SE456611B - Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signaler - Google Patents
Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signalerInfo
- Publication number
- SE456611B SE456611B SE8601785A SE8601785A SE456611B SE 456611 B SE456611 B SE 456611B SE 8601785 A SE8601785 A SE 8601785A SE 8601785 A SE8601785 A SE 8601785A SE 456611 B SE456611 B SE 456611B
- Authority
- SE
- Sweden
- Prior art keywords
- sensor
- signals
- signal
- function
- signal processing
- Prior art date
Links
- 238000012545 processing Methods 0.000 title claims description 18
- 230000007547 defect Effects 0.000 claims description 24
- 230000006870 function Effects 0.000 claims description 17
- 230000015654 memory Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 238000009749 continuous casting Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000161 steel melt Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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)
- Safety Devices In Control Systems (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8601785A SE456611B (sv) | 1986-04-18 | 1986-04-18 | Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signaler |
| EP87105250A EP0241860A3 (fr) | 1986-04-18 | 1987-04-09 | Dispositif de stockage et/ou de traitement des signaux reçus d'un transducteur |
| US07/038,764 US4819181A (en) | 1986-04-18 | 1987-04-15 | Performance increasing signal processing device |
| JP62094275A JPS62255861A (ja) | 1986-04-18 | 1987-04-16 | 信号記憶・処理装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8601785A SE456611B (sv) | 1986-04-18 | 1986-04-18 | Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signaler |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8601785D0 SE8601785D0 (sv) | 1986-04-18 |
| SE8601785L SE8601785L (sv) | 1987-10-19 |
| SE456611B true SE456611B (sv) | 1988-10-17 |
Family
ID=20364254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8601785A SE456611B (sv) | 1986-04-18 | 1986-04-18 | Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signaler |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4819181A (fr) |
| EP (1) | EP0241860A3 (fr) |
| JP (1) | JPS62255861A (fr) |
| SE (1) | SE456611B (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010494A (en) * | 1988-09-09 | 1991-04-23 | North Carolina State University | Method and apparatus for detecting mechanical roll imperfections in a roller drafting system |
| GB8916423D0 (en) * | 1989-07-18 | 1989-09-06 | Secr Defence | Method and apparatus for non-destructive testing |
| DE4003330A1 (de) * | 1990-02-05 | 1991-08-08 | Foerster Inst Dr Friedrich | Wirbelstrompruefgeraet |
| AU4995393A (en) * | 1992-07-31 | 1994-03-03 | Pressco Technology, Inc. | Inspection system using compressed image data |
| DE10150563C1 (de) * | 2001-10-15 | 2003-05-08 | Intermet Neunkirchen Gmbh | Verfahren zur Qualitätsprüfung von Gussteilen |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268805A (en) * | 1962-11-16 | 1966-08-23 | Air Reduction | Seam tracking and flaw detection |
| US3471685A (en) * | 1964-06-19 | 1969-10-07 | Industrial Nucleonics Corp | Methods and means for statistical variance analysis of sheet manufacturing processes using scanning and dwelling gauges |
| US3898469A (en) * | 1974-05-31 | 1975-08-05 | Intec Corp | Data router for a flaw detection system |
| JPS51113783A (en) * | 1975-03-31 | 1976-10-07 | Asahi Chem Ind Co Ltd | Defects detector of nonwoven fabric |
| FR2425069A1 (en) * | 1977-05-10 | 1979-11-30 | Setim | Product surface fault repair control - utilises microprocessor operating from data received by memory from detector |
| JPS5546182A (en) * | 1978-09-29 | 1980-03-31 | Shimadzu Corp | Flaw signal generation unit for adjustment for eddy current flaw detector |
| US4213183A (en) * | 1979-03-22 | 1980-07-15 | Adaptronics, Inc. | System for nondestructive evaluation of material flaw characteristics |
| US4414508A (en) * | 1981-03-30 | 1983-11-08 | Lockheed Corporation | Method and apparatus for automated inspection of fastener holes by eddy current |
| FR2512959A1 (fr) * | 1981-09-14 | 1983-03-18 | Commissariat Energie Atomique | Procede et dispositifs de controle d'une surface au moyen d'un capteur a courants de foucault |
| DE3213267A1 (de) * | 1982-04-08 | 1983-10-20 | Nukem Gmbh, 6450 Hanau | Verfahren und vorrichtung zur pruefung von werkstoffen nach dem wirbelstromprinzip |
| US4584529A (en) * | 1983-06-02 | 1986-04-22 | Bill Checker Co., Ltd. | Method and apparatus for discriminating between genuine and suspect paper money |
| FR2548077B1 (fr) * | 1983-06-30 | 1987-03-06 | Gerber Scient Inc | Appareil pour aider un operateur a resoudre les problemes poses par les defauts des etoffes |
| US4642786A (en) * | 1984-05-25 | 1987-02-10 | Position Orientation Systems, Ltd. | Method and apparatus for position and orientation measurement using a magnetic field and retransmission |
| SE456532B (sv) * | 1985-10-18 | 1988-10-10 | Asea Ab | Arrangemang for ytavsokning av ett provobjekt |
| US4755753A (en) * | 1986-07-23 | 1988-07-05 | General Electric Company | Eddy current surface mapping system for flaw detection |
-
1986
- 1986-04-18 SE SE8601785A patent/SE456611B/sv not_active IP Right Cessation
-
1987
- 1987-04-09 EP EP87105250A patent/EP0241860A3/fr not_active Withdrawn
- 1987-04-15 US US07/038,764 patent/US4819181A/en not_active Expired - Fee Related
- 1987-04-16 JP JP62094275A patent/JPS62255861A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62255861A (ja) | 1987-11-07 |
| SE8601785L (sv) | 1987-10-19 |
| SE8601785D0 (sv) | 1986-04-18 |
| EP0241860A2 (fr) | 1987-10-21 |
| US4819181A (en) | 1989-04-04 |
| EP0241860A3 (fr) | 1989-10-04 |
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