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SE7903678L - Anordning for magnetisk eller magnetinduktiv materialprovning - Google Patents

Anordning for magnetisk eller magnetinduktiv materialprovning

Info

Publication number
SE7903678L
SE7903678L SE7903678A SE7903678A SE7903678L SE 7903678 L SE7903678 L SE 7903678L SE 7903678 A SE7903678 A SE 7903678A SE 7903678 A SE7903678 A SE 7903678A SE 7903678 L SE7903678 L SE 7903678L
Authority
SE
Sweden
Prior art keywords
magnetic
material testing
compensation voltage
test signal
pulse counter
Prior art date
Application number
SE7903678A
Other languages
Unknown language ( )
English (en)
Other versions
SE436075B (sv
Inventor
A Kalosch
G Stritzke
Original Assignee
Foerster Inst Dr Friedrich
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Foerster Inst Dr Friedrich filed Critical Foerster Inst Dr Friedrich
Publication of SE7903678L publication Critical patent/SE7903678L/sv
Publication of SE436075B publication Critical patent/SE436075B/sv

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

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)
  • Measurement Of Current Or Voltage (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
SE7903678A 1978-06-14 1979-04-26 Anordning for magnetisk eller magnetinduktiv materialprovning med sonder, vilka ner de paverkas av materialet avger en av en viss materialegenskap beroende elektrisk signal SE436075B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2825958A DE2825958C2 (de) 1978-06-14 1978-06-14 Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung

Publications (2)

Publication Number Publication Date
SE7903678L true SE7903678L (sv) 1979-12-15
SE436075B SE436075B (sv) 1984-11-05

Family

ID=6041716

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7903678A SE436075B (sv) 1978-06-14 1979-04-26 Anordning for magnetisk eller magnetinduktiv materialprovning med sonder, vilka ner de paverkas av materialet avger en av en viss materialegenskap beroende elektrisk signal

Country Status (5)

Country Link
US (1) US4331920A (sv)
DE (1) DE2825958C2 (sv)
FR (1) FR2428841A1 (sv)
GB (1) GB2031153B (sv)
SE (1) SE436075B (sv)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383218A (en) * 1978-12-29 1983-05-10 The Boeing Company Eddy current flow detection including compensation for system variables such as lift-off
FR2451032A1 (fr) 1979-03-09 1980-10-03 Commissariat Energie Atomique Appareil numerique pour le controle de pieces par courants de foucault
EP0058076B1 (en) * 1981-02-09 1986-11-20 Goring Kerr Limited Metal detection apparatus
DE3125732A1 (de) * 1981-06-30 1983-01-13 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur werkstoffpruefung nach dem wirbelstromprinzip
US4507612A (en) * 1981-11-25 1985-03-26 Teknetics, Inc. Metal detector systems for identifying targets in mineralized ground
BE892243A (fr) * 1982-02-23 1982-06-16 Dev Et D Industrialisation Des Appareil de controle par courants de foucault a moyens d'equilibrage electroniques.
SE430545B (sv) * 1982-04-01 1983-11-21 Asea Ab Anordning for detektering av metallforemal i ett materialflode
US4709213A (en) * 1982-07-23 1987-11-24 Garrett Electronics, Inc. Metal detector having digital signal processing
US4518917A (en) * 1982-08-31 1985-05-21 Westinghouse Electric Corp. Plural sensor apparatus for monitoring turbine blading with undesired component elimination
GB2165650B (en) * 1984-04-09 1988-04-27 Dennis Amerena Parker Method and apparatus for the quantative and qualitative measurement of small metal particles
FR2570500B1 (fr) * 1984-09-20 1987-03-20 Siderurgie Fse Inst Rech Procede et dispositif de detection de defauts typiques sur un produit en defilement, notamment pour la detection de criques sur une brame
US4817448A (en) * 1986-09-03 1989-04-04 Micro Motion, Inc. Auto zero circuit for flow meter
JPS6439502A (en) * 1987-08-05 1989-02-09 Man Design Co Length measuring instrument
DE3808524C3 (de) * 1988-03-15 1995-03-23 Licentia Gmbh Regeleinrichtung für einen Prüfstand zum Prüfen von Kraftfahrzeugantriebsaggregaten
DE3817574A1 (de) * 1988-05-24 1989-11-30 Fraunhofer Ges Forschung Wirbelstromsensor
US5144231A (en) * 1988-09-30 1992-09-01 Jeffrey Tenenbaum Eddy current detector for detecting an object with offset compensation
US4906928A (en) * 1988-12-29 1990-03-06 Atlantic Richfield Company Transient electromagnetic apparatus with receiver having digitally controlled gain ranging amplifier for detecting irregularities on conductive containers
US5006800A (en) * 1989-11-06 1991-04-09 General Electric Company Eddy current imaging apparatus and method using phase difference detection
DE4025093A1 (de) * 1990-08-08 1992-02-13 Schilling Gerhard Verfahren und schaltung zur induktiven messung der leitfaehigkeit in fluessigkeiten
DE29517292U1 (de) * 1995-11-02 1995-12-14 Aerosafe-Trading, 24558 Henstedt-Ulzburg Wirbelstrom-Sondensystem
US20060038314A1 (en) * 2001-11-27 2006-02-23 Capaldo Kevin P Method for producing low birefringence plastic film

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1448815A (fr) * 1965-04-15 1966-08-12 Aquitaine Petrole Procédé et dispositif de correction de ligne de référence d'intégration
US3550018A (en) * 1968-09-11 1970-12-22 Bendix Corp Digital integrator-synchronizer having low noise susceptibility
DE2205792A1 (de) * 1972-02-08 1973-08-16 Bodenseewerk Perkin Elmer Co Schaltungsanordnung fuer den automatischen nullinienabgleich
US3842371A (en) * 1973-10-12 1974-10-15 Honeywell Inc Voltage to frequency converter
US4006407A (en) * 1975-03-10 1977-02-01 Magnaflux Corporation Non-destructive testing systems having automatic balance and sample and hold operational modes

Also Published As

Publication number Publication date
GB2031153B (en) 1983-03-30
FR2428841B1 (sv) 1984-10-12
DE2825958A1 (de) 1979-12-20
FR2428841A1 (fr) 1980-01-11
DE2825958C2 (de) 1986-02-20
US4331920A (en) 1982-05-25
SE436075B (sv) 1984-11-05
GB2031153A (en) 1980-04-16

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