FR2917500A1 - Compensation automatique d'eloignement pour inspection par courants de foucault pulses - Google Patents
Compensation automatique d'eloignement pour inspection par courants de foucault pulses Download PDFInfo
- Publication number
- FR2917500A1 FR2917500A1 FR0853822A FR0853822A FR2917500A1 FR 2917500 A1 FR2917500 A1 FR 2917500A1 FR 0853822 A FR0853822 A FR 0853822A FR 0853822 A FR0853822 A FR 0853822A FR 2917500 A1 FR2917500 A1 FR 2917500A1
- Authority
- FR
- France
- Prior art keywords
- probe
- signal
- eddy current
- test
- specimen
- 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.)
- Withdrawn
Links
- 238000007689 inspection Methods 0.000 title claims description 18
- 239000000523 sample Substances 0.000 claims abstract description 80
- 230000007547 defect Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
- G01N27/9053—Compensating for probe to workpiece spacing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0711349A GB2450112B (en) | 2007-06-12 | 2007-06-12 | Automatic lift-off compensation for pulsed eddy current inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2917500A1 true FR2917500A1 (fr) | 2008-12-19 |
Family
ID=38331975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0853822A Withdrawn FR2917500A1 (fr) | 2007-06-12 | 2008-06-10 | Compensation automatique d'eloignement pour inspection par courants de foucault pulses |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8008913B2 (https=) |
| JP (1) | JP5406468B2 (https=) |
| CN (1) | CN101413923B (https=) |
| DE (1) | DE102008002883A1 (https=) |
| FR (1) | FR2917500A1 (https=) |
| GB (1) | GB2450112B (https=) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008024394A1 (de) * | 2008-05-15 | 2009-12-03 | V&M Deutschland Gmbh | Verfahren zur zerstörungsfreien Prüfung von Rohren |
| NL2003000C2 (nl) * | 2009-06-11 | 2010-12-15 | Roentgen Tech Dienst Bv | Werkwijze voor het bepalen van tenminste een eigenschap voor een elektrisch geleidend voorwerp. |
| EP2574956A1 (en) * | 2011-09-30 | 2013-04-03 | GE Inspection Technologies Ltd | Ultrasound imaging system and method with side lobe suppression via coherency factor weighting |
| JP5692007B2 (ja) * | 2011-11-02 | 2015-04-01 | トヨタ自動車株式会社 | 溶射皮膜の品質評価方法 |
| JP5948004B2 (ja) * | 2012-04-28 | 2016-07-06 | 東日本旅客鉄道株式会社 | 渦流探傷方法と渦流探傷装置 |
| US9091664B2 (en) | 2012-06-07 | 2015-07-28 | Thomas Krause | Pulsed eddy current sensor for precision measurement at-large lift-offs on metallic surfaces |
| CN102841137B (zh) * | 2012-09-30 | 2014-12-03 | 爱德森（厦门）电子有限公司 | 一种旋转涡流检测干扰信号补偿方法 |
| CN103076390B (zh) * | 2012-12-27 | 2015-11-04 | 佛山市斯派力管业科技股份有限公司 | 应用于涡流探伤的定位方法、装置及涡流探伤仪 |
| CN103257182B (zh) * | 2013-06-07 | 2015-11-18 | 电子科技大学 | 一种脉冲涡流缺陷定量检测方法及检测系统 |
| CN103336049B (zh) * | 2013-06-27 | 2016-03-16 | 电子科技大学 | 一种消除提离效应的脉冲涡流检测方法及装置 |
| CN103399083B (zh) * | 2013-08-27 | 2015-09-16 | 南昌航空大学 | 一种脉冲涡流检测提离效应的抑制方法 |
| JP6228792B2 (ja) * | 2013-09-20 | 2017-11-08 | 東日本旅客鉄道株式会社 | 渦電流探傷方法と渦電流探傷装置 |
| CN103808795B (zh) * | 2014-02-11 | 2017-05-31 | 湖州师范学院 | 一种新型脉冲检测算法 |
| JP6356579B2 (ja) | 2014-11-14 | 2018-07-11 | 株式会社東芝 | 渦電流探傷装置および渦電流探傷方法 |
| CN104330469B (zh) * | 2014-11-28 | 2017-04-26 | 南昌航空大学 | 基于高通滤波的脉冲涡流检测提离效应抑制方法 |
| US9518851B2 (en) | 2014-12-03 | 2016-12-13 | General Electric Company | Probes for inspection system for substantially round hole |
| JP6175091B2 (ja) * | 2015-03-05 | 2017-08-02 | 非破壊検査株式会社 | 渦電流検査装置及び渦電流検査方法 |
| CN106404899A (zh) * | 2016-08-29 | 2017-02-15 | 爱德森（厦门）电子有限公司 | 一种涡流检测提离晃动补偿方法 |
| CN109764800A (zh) * | 2019-01-15 | 2019-05-17 | 西南石油大学 | 一种基于涡流热成像阵列的管道腐蚀壁厚检测系统 |
| CN112129830B (zh) * | 2020-09-02 | 2023-09-12 | 中国人民解放军空军工程大学航空机务士官学校 | 基于涡流电导率的飞机金属结构烧伤检测方法 |
| CN112800843B (zh) * | 2020-12-30 | 2025-01-17 | 浙江树人学院（浙江树人大学） | 针对三层导电结构缺陷的检测方法 |
| CN113075463B (zh) * | 2021-03-01 | 2022-05-24 | 北京航空航天大学 | 一种用于毫米波聚焦天线测量的微分探头 |
| CN113671022B (zh) * | 2021-07-14 | 2023-06-23 | 南京航空航天大学 | 基于脉冲涡流检测探头线圈间距交叉点的提离测量方法 |
| CN113640369B (zh) * | 2021-07-19 | 2023-09-26 | 哈尔滨工程大学 | 适用于金属表面裂纹的交流电磁场提离效应补偿方法 |
| CN113673359A (zh) * | 2021-07-27 | 2021-11-19 | 浙江浙能技术研究院有限公司 | 一种基于深度学习的提高涡流检测金属缺陷准确率的方法 |
| CN115406959B (zh) * | 2022-08-15 | 2025-02-28 | 四川德源管道科技股份有限公司 | 一种涡流检测电路、方法、系统、存储介质及终端 |
| CN115825219B (zh) * | 2022-11-24 | 2026-03-06 | 南京工业大学 | 一种消除提离效应的脉冲涡流探头及检测方法 |
| CN116068045B (zh) * | 2023-04-06 | 2023-06-02 | 中国石油大学(华东) | 一种抑制提离效应干扰的复合结构缺陷识别方法 |
| CN119665796B (zh) * | 2024-12-25 | 2025-12-09 | 北京理工大学 | 一种量化提离波动对电涡流式金属膜厚测量误差的方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383218A (en) * | 1978-12-29 | 1983-05-10 | The Boeing Company | Eddy current flow detection including compensation for system variables such as lift-off |
| US4303885A (en) * | 1979-06-18 | 1981-12-01 | Electric Power Research Institute, Inc. | Digitally controlled multifrequency eddy current test apparatus and method |
| US4609870A (en) * | 1981-03-27 | 1986-09-02 | Hocking Electronics Limited | Lift off compensation of eddy current crack detection system by controlling damping resistance of oscillator |
| US4620152A (en) * | 1983-01-11 | 1986-10-28 | Amf Tuboscope, Inc. | Lift-off compensation of eddy current probes by translating without rotation the X-Y coordinate plot of the complex locus of the probe output |
| JPH01316655A (ja) * | 1988-06-16 | 1989-12-21 | Nippon Hihakai Keisoku Kenkyusho:Kk | 渦流探傷装置 |
| JP2622536B2 (ja) * | 1990-03-16 | 1997-06-18 | 株式会社日本非破壊計測研究所 | 渦流探傷方法及びその装置 |
| US5233297A (en) * | 1990-08-06 | 1993-08-03 | Atlantic Richfield Company | Transient electromagnetic method and apparatus for inspecting conductive objects utilizing sensors that move during inspection |
| US5394084A (en) * | 1991-12-23 | 1995-02-28 | The Boeing Company | Method and apparatus for reducing errors in eddy-current conductivity measurements due to lift-off by interpolating between a plurality of reference conductivity measurements |
| US5371461A (en) * | 1992-06-26 | 1994-12-06 | General Electric Company | Apparatus and method for compensating for variations in the lift-off of eddy current surface inspection array elements |
| US6291992B1 (en) * | 1996-07-12 | 2001-09-18 | Shell Oil Company | Eddy current inspection technique |
| DE69806770T2 (de) * | 1997-09-08 | 2003-02-20 | Seppta Research (Ontario) Inc., Nobzko Rockwood | Drehkopf mit mindestens zwei werkzeugen |
| JP2000046802A (ja) * | 1998-07-27 | 2000-02-18 | Non-Destructive Inspection Co Ltd | 渦流探傷用センサヘッド |
| JP3758439B2 (ja) * | 1999-12-20 | 2006-03-22 | 日本精工株式会社 | 曲面を有する被検査体の欠陥を曲面に沿って非接触で検出する方法 |
| US6344741B1 (en) | 2000-06-20 | 2002-02-05 | Her Majesty The Queen As Represented By The Minister Of National Defence In Right Of Canada | Pulsed eddy current method for detection of corrosion in multilayer structures using the lift-off point of intersection |
| CA2312101C (en) | 2000-06-22 | 2004-01-06 | Sylvain R. Giguere | In-service detection of corrosion in multi-layer structure using the lift-off point of intersection |
| US6570379B2 (en) * | 2000-08-24 | 2003-05-27 | Shell Oil Company | Method for inspecting an object of electrically conducting material |
| US6593737B2 (en) * | 2000-08-24 | 2003-07-15 | Shell Oil Company | Method for measuring the wall thickness of an electrically conductive object |
| ES2254911T3 (es) * | 2002-02-26 | 2006-06-16 | Shell Internationale Research Maatschappij B.V. | Metodo para determinar el perfil de una superficie de un objeto. |
| US7005851B2 (en) * | 2003-09-30 | 2006-02-28 | General Electric Company | Methods and apparatus for inspection utilizing pulsed eddy current |
-
2007
- 2007-06-12 GB GB0711349A patent/GB2450112B/en not_active Expired - Fee Related
-
2008
- 2008-06-06 US US12/134,317 patent/US8008913B2/en not_active Expired - Fee Related
- 2008-06-10 FR FR0853822A patent/FR2917500A1/fr not_active Withdrawn
- 2008-06-10 JP JP2008151156A patent/JP5406468B2/ja not_active Expired - Fee Related
- 2008-06-11 DE DE102008002883A patent/DE102008002883A1/de not_active Ceased
- 2008-06-12 CN CN200810131433.5A patent/CN101413923B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008002883A1 (de) | 2008-12-24 |
| GB2450112B (en) | 2010-12-08 |
| JP5406468B2 (ja) | 2014-02-05 |
| CN101413923A (zh) | 2009-04-22 |
| CN101413923B (zh) | 2013-08-21 |
| US20080309328A1 (en) | 2008-12-18 |
| GB0711349D0 (en) | 2007-07-25 |
| JP2009002945A (ja) | 2009-01-08 |
| GB2450112A (en) | 2008-12-17 |
| US8008913B2 (en) | 2011-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20160229 |