BE714379A - - Google Patents
Info
- Publication number
- BE714379A BE714379A BE714379DA BE714379A BE 714379 A BE714379 A BE 714379A BE 714379D A BE714379D A BE 714379DA BE 714379 A BE714379 A BE 714379A
- Authority
- BE
- Belgium
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
-
- 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
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 |
|---|---|---|---|
| FR107736A FR92982E (fr) | 1966-01-11 | 1967-05-25 | Procédé de controle non destructif par courants de foucault de tubes conducteurs de l'électricité, et appareil correspondant. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE714379A true BE714379A (de) | 1968-09-16 |
Family
ID=8631541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE714379D BE714379A (de) | 1967-05-25 | 1968-04-29 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3543145A (de) |
| BE (1) | BE714379A (de) |
| CH (1) | CH491384A (de) |
| DE (1) | DE1773493C3 (de) |
| ES (1) | ES354275A1 (de) |
| GB (1) | GB1154300A (de) |
| LU (1) | LU56053A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3109445C2 (de) * | 1981-03-12 | 1985-05-09 | Rheinmetall GmbH, 4000 Düsseldorf | Vorrichtung zum Feststellen und Anzeigen der Lage und Tiefe einer Unebenheit einer Rohrinnenoberfläche |
| US4567437A (en) * | 1983-06-10 | 1986-01-28 | Hubbard Lincoln W | Dual oscillator method for detecting flaws in a moving chain |
| US5497147A (en) * | 1993-06-21 | 1996-03-05 | Microstrain, Company | Differential variable reluctance transducer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135914A (en) * | 1959-09-04 | 1964-06-02 | Magnetic Analysis Corp | Multi-frequency testing method and apparatus for selectively detecting flaws at different depths |
| FR1255436A (fr) * | 1960-01-26 | 1961-03-10 | Siderurgie Fse Inst Rech | Perfectionnements aux appareils électro-magnétiques de détection des défauts des produits métalliques |
| US3146395A (en) * | 1962-02-23 | 1964-08-25 | Assembly Products Inc | Magnetic flaw detection apparatus with excitation and sensing coils mounted on nutating head |
| US3449661A (en) * | 1963-12-11 | 1969-06-10 | Magnaflux Corp | Eddy current testing system having lift-off compensation,and utilizing a tuned plate-tuned grid oscillator |
| US3273055A (en) * | 1965-10-18 | 1966-09-13 | Api Instr Company | Constant impedance dual circuits for sample material flaw detection |
-
1968
- 1968-04-29 BE BE714379D patent/BE714379A/xx unknown
- 1968-04-29 US US725100A patent/US3543145A/en not_active Expired - Lifetime
- 1968-05-01 CH CH648968A patent/CH491384A/fr not_active IP Right Cessation
- 1968-05-10 LU LU56053D patent/LU56053A1/xx unknown
- 1968-05-21 GB GB24209/68A patent/GB1154300A/en not_active Expired
- 1968-05-24 DE DE1773493A patent/DE1773493C3/de not_active Expired
- 1968-05-24 ES ES354275A patent/ES354275A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1773493C3 (de) | 1975-07-31 |
| LU56053A1 (de) | 1968-09-04 |
| GB1154300A (en) | 1969-06-04 |
| CH491384A (fr) | 1970-05-31 |
| US3543145A (en) | 1970-11-24 |
| ES354275A1 (es) | 1970-04-16 |
| DE1773493B2 (de) | 1974-11-28 |
| DE1773493A1 (de) | 1971-08-26 |