DE102008002883A1 - Automatische Lift-Off-Kompensation für Pulswirbelstromprüfung - Google Patents
Automatische Lift-Off-Kompensation für Pulswirbelstromprüfung Download PDFInfo
- Publication number
- DE102008002883A1 DE102008002883A1 DE102008002883A DE102008002883A DE102008002883A1 DE 102008002883 A1 DE102008002883 A1 DE 102008002883A1 DE 102008002883 A DE102008002883 A DE 102008002883A DE 102008002883 A DE102008002883 A DE 102008002883A DE 102008002883 A1 DE102008002883 A1 DE 102008002883A1
- Authority
- DE
- Germany
- Prior art keywords
- probe
- signal
- lift
- test
- reference signal
- 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.)
- Ceased
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 239000000523 sample Substances 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000005259 measurement Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000007847 structural defect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 35
- 239000000463 material Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 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
- 230000004807 localization Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 230000003313 weakening effect Effects 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0711349.1 | 2007-06-12 | ||
| GB0711349A GB2450112B (en) | 2007-06-12 | 2007-06-12 | Automatic lift-off compensation for pulsed eddy current inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008002883A1 true DE102008002883A1 (de) | 2008-12-24 |
Family
ID=38331975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008002883A Ceased DE102008002883A1 (de) | 2007-06-12 | 2008-06-11 | Automatische Lift-Off-Kompensation für Pulswirbelstromprüfung |
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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391988A (en) | 1990-03-16 | 1995-02-21 | Kabushiki Kaisha Nihon Hihakai Keisoku Kenkyusho | Method and apparatus for detecting flaws within a conductive object while cancelling the effects of variation in distance between the detection apparatus and the conductive object |
| CA2312101A1 (en) | 2000-06-22 | 2001-12-22 | Sylvain R. Giguere | In-service detection of corrosion in multi-layer structure using the lift-off point of intersection |
| 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 |
| US6573712B2 (en) | 1999-12-20 | 2003-06-03 | Nsk Ltd. | Non-destructive inspection device |
Family Cites Families (15)
| 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 |
| 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 |
| 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391988A (en) | 1990-03-16 | 1995-02-21 | Kabushiki Kaisha Nihon Hihakai Keisoku Kenkyusho | Method and apparatus for detecting flaws within a conductive object while cancelling the effects of variation in distance between the detection apparatus and the conductive object |
| US6573712B2 (en) | 1999-12-20 | 2003-06-03 | Nsk Ltd. | Non-destructive inspection device |
| 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 |
| CA2312101A1 (en) | 2000-06-22 | 2001-12-22 | Sylvain R. Giguere | In-service detection of corrosion in multi-layer structure using the lift-off point of intersection |
Also Published As
| Publication number | Publication date |
|---|---|
| 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 |
| FR2917500A1 (fr) | 2008-12-19 |
| US8008913B2 (en) | 2011-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| R016 | Response to examination communication | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |