JPS57500664A - - Google Patents
Info
- Publication number
- JPS57500664A JPS57500664A JP56501635A JP50163581A JPS57500664A JP S57500664 A JPS57500664 A JP S57500664A JP 56501635 A JP56501635 A JP 56501635A JP 50163581 A JP50163581 A JP 50163581A JP S57500664 A JPS57500664 A JP S57500664A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
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
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 |
|---|---|---|---|
| GB8016887 | 1980-05-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57500664A true JPS57500664A (en, 2012) | 1982-04-15 |
| JPH0338542B2 JPH0338542B2 (en, 2012) | 1991-06-11 |
Family
ID=10513586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56501635A Expired JPH0338542B2 (en, 2012) | 1980-05-22 | 1981-05-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4496904A (en, 2012) |
| JP (1) | JPH0338542B2 (en, 2012) |
| DE (1) | DE3148640T1 (en, 2012) |
| GB (1) | GB2078965B (en, 2012) |
| WO (1) | WO1981003381A1 (en, 2012) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495587A (en) * | 1981-12-08 | 1985-01-22 | Bethlehem Steel Corporation | Automatic nondestructive roll defect inspection system |
| US4651094A (en) * | 1984-07-16 | 1987-03-17 | John Wallace | Accuracy control subsystem |
| US4652822A (en) * | 1984-07-16 | 1987-03-24 | John Wallace | Multi-frequency eddy-current system and method |
| DE3525250A1 (de) * | 1984-07-16 | 1986-01-16 | Casting Analysis Corp., Broadway, Va. | Genauigkeitsregeluntersystem und verfahren |
| EP0251648A3 (en) * | 1986-06-24 | 1989-05-24 | British Aerospace Public Limited Company | Apparatus for locating the geometrical centre of a symmetrical bore |
| US5055784A (en) * | 1987-12-07 | 1991-10-08 | American Research Corporation Of Virginia | Bridgeless system for directly measuring complex impedance of an eddy current probe |
| US4922201A (en) * | 1989-01-09 | 1990-05-01 | The United States Of America As Represented By The Secretary Of The Navy | Eddy current method for measuring electrical resistivity and device for providing accurate phase detection |
| US4924182A (en) * | 1989-01-09 | 1990-05-08 | The United States Of America As Represented By The Secretary Of The Navy | Eddy current method to measure distance between scanned surface and a subsurface defect |
| USH879H (en) * | 1989-06-30 | 1991-01-01 | The United States Of America As Represented By The Secretary Of The Navy | Method and device for inspecting circumferentially conducting materials |
| JPH07503320A (ja) * | 1992-01-31 | 1995-04-06 | ノースロップ・コーポレーション | アレイ状渦電流プローブシステム |
| DE10229735A1 (de) * | 2002-07-02 | 2004-01-22 | rinas Gerätetechnik GmbH | Verfahren zum Erkennen und Lokalisieren von Materialfehlern |
| CA2504908A1 (en) * | 2004-04-23 | 2005-10-23 | Innovative Materials Testing Technologies, Inc. | Apparatus and method for eddy-current magnetic scanning a surface to detect sub-surface cracks around a boundary |
| US11680867B2 (en) | 2004-06-14 | 2023-06-20 | Wanda Papadimitriou | Stress engineering assessment of risers and riser strings |
| US11710489B2 (en) | 2004-06-14 | 2023-07-25 | Wanda Papadimitriou | Autonomous material evaluation system and method |
| US7626383B1 (en) | 2005-04-25 | 2009-12-01 | Innovative Materials Testing Technologies, Inc. | Apparatus and method for holding a rotatable eddy-current magnetic probe, and for rotating the probe around a boundary |
| US7560920B1 (en) | 2005-10-28 | 2009-07-14 | Innovative Materials Testing Technologies, Inc. | Apparatus and method for eddy-current scanning of a surface to detect cracks and other defects |
| CA2927853C (en) * | 2013-10-22 | 2022-05-10 | Jentek Sensors, Inc. | Impedance instrument |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3302105A (en) * | 1964-08-26 | 1967-01-31 | Hugo L Libby | Eddy current nondestructive testing device using an oscilloscope to identify and locate irregularities in a test piece |
| US3693075A (en) * | 1969-11-15 | 1972-09-19 | Forster F M O | Eddy current system for testing tubes for defects,eccentricity,and wall thickness |
| FR2402871A1 (fr) * | 1977-09-09 | 1979-04-06 | Denis Emile | Procede permettant le controle non destructif par courants de foucault, dans des tubes, fils et pieces diverses, conducteurs de l'electricite |
| US4191922A (en) * | 1978-03-14 | 1980-03-04 | Republic Steel Corporation | Electromagnetic flaw detection system and method incorporating improved automatic coil error signal compensation |
| US4207520A (en) * | 1978-04-06 | 1980-06-10 | The United States Of America As Represented By The Secretary Of The Air Force | Multiple frequency digital eddy current inspection system |
| FR2443682A1 (fr) * | 1978-12-07 | 1980-07-04 | Commissariat Energie Atomique | Circuit de correction automatique d'un signal emis par un capteur differentiel desequilibre |
| FR2451032A1 (fr) * | 1979-03-09 | 1980-10-03 | Commissariat Energie Atomique | Appareil numerique pour le controle de pieces par courants de foucault |
-
1981
- 1981-05-19 WO PCT/GB1981/000089 patent/WO1981003381A1/en active Application Filing
- 1981-05-19 US US06/336,341 patent/US4496904A/en not_active Expired - Lifetime
- 1981-05-19 JP JP56501635A patent/JPH0338542B2/ja not_active Expired
- 1981-05-19 DE DE813148640T patent/DE3148640T1/de active Granted
- 1981-05-20 GB GB8115458A patent/GB2078965B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3148640T1 (de) | 1982-07-29 |
| JPH0338542B2 (en, 2012) | 1991-06-11 |
| GB2078965A (en) | 1982-01-13 |
| US4496904A (en) | 1985-01-29 |
| WO1981003381A1 (en) | 1981-11-26 |
| DE3148640C2 (en, 2012) | 1991-05-16 |
| GB2078965B (en) | 1984-05-31 |