FR2114829A5 - - Google Patents
Info
- Publication number
- FR2114829A5 FR2114829A5 FR7141215A FR7141215A FR2114829A5 FR 2114829 A5 FR2114829 A5 FR 2114829A5 FR 7141215 A FR7141215 A FR 7141215A FR 7141215 A FR7141215 A FR 7141215A FR 2114829 A5 FR2114829 A5 FR 2114829A5
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
-
- 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)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9057170A | 1970-11-18 | 1970-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2114829A5 true FR2114829A5 (enExample) | 1972-06-30 |
Family
ID=22223370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7141215A Expired FR2114829A5 (enExample) | 1970-11-18 | 1971-11-17 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3688186A (enExample) |
| JP (1) | JPS5224878B1 (enExample) |
| AU (1) | AU456274B2 (enExample) |
| CA (1) | CA924778A (enExample) |
| FR (1) | FR2114829A5 (enExample) |
| GB (1) | GB1352758A (enExample) |
| IT (1) | IT945016B (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2722511A1 (de) * | 1977-05-18 | 1978-11-30 | Voll Walter | Metallsuchgeraet |
| DE2722498C3 (de) * | 1977-05-18 | 1982-02-04 | Walter Ing.(Grad.) 8728 Hassfurt Voll | Einrichtung an einem Kraftfahrzeug zur Anzeige eines Mindestabstandes |
| 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 |
| DE3128187A1 (de) * | 1981-07-16 | 1983-02-03 | Joachim 8068 Pfaffenhofen Sieg | Opto-elektronisches bauelement |
| GB2141234B (en) * | 1983-06-07 | 1986-11-12 | Mo Energeticheskij Institut | Eddy-current flaw detector |
| WO2007147612A1 (en) * | 2006-06-23 | 2007-12-27 | Ab Skf | Intrinsically safe vibration and condition monitoring system and the parts thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2267884A (en) * | 1939-10-25 | 1941-12-30 | Magnetic Analysis Corp | Variable feedback system |
| US2832040A (en) * | 1954-12-07 | 1958-04-22 | Republic Steel Corp | Direct reading seam depth indicator |
| US3344668A (en) * | 1964-07-30 | 1967-10-03 | Honeywell Inc | Control apparatus |
| US3469204A (en) * | 1967-09-14 | 1969-09-23 | Whittaker Corp | Proximity sensitive on-off oscillator switch circuit |
-
1970
- 1970-11-18 US US90571A patent/US3688186A/en not_active Expired - Lifetime
-
1971
- 1971-11-17 FR FR7141215A patent/FR2114829A5/fr not_active Expired
- 1971-11-18 IT IT54186/71A patent/IT945016B/it active
- 1971-11-18 CA CA128176A patent/CA924778A/en not_active Expired
- 1971-11-18 JP JP46091973A patent/JPS5224878B1/ja active Pending
- 1971-11-18 GB GB5363171A patent/GB1352758A/en not_active Expired
- 1971-11-18 AU AU35898/71A patent/AU456274B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU456274B2 (en) | 1974-11-25 |
| IT945016B (it) | 1973-05-10 |
| JPS5224878B1 (enExample) | 1977-07-04 |
| DE2157059A1 (de) | 1972-05-31 |
| US3688186A (en) | 1972-08-29 |
| GB1352758A (en) | 1974-05-08 |
| CA924778A (en) | 1973-04-17 |
| DE2157059B2 (de) | 1976-11-11 |
| AU3589871A (en) | 1973-05-24 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |