FR2535056B1 - Sonde a courants de foucault a discrimination defaut-bruit - Google Patents
Sonde a courants de foucault a discrimination defaut-bruitInfo
- Publication number
- FR2535056B1 FR2535056B1 FR8314552A FR8314552A FR2535056B1 FR 2535056 B1 FR2535056 B1 FR 2535056B1 FR 8314552 A FR8314552 A FR 8314552A FR 8314552 A FR8314552 A FR 8314552A FR 2535056 B1 FR2535056 B1 FR 2535056B1
- Authority
- FR
- France
- Prior art keywords
- current probe
- edge current
- defect discrimination
- noise defect
- noise
- 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.)
- Expired
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
- G01N27/904—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 with two or more sensors
-
- 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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000414020A CA1201481A (fr) | 1982-10-22 | 1982-10-22 | Sonde a courant de foucault pouvant detecter le bruit du a une defectuosite |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2535056A1 FR2535056A1 (fr) | 1984-04-27 |
FR2535056B1 true FR2535056B1 (fr) | 1988-10-14 |
Family
ID=4123812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8314552A Expired FR2535056B1 (fr) | 1982-10-22 | 1983-09-13 | Sonde a courants de foucault a discrimination defaut-bruit |
Country Status (7)
Country | Link |
---|---|
US (1) | US4608534A (fr) |
JP (1) | JPS5992342A (fr) |
CA (1) | CA1201481A (fr) |
DE (1) | DE3336783A1 (fr) |
FR (1) | FR2535056B1 (fr) |
GB (1) | GB2129140B (fr) |
IT (1) | IT1194424B (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3410547A1 (de) * | 1984-03-22 | 1985-09-26 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen | Pruefgeraet zum untersuchen elektrisch leitender pruefteile |
JPS61134658A (ja) * | 1984-12-05 | 1986-06-21 | Hitachi Cable Ltd | 渦流探傷コイル |
US4808927A (en) * | 1987-02-19 | 1989-02-28 | Atomic Energy Of Canada Limited | Circumferentially compensating eddy current probe with alternately polarized receiver coil |
US4808924A (en) * | 1987-02-19 | 1989-02-28 | Atomic Energy Of Canada Limited | Circumferentially compensating eddy current probe with alternately polarized transmit coils and receiver coils |
US5140265A (en) * | 1989-12-20 | 1992-08-18 | Olympus Optical Co., Ltd | Eddy current flaw detecting endoscope apparatus which produces signals which control other devices |
JP2515596Y2 (ja) * | 1990-11-28 | 1996-10-30 | 株式会社豊田中央研究所 | 磁性部品の検査装置 |
GB2255184B (en) * | 1991-04-22 | 1995-08-16 | Tokyo Gas Co Ltd | Flaw detector for metal material |
GB2281399B (en) * | 1991-04-22 | 1995-08-16 | Tokyo Gas Co Ltd | Flaw detector for metal material |
US5418456A (en) * | 1992-06-17 | 1995-05-23 | Westinghouse Electric Corporation | Monitoring pilger forming operation by sensing periodic lateral displacement of workpiece |
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 |
CA2076205C (fr) * | 1992-08-14 | 1999-04-20 | Valentino S. Cecco | Sonde a courant de foucault differentiel a bracelets a bobinages multiples |
US5926020A (en) * | 1994-11-16 | 1999-07-20 | Samson; Rock | Eddy current hybrid probe with movable magnetic field altering member |
DE19819066A1 (de) * | 1998-04-29 | 1999-11-11 | F I T Messtechnik Gmbh | Prüfverfahren zur berührungslosen Erkennung von Ungleichmäßigkeiten in der Wanddicke von unzugänglichen metallischen Rohren |
US6165542A (en) * | 1998-12-23 | 2000-12-26 | United Technologies Corporation | Method for fabricating and inspecting coatings |
AU2279901A (en) | 1999-12-20 | 2001-07-03 | Henry Moncrieff O'connor | Method for generating and displaying complex data utilizing color-coded signals |
US20040257072A1 (en) * | 2003-06-19 | 2004-12-23 | Rock Samson | Dual-sensitivity eddy current test probe |
WO2006113504A2 (fr) * | 2005-04-14 | 2006-10-26 | Henry Moncrieff O'connor | Sondes de test electromagnetiques a champ prochetm et a champ mixte : champ prochetm - champ eloigne, utiles pour inspecter des tuyaux et des tubes ferromagnetiques tels que ceux utilises dans les echangeurs de chaleur |
WO2007056679A2 (fr) * | 2005-11-03 | 2007-05-18 | The Clock Spring Company L.P. | Réseau à courant de foucault convivial |
US7295004B2 (en) * | 2006-03-03 | 2007-11-13 | Gary Kroner | Eddy current probe and method of manufacture thereof |
DE102007027822B4 (de) | 2007-06-13 | 2013-12-12 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Induktiv arbeitende Sensoranordnung und Verfahren zum Beeinflussen des Messverhaltens einer Messspule |
US20090160437A1 (en) * | 2007-12-21 | 2009-06-25 | Carbon Steel Inspection, Inc. | Eddy Current Probe And Method Of Manufacture Thereof |
US8166821B2 (en) * | 2008-07-14 | 2012-05-01 | Eaton Corporation | Non-destructive test evaluation of welded claddings on rods of hydraulic cylinders used for saltwater, brackish and freshwater applications |
JP5800696B2 (ja) * | 2011-11-30 | 2015-10-28 | 日立交通テクノロジー株式会社 | リモートフィールド渦電流探傷システムおよびリモートフィールド渦電流探傷方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1370731A (en) * | 1916-11-02 | 1921-03-08 | Philip H Chase | Cable and method of making the same |
US2104646A (en) * | 1935-06-20 | 1938-01-04 | Pittsburgh Dry Stencil Company | Means for testing |
US2162710A (en) * | 1936-08-05 | 1939-06-20 | Gunn Ross | Apparatus and method for detecting defects in metallic objects |
GB520328A (en) * | 1938-05-16 | 1940-04-22 | Magnetic Analysis Corp | Magnetic analysis |
US2463778A (en) * | 1943-12-15 | 1949-03-08 | Rca Corp | Magnetic shielding |
US2555853A (en) * | 1945-04-16 | 1951-06-05 | Emmett M Irwin | Magnetic testing apparatus and method |
US2565191A (en) * | 1949-01-12 | 1951-08-21 | Armour Res Found | Eddy current shield in electromagnetic transducer head |
GB668177A (en) * | 1949-03-22 | 1952-03-12 | Superheater Co Ltd | Improvements in and relating to apparatus for testing materials by magnetic or electrical analysis |
US2855564A (en) * | 1955-10-14 | 1958-10-07 | Emmett M Irwin | Magnetic testing apparatus and method |
GB886760A (en) * | 1958-12-08 | 1962-01-10 | Shell Int Research | Improvements in and relating to apparatus for detecting and recording flaws, irregularities and other defects in materials capable of conducting an electric current or magnetic flux |
US3094658A (en) * | 1959-03-17 | 1963-06-18 | Halliburton Co | Logging system using electrostatically shielded coils |
US3075144A (en) * | 1959-07-10 | 1963-01-22 | Holly Sugar Corp | Tube wall thickness testing apparatus |
US3197693A (en) * | 1960-10-04 | 1965-07-27 | Hugo L Libby | Nondestructive eddy current subsurface testing device providing compensation for variation in probe-to-specimen spacing and surface irregularities |
GB1079913A (en) * | 1964-08-21 | 1967-08-16 | Pervy G Podshipnikovy Zd | Electromagnetic flaw detector |
US3521158A (en) * | 1968-01-11 | 1970-07-21 | Ird Mechanalysis | Inductive vibration pickup apparatus |
US3693075A (en) * | 1969-11-15 | 1972-09-19 | Forster F M O | Eddy current system for testing tubes for defects,eccentricity,and wall thickness |
US3611120A (en) * | 1970-02-24 | 1971-10-05 | Forster F M O | Eddy current testing systems with means to compensate for probe to workpiece spacing |
US3707671A (en) * | 1970-05-01 | 1972-12-26 | Robert S Morrow | Inductive vibration pickup apparatus |
US3753096A (en) * | 1971-02-04 | 1973-08-14 | Automation Ind Inc | Eddy current flaw detection system with left off compensation |
US3737764A (en) * | 1971-09-27 | 1973-06-05 | Commissariat Energie Atomique | Eddy-current test apparatus for detection of flaws in a metal seal placed within an electrically conductive tube |
US3840802A (en) * | 1972-08-10 | 1974-10-08 | Rockwell International Corp | Mutual inductance coupling probe for testing the integrity of through-hole plating in printed circuit boards |
CA984909A (en) * | 1973-10-15 | 1976-03-02 | Valentino S. Cecco | Eddy current probe for inspecting weakly magnetic materials |
US3996510A (en) * | 1975-03-12 | 1976-12-07 | General Electric Company | Shielding arrangement for sensing the proximity of a metallic object |
CH607497A5 (fr) * | 1975-07-09 | 1978-12-29 | Mefina Sa | |
US4176334A (en) * | 1975-08-25 | 1979-11-27 | Hughes Aircraft Company | High voltage transformer and process for making same |
JPS52119219U (fr) * | 1976-03-04 | 1977-09-09 | ||
US4079312A (en) * | 1976-08-17 | 1978-03-14 | Allegheny Ludlum Industries, Inc. | Continuous testing method and apparatus for determining the magnetic characteristics of a strip of moving material, including flux inducing and pick-up device therefor |
DE2725354C2 (de) * | 1977-06-04 | 1986-06-12 | SKF GmbH, 8720 Schweinfurt | Prüfkopf zur induktiven Oberflächenprüfung von metallischen Werkstücken |
US4204159A (en) * | 1978-04-18 | 1980-05-20 | Johnson Duane P | Eddy-current test probe with segmented circumferential test gap and method for inspection of materials |
US4233583A (en) * | 1978-09-22 | 1980-11-11 | Bicron Electronics Company | Flux shielded solenoid |
US4292589A (en) * | 1979-05-09 | 1981-09-29 | Schlumberger Technology Corporation | Eddy current method and apparatus for inspecting ferromagnetic tubular members |
CA1158314A (fr) * | 1980-08-18 | 1983-12-06 | Majesty (Her) In Right Of Canada As Represented By Atomic Energy Of Cana Da Limited | Sonde de surface a courants de foucault |
-
1982
- 1982-10-22 CA CA000414020A patent/CA1201481A/fr not_active Expired
-
1983
- 1983-06-16 US US06/504,977 patent/US4608534A/en not_active Expired - Fee Related
- 1983-09-13 FR FR8314552A patent/FR2535056B1/fr not_active Expired
- 1983-10-10 IT IT23237/83A patent/IT1194424B/it active
- 1983-10-10 DE DE19833336783 patent/DE3336783A1/de not_active Withdrawn
- 1983-10-12 GB GB08327262A patent/GB2129140B/en not_active Expired
- 1983-10-14 JP JP58191062A patent/JPS5992342A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1201481A (fr) | 1986-03-04 |
GB2129140B (en) | 1986-11-26 |
GB8327262D0 (en) | 1983-11-16 |
FR2535056A1 (fr) | 1984-04-27 |
IT1194424B (it) | 1988-09-22 |
US4608534A (en) | 1986-08-26 |
DE3336783A1 (de) | 1984-04-26 |
JPS5992342A (ja) | 1984-05-28 |
IT8323237A0 (it) | 1983-10-10 |
GB2129140A (en) | 1984-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |