | 2008-06-21 |
| CA2571893A1 (fr) | 2008-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |