FR2488693B1 - - Google Patents
Info
- Publication number
- FR2488693B1 FR2488693B1 FR8115475A FR8115475A FR2488693B1 FR 2488693 B1 FR2488693 B1 FR 2488693B1 FR 8115475 A FR8115475 A FR 8115475A FR 8115475 A FR8115475 A FR 8115475A FR 2488693 B1 FR2488693 B1 FR 2488693B1
- Authority
- FR
- France
- 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
- G01N27/9046—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
-
- 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
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
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 |
---|---|---|---|
CA000359392A CA1158314A (en) | 1980-08-18 | 1980-08-18 | Eddy current surface probe |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2488693A1 FR2488693A1 (fr) | 1982-02-19 |
FR2488693B1 true FR2488693B1 (th) | 1984-01-06 |
Family
ID=4117782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8115475A Granted FR2488693A1 (fr) | 1980-08-18 | 1981-08-10 | Sonde de surface a courants de foucault |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5772055A (th) |
CA (1) | CA1158314A (th) |
DE (1) | DE3130685A1 (th) |
FR (1) | FR2488693A1 (th) |
GB (1) | GB2082330B (th) |
IT (1) | IT1144610B (th) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1201481A (en) * | 1982-10-22 | 1986-03-04 | Majesty (Her) In Right Of Canada As Represented By Atomic Energy Of Canada Limited/L'energie Atomique Du Canada Limitee | Eddy current probe with defect-noise discrimination |
SE457117B (sv) * | 1984-02-17 | 1988-11-28 | Bengt Hjalmar Toernblom | Saett och anordning foer provning av elektriskt ledande provobjekt |
FR2574938B1 (fr) * | 1984-12-19 | 1986-12-26 | Snecma | Methode de controle par courants de foucault sans contact et dispositif de mise en oeuvre |
GB8521266D0 (en) * | 1985-08-24 | 1985-10-02 | Thorburn Technics Int | Electromagnetic inspection probe |
EP0518635B1 (en) * | 1991-06-11 | 2003-05-21 | Newt Holdings Limited | Probe |
EP1032829A1 (en) * | 1997-11-21 | 2000-09-06 | Volvo Aero Corporation | A testing method for machined workpieces |
US7289913B2 (en) * | 2004-10-08 | 2007-10-30 | Jentek Sensors, Inc. | Local feature characterization using quasistatic electromagnetic sensors |
CN107907587B (zh) * | 2017-11-10 | 2021-05-11 | 南昌航空大学 | 一种欠阻尼状态脉冲涡流检测系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US3449664A (en) * | 1966-05-16 | 1969-06-10 | Bell Inc F W | Magnetic reaction testing apparatus and method of testing utilizing semiconductor means for magnetic field sensing of an eddy-current-reaction magnetic field |
US3753096A (en) * | 1971-02-04 | 1973-08-14 | Automation Ind Inc | Eddy current flaw detection system with left off compensation |
SU595671A2 (ru) * | 1976-01-28 | 1978-02-28 | Иркутский Филиал Всесоюзного Научно-Исследовательского И Проектного Института Алюминиевой Магниевой И Электродной Промышленности | Структуроскоп |
DE2746568A1 (de) * | 1977-10-17 | 1979-04-26 | Kraftwerk Union Ag | Wirbelstrompruefsonde zur pruefung ferromagnetischer werkstoffe |
-
1980
- 1980-08-18 CA CA000359392A patent/CA1158314A/en not_active Expired
-
1981
- 1981-07-31 IT IT68073/81A patent/IT1144610B/it active
- 1981-08-03 DE DE19813130685 patent/DE3130685A1/de not_active Withdrawn
- 1981-08-04 GB GB8123782A patent/GB2082330B/en not_active Expired
- 1981-08-10 FR FR8115475A patent/FR2488693A1/fr active Granted
- 1981-08-17 JP JP56128655A patent/JPS5772055A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
IT8168073A0 (it) | 1981-07-31 |
GB2082330A (en) | 1982-03-03 |
GB2082330B (en) | 1984-05-31 |
JPS5772055A (en) | 1982-05-06 |
FR2488693A1 (fr) | 1982-02-19 |
CA1158314A (en) | 1983-12-06 |
DE3130685A1 (de) | 1982-04-15 |
IT1144610B (it) | 1986-10-29 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |