DE2028113A1 - Steuerschaltung zur Materialprüfung durch Wirbelströme - Google Patents
Steuerschaltung zur Materialprüfung durch WirbelströmeInfo
- Publication number
- DE2028113A1 DE2028113A1 DE19702028113 DE2028113A DE2028113A1 DE 2028113 A1 DE2028113 A1 DE 2028113A1 DE 19702028113 DE19702028113 DE 19702028113 DE 2028113 A DE2028113 A DE 2028113A DE 2028113 A1 DE2028113 A1 DE 2028113A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- piece
- gate
- devices
- coils
- 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.)
- Pending
Links
- 238000004154 testing of material Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims description 28
- 230000007547 defect Effects 0.000 claims description 9
- 239000003550 marker Substances 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 2
- 238000009659 non-destructive testing Methods 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001960 triggered effect Effects 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
-
- 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
-
- 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
- G01N27/9093—Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting
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 |
|---|---|---|---|
| US83141069A | 1969-06-09 | 1969-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2028113A1 true DE2028113A1 (de) | 1970-12-23 |
Family
ID=25258988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702028113 Pending DE2028113A1 (de) | 1969-06-09 | 1970-06-08 | Steuerschaltung zur Materialprüfung durch Wirbelströme |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3603874A (enExample) |
| DE (1) | DE2028113A1 (enExample) |
| FR (1) | FR2045941A1 (enExample) |
| GB (1) | GB1318551A (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727075A (en) * | 1972-02-24 | 1973-04-10 | Ibm | Missing type detector |
| JPS4992890U (enExample) * | 1972-12-04 | 1974-08-12 | ||
| US3826132A (en) * | 1973-06-01 | 1974-07-30 | Bethlehem Steel Corp | Device for producing a visual display of the transverse tension profile of a moving steel strip |
| JPS5044884A (enExample) * | 1973-08-22 | 1975-04-22 | ||
| US3916301A (en) * | 1974-05-20 | 1975-10-28 | Republic Steel Corp | Magnetic flaw detection apparatus |
| FR2681430B1 (fr) * | 1991-09-12 | 1993-11-05 | Valtubes | Dispositif de controle non destructif de produits longs metalliques de revolution et procede pour sa mise en óoeuvre. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2102451A (en) * | 1936-04-23 | 1937-12-14 | Magnetic Analysis Corp | Magnetic analysis |
| US2415789A (en) * | 1942-06-13 | 1947-02-11 | Republic Steel Corp | Nondestructive electrical testing of metals |
| US2980848A (en) * | 1956-12-24 | 1961-04-18 | Shell Oil Co | Weld seam testing apparatus |
| US2942178A (en) * | 1957-07-12 | 1960-06-21 | Magnaflux Corp | Testing circuit |
| US2971150A (en) * | 1958-01-31 | 1961-02-07 | Robinson Technical Products In | Apparatus for non-destructive testing of metals |
| US3249861A (en) * | 1962-09-18 | 1966-05-03 | Budd Co | Method and apparatus for magnetic flaw detection by depositing magnetic particles ononly the area of the flaw |
| US3475681A (en) * | 1965-08-02 | 1969-10-28 | Magnaflux Corp | Apparatus display system for providing plural indications and threshold indications |
-
1969
- 1969-06-09 US US831410A patent/US3603874A/en not_active Expired - Lifetime
-
1970
- 1970-06-08 GB GB2767470A patent/GB1318551A/en not_active Expired
- 1970-06-08 DE DE19702028113 patent/DE2028113A1/de active Pending
- 1970-06-09 FR FR7021186A patent/FR2045941A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2045941A1 (enExample) | 1971-03-05 |
| GB1318551A (en) | 1973-05-31 |
| US3603874A (en) | 1971-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2643383C3 (de) | Schaltanordnung für ein Ultraschall- Impulsechoverfahren zur Messung der Dicke bzw. Schallgeschwindigkeit in Prüfstücken | |
| DE1076984B (de) | Verfahren und Anordnung zur automatischen Erkennung von Zeichen | |
| EP0149424A2 (de) | Verfahren, Vorrichtung und Farbmessstreifen für die Druckqualitätsbeurteilung | |
| DE2841220A1 (de) | Verfahren zum pruefen der funktion eines regelsystems | |
| DE2544102A1 (de) | Verfahren und vorrichtung zur fehlerauffindung an werkstuecken mittels optischer abtastung | |
| DE3611370C2 (enExample) | ||
| DE2028113A1 (de) | Steuerschaltung zur Materialprüfung durch Wirbelströme | |
| DE3125732C2 (enExample) | ||
| DE3519797C1 (de) | Ultraschallpruefvorrichtung zur zerstoerungsfreien Werkstoffpruefung | |
| DE2620046B2 (de) | Abgleichverfahren und -vorrichtung zur Fehlerfeststellung bei einem Hohlkörper aus transparentem Material | |
| DE3150212C1 (de) | Schaltungsanordnung für einen Näherungsschalter | |
| DE3149460C2 (de) | Logikanalysator | |
| DE1935081A1 (de) | Verfahren und Anordnung zum Pruefen einer elektrischen Detektoranlage sowie eine solche Anordnung verwendendes elektrisches Detektorsystem,insbesondere zur Ermittlung von Metallen | |
| DE3221842A1 (de) | Ultraschall-nachlaufregelung fuer mechanische elemente und mit dieser nachlaufregelung ausgeruestetes radiologisches geraet | |
| DE1499399C3 (de) | Gerät zur automatischen Ermittlung der Registrierdauer eines Ereignisses aus Balkendiagrammen | |
| DE1772155B1 (de) | Schaltungsanordnung zum vergleichen von tonaufzeichnungen | |
| DE3009574A1 (de) | Verfahren und vorrichtung zur bestimmung der schallgeschwindigkeit in einem material vorgegebener dicke | |
| EP0136520B1 (de) | Einrichtung zum Aufnehmen densitometrischer Werte von einem Kontrollstreifen | |
| EP0828136B1 (de) | Verfahren und Vorrichtung zur Erkennung der Winkellage eines im wesentlichen zylindrischen Körpers | |
| DE2642433A1 (de) | Vorrichtung zur behandlung von photographischen streifen u.dgl. | |
| DE2939736C2 (de) | Elektromagnetisch gesteuerte Flachstrickmaschine | |
| DE3120274A1 (de) | Entfernungsmessgeraet | |
| DE2648694C3 (de) | Verfahren und Einrichtung zum Prüfen von Halbzeug | |
| AT249405B (de) | Einrichtung zur automatischen Aussortierung von fehlerbehafteten Prüflingen unterschiedlicher Länge bzw. Dicke unter Anwendung einer Impulsecho-Prüfvorrichtung | |
| DE3221021A1 (de) | Verfahren zur einstellung einer anlage zur zerstoerungsfreien werkstoffpruefung mittels ultraschall |