CA2949220C - System and method of measuring defects in ferromagnetic materials - Google Patents
System and method of measuring defects in ferromagnetic materials Download PDFInfo
- Publication number
- CA2949220C CA2949220C CA2949220A CA2949220A CA2949220C CA 2949220 C CA2949220 C CA 2949220C CA 2949220 A CA2949220 A CA 2949220A CA 2949220 A CA2949220 A CA 2949220A CA 2949220 C CA2949220 C CA 2949220C
- Authority
- CA
- Canada
- Prior art keywords
- ferromagnetic material
- magnetic field
- magnetometers
- data points
- location
- 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
- 230000007547 defect Effects 0.000 title claims abstract description 206
- 239000003302 ferromagnetic material Substances 0.000 title claims abstract description 186
- 238000000034 method Methods 0.000 title claims description 60
- 230000005291 magnetic effect Effects 0.000 claims abstract description 245
- 239000000463 material Substances 0.000 claims abstract description 49
- 230000003628 erosive effect Effects 0.000 claims description 17
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 238000012512 characterization method Methods 0.000 abstract description 6
- 230000002950 deficient Effects 0.000 abstract description 2
- 230000005415 magnetization Effects 0.000 description 17
- 238000001514 detection method Methods 0.000 description 15
- 230000000875 corresponding effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 7
- 239000013598 vector Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 241001124569 Lycaenidae Species 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 238000003491 array Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000012732 spatial analysis Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012731 temporal analysis Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000008694 Humulus lupulus Nutrition 0.000 description 1
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000013832 Valeriana officinalis Nutrition 0.000 description 1
- 244000126014 Valeriana officinalis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005404 magnetometry Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 235000016788 valerian Nutrition 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
- G01N2021/8864—Mapping zones of defects
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461994961P | 2014-05-18 | 2014-05-18 | |
| US61/994,961 | 2014-05-18 | ||
| PCT/US2015/031092 WO2015179237A1 (en) | 2014-05-18 | 2015-05-15 | System and method of measuring defects in ferromagnetic materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2949220A1 CA2949220A1 (en) | 2015-11-26 |
| CA2949220C true CA2949220C (en) | 2019-01-08 |
Family
ID=53366261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2949220A Active CA2949220C (en) | 2014-05-18 | 2015-05-15 | System and method of measuring defects in ferromagnetic materials |
Country Status (12)
| Country | Link |
|---|---|
| US (2) | US9651471B2 (enExample) |
| EP (2) | EP3146323B1 (enExample) |
| JP (2) | JP6637908B2 (enExample) |
| KR (3) | KR102085752B1 (enExample) |
| CN (2) | CN106537134B (enExample) |
| AU (2) | AU2015264529B2 (enExample) |
| BR (2) | BR122018009767B1 (enExample) |
| CA (1) | CA2949220C (enExample) |
| MX (2) | MX358987B (enExample) |
| RU (2) | RU2678949C2 (enExample) |
| SG (3) | SG10201803084VA (enExample) |
| WO (1) | WO2015179237A1 (enExample) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2949220C (en) | 2014-05-18 | 2019-01-08 | The Charles Stark Draper Laboratory, Inc. | System and method of measuring defects in ferromagnetic materials |
| US9743370B2 (en) | 2015-04-28 | 2017-08-22 | The Charles Stark Draper Laboratory, Inc. | Wireless network for sensor array |
| EP3314247B1 (en) | 2015-06-29 | 2025-07-30 | The Charles Stark Draper Laboratory, Inc. | System and method for characterizing ferromagnetic material |
| US10845432B2 (en) | 2016-06-30 | 2020-11-24 | The Charles Stark Draper Laboratory, Inc. | Calibration and monitoring for 3-axis magnetometer arrays of arbitrary geometry |
| RU2637376C1 (ru) * | 2016-07-28 | 2017-12-04 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Аппроксимационный способ определения геометрических размеров дефектов сплошности в ферромагнитных изделиях и устройство для его осуществления |
| US10551349B2 (en) | 2016-08-08 | 2020-02-04 | The Charles Stark Draper Laboratory, Inc. | Method for determining defect depth in ferromagnetic structures based on magnetic flux leakage direction |
| US10267693B2 (en) * | 2016-08-26 | 2019-04-23 | General Electric Company | System and method for measuring torque on a rotating component |
| JP6447641B2 (ja) * | 2016-11-04 | 2019-01-09 | 横河電機株式会社 | 減肉検出装置、減肉検出システム、減肉検出方法及びプログラム |
| US11215584B2 (en) | 2016-11-04 | 2022-01-04 | Yokogawa Electric Corporation | Material defect detection device, material defect detection system, material defect detection method, and non-transitory computer readable storage medium |
| US10060861B2 (en) | 2017-01-10 | 2018-08-28 | Sunspring America, Inc. | Technologies for identifying defects |
| US10564127B2 (en) | 2017-03-07 | 2020-02-18 | The Charles Stark Draper Laboratory, Inc. | Augmented reality visualization for pipe inspection |
| US10222350B2 (en) * | 2017-07-12 | 2019-03-05 | International Business Machines Corporation | High sensitivity force gauge with parallel dipole line trap system |
| CA2979118A1 (en) * | 2017-09-12 | 2019-03-12 | Kal Tire | Method of and apparatus for inspecting a ferromagnetic object |
| WO2019083923A1 (en) | 2017-10-23 | 2019-05-02 | Tech4Imaging Llc | TOMOGRAPHY BY DIFFERENTIAL MAGNETIC FIELD |
| JP2021502558A (ja) * | 2017-11-13 | 2021-01-28 | エクソンモービル リサーチ アンド エンジニアリング カンパニーＥｘｘｏｎ Ｒｅｓｅａｒｃｈ Ａｎｄ Ｅｎｇｉｎｅｅｒｉｎｇ Ｃｏｍｐａｎｙ | 非破壊材料検査の方法及びシステム |
| CN111480072A (zh) * | 2017-11-13 | 2020-07-31 | 埃克森美孚研究工程公司 | 使用无损材料检查系统的方法 |
| KR102312443B1 (ko) | 2018-06-12 | 2021-10-12 | 주식회사 엘지에너지솔루션 | 서지 방지 기능을 가진 커넥터 및 이를 포함하는 회로기판 |
| CN109668956A (zh) * | 2019-01-22 | 2019-04-23 | 中国海洋石油集团有限公司 | 隔水管焊缝缺陷交流电磁场阵列检测探头 |
| CN111665342B (zh) * | 2019-03-07 | 2023-07-04 | 中国石油化工股份有限公司 | 一种管道内检测数据分析系统 |
| JP6988854B2 (ja) * | 2019-03-28 | 2022-01-05 | 横河電機株式会社 | センサ装置、演算装置、パイプライン監視システム、演算方法およびプログラム |
| US20220308015A1 (en) * | 2019-06-28 | 2022-09-29 | Solmax International Inc. | Membrane inspection method based on magnetic field sensing |
| US20220326182A1 (en) * | 2019-08-28 | 2022-10-13 | Konica Minolta, Inc. | Information processing system for nondestructive inspection and nondestructive inspection method |
| CN111161243B (zh) * | 2019-12-30 | 2023-04-07 | 华南理工大学 | 基于样本增强的工业产品表面缺陷检测方法 |
| JP7314842B2 (ja) | 2020-03-13 | 2023-07-26 | 横河電機株式会社 | 磁化装置及び着磁方法 |
| JP7147801B2 (ja) | 2020-03-13 | 2022-10-05 | 横河電機株式会社 | 磁気探傷方法、磁界計測処理装置及び磁気探傷装置 |
| EP3910327A1 (en) * | 2020-05-11 | 2021-11-17 | Villari Holding B.V. | Sensor for detection and/or monitoring the growth of defects |
| GB2598537A (en) * | 2020-05-22 | 2022-03-09 | Speir Hunter Ltd | Stress concentration mapping in insulated pipework |
| JP7298637B2 (ja) | 2021-03-10 | 2023-06-27 | 横河電機株式会社 | 減肉検出システム、減肉検出方法及びプログラム |
| EP4509827A3 (en) | 2021-04-09 | 2025-04-30 | Villari Holding B.V. | Method of and system for detecting and/or monitoring the growth of defects |
| US11346811B1 (en) * | 2021-09-30 | 2022-05-31 | United States Pipe And Foundry Company, Llc | Method and apparatus for identifying discontinuity in wall of ferrous object |
| DE102022206680A1 (de) | 2022-06-30 | 2024-01-04 | Institut Dr. Foerster Gmbh & Co. Kg | Verfahren und Vorrichtung zur Streuflussprüfung |
| CN115096990A (zh) * | 2022-07-01 | 2022-09-23 | 西南石油大学 | 一种弯头冲蚀缺陷磁化与磁检测装置和方法 |
| US20240118241A1 (en) * | 2022-10-03 | 2024-04-11 | King Abdullah University Of Science And Technology | Remote field eddy current based system and method for corrosion inspection |
| CN118425287B (zh) * | 2024-04-29 | 2025-04-15 | 无锡学院 | 一种基于均匀平行感应电流流动特性的缺陷轮廓识别方法 |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131280U (enExample) * | 1975-04-15 | 1976-10-22 | ||
| JPH0772122A (ja) * | 1993-09-06 | 1995-03-17 | Babcock Hitachi Kk | 磁性材料内部欠陥の漏洩磁束探傷方法及びその装置 |
| US6320820B1 (en) * | 1999-09-20 | 2001-11-20 | Halliburton Energy Services, Inc. | High data rate acoustic telemetry system |
| US7844687B1 (en) | 1999-10-06 | 2010-11-30 | Gelvin David C | Method for internetworked hybrid wireless integrated network sensors (WINS) |
| US6625515B2 (en) * | 2000-12-21 | 2003-09-23 | Dofasco Inc. | Roll defect management process |
| RU2264617C2 (ru) | 2001-05-23 | 2005-11-20 | Горошевский Валерий Павлович | Способ бесконтактного выявления местоположения и характера дефектов металлических сооружений и устройство для его осуществления |
| US7305467B2 (en) | 2002-01-02 | 2007-12-04 | Borgia/Cummins, Llc | Autonomous tracking wireless imaging sensor network including an articulating sensor and automatically organizing network nodes |
| JP2004037216A (ja) * | 2002-07-03 | 2004-02-05 | Jfe Steel Kk | 漏洩磁束探傷方法 |
| US7423931B2 (en) | 2003-07-08 | 2008-09-09 | Lawrence Livermore National Security, Llc | Acoustic system for communication in pipelines |
| JP4087312B2 (ja) * | 2003-08-06 | 2008-05-21 | 東北電力株式会社 | 高感度磁気センサを用いた金属の劣化の検査方法及び装置 |
| US7941188B2 (en) | 2004-03-31 | 2011-05-10 | The Invention Science Fund I, Llc | Occurrence data detection and storage for generalized sensor networks |
| US20070115821A1 (en) * | 2005-10-26 | 2007-05-24 | Samsung Electro-Mechanics Co., Ltd. | Method for transmitting wireless data using piggyback |
| US7835226B2 (en) | 2005-12-20 | 2010-11-16 | Massachusetts Institute Of Technology | Communications and power harvesting system for in-pipe wireless sensor networks |
| FR2901611B1 (fr) * | 2006-05-24 | 2009-01-16 | Airbus France Sas | Dispositif de controle non destructif d'une piece par analyse de distribution du champ magnetique de fuite |
| US20090195401A1 (en) | 2008-01-31 | 2009-08-06 | Andrew Maroney | Apparatus and method for surveillance system using sensor arrays |
| FR2929008B1 (fr) * | 2008-03-20 | 2010-04-02 | Eads Europ Aeronautic Defence | Dispositif de surveillance de la structure d'un vehicule |
| GB2487572A (en) * | 2011-01-28 | 2012-08-01 | Ge Inspection Technologies Ltd | A non-destructive test method for automatic fastener inspection |
| WO2013019136A1 (en) | 2011-07-29 | 2013-02-07 | Petroliam Nasional Berhard (Petronas) | System and method for inspecting a subsea pipeline |
| US8841901B2 (en) | 2011-07-29 | 2014-09-23 | Valerian Goroshevskiy | System and method for inspecting a subsea pipeline |
| US8547982B2 (en) | 2011-11-23 | 2013-10-01 | King Fahd University Of Petroleum And Minerals | Wireless sensor network with energy efficient protocols |
| EP2607621A1 (en) * | 2011-12-21 | 2013-06-26 | Welltec A/S | Downhole mapping system |
| RU119117U1 (ru) * | 2012-02-22 | 2012-08-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный университет" | Датчик для дефектоскопии стальных стержней |
| GB201203719D0 (en) * | 2012-03-02 | 2012-04-18 | Speir Hunter Ltd | Fault detection for pipelines |
| CN102706955B (zh) * | 2012-05-31 | 2015-04-22 | 东北大学 | 基于单轴漏磁数据的管道缺陷特征提取方法及装置 |
| JP2013250114A (ja) * | 2012-05-31 | 2013-12-12 | Mie Univ | 強磁性体を含む構造物や材料のある時点からの塑性変形量を評価する方法 |
| US8447532B1 (en) | 2012-10-27 | 2013-05-21 | Valerian Goroshevskiy | Metallic constructions integrity assessment and maintenance planning method |
| US8542127B1 (en) | 2012-11-12 | 2013-09-24 | Valerian Goroshevskiy | Apparatus for the non-contact metallic constructions assessment |
| EP2725352A1 (en) | 2012-10-27 | 2014-04-30 | Valerian Goroshevskiy | Apparatus for non-contact metallic constructions assessment |
| US8953547B2 (en) | 2013-03-29 | 2015-02-10 | Olympus Corporation | Power-saving TDMA MAC for wireless body area networks |
| CA2949220C (en) | 2014-05-18 | 2019-01-08 | The Charles Stark Draper Laboratory, Inc. | System and method of measuring defects in ferromagnetic materials |
-
2015
- 2015-05-15 CA CA2949220A patent/CA2949220C/en active Active
- 2015-05-15 BR BR122018009767-1A patent/BR122018009767B1/pt active IP Right Grant
- 2015-05-15 EP EP15727761.7A patent/EP3146323B1/en active Active
- 2015-05-15 AU AU2015264529A patent/AU2015264529B2/en active Active
- 2015-05-15 KR KR1020197009027A patent/KR102085752B1/ko active Active
- 2015-05-15 CN CN201580025745.6A patent/CN106537134B/zh active Active
- 2015-05-15 WO PCT/US2015/031092 patent/WO2015179237A1/en not_active Ceased
- 2015-05-15 MX MX2016015157A patent/MX358987B/es active IP Right Grant
- 2015-05-15 RU RU2016149454A patent/RU2678949C2/ru active
- 2015-05-15 JP JP2016568883A patent/JP6637908B2/ja active Active
- 2015-05-15 CN CN201810570326.6A patent/CN108663431B/zh active Active
- 2015-05-15 SG SG10201803084VA patent/SG10201803084VA/en unknown
- 2015-05-15 SG SG10201803085QA patent/SG10201803085QA/en unknown
- 2015-05-15 SG SG11201609631WA patent/SG11201609631WA/en unknown
- 2015-05-15 EP EP18182385.7A patent/EP3413040B1/en active Active
- 2015-05-15 US US14/713,503 patent/US9651471B2/en active Active
- 2015-05-15 RU RU2018120007A patent/RU2680104C2/ru active
- 2015-05-15 BR BR112016026957-8A patent/BR112016026957B1/pt active IP Right Grant
- 2015-05-15 MX MX2018007612A patent/MX381793B/es unknown
- 2015-05-15 KR KR1020187016806A patent/KR102022955B1/ko active Active
- 2015-05-15 KR KR1020167035533A patent/KR20170012335A/ko not_active Ceased
-
2016
- 2016-04-29 US US15/142,842 patent/US9651472B2/en active Active
-
2018
- 2018-05-14 JP JP2018093051A patent/JP6640273B2/ja active Active
- 2018-05-22 AU AU2018203605A patent/AU2018203605B2/en active Active
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2949220C (en) | System and method of measuring defects in ferromagnetic materials | |
| US8949042B1 (en) | AUV pipeline inspection using magnetic tomography | |
| Liu et al. | State-of-the-art review of technologies for pipe structural health monitoring | |
| US9746444B2 (en) | Autonomous pipeline inspection using magnetic tomography | |
| KR101468033B1 (ko) | 수중 음향신호를 이용한 해저 전력케이블 고장점 탐지시스템 | |
| US20170350864A1 (en) | Metallic constructions monitoring and assessment in unstable zones of the earth's crust | |
| EP3314247A2 (en) | System and method for characterizing ferromagnetic material | |
| KR101203956B1 (ko) | 함정에 분포된 자기장 신호원 특성 분석 장치 및 방법과 그 시스템 | |
| Jarvis et al. | Performance evaluation of a magnetic field measurement NDE technique using a model assisted Probability of Detection framework | |
| CN104897771A (zh) | 三维漏磁检测缺陷轮廓重构方法及装置 | |
| CN113390955A (zh) | 交流电磁场裂纹可视化监测与评估方法 | |
| CN115290746B (zh) | 一种基于有限元分析的脉冲涡流探头构建方法及存储介质 | |
| KR101809666B1 (ko) | 삼각 센싱 기법을 이용한 결함 위치 추정방법 | |
| US11555865B1 (en) | Method for optimizing an electromagnetic measurement sensor array | |
| CN118426059A (zh) | 海底目标探测方法、装置、计算机设备和存储介质 | |
| Owada et al. | Examination to improve detection accuracy of the algorithm for detecting cracks on a distribution line | |
| CN117805701A (zh) | 一种水下铁磁性目标的工频磁场强度计算方法及装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20180530 |