SE456864B - Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden - Google Patents

Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden

Info

Publication number
SE456864B
SE456864B SE8603604A SE8603604A SE456864B SE 456864 B SE456864 B SE 456864B SE 8603604 A SE8603604 A SE 8603604A SE 8603604 A SE8603604 A SE 8603604A SE 456864 B SE456864 B SE 456864B
Authority
SE
Sweden
Prior art keywords
vector
sensor
signal
magnetic
indirectly
Prior art date
Application number
SE8603604A
Other languages
English (en)
Swedish (sv)
Other versions
SE8603604D0 (sv
SE8603604L (sv
Inventor
B H Toernblom
Original Assignee
Toernbloms Kvalitetskontroll
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 Toernbloms Kvalitetskontroll filed Critical Toernbloms Kvalitetskontroll
Priority to SE8603604A priority Critical patent/SE456864B/sv
Publication of SE8603604D0 publication Critical patent/SE8603604D0/xx
Priority to SE8700359A priority patent/SE458312B/sv
Priority to US07/085,173 priority patent/US4853634A/en
Priority to EP87112238A priority patent/EP0257603A3/de
Priority to JP62209436A priority patent/JPS6361946A/ja
Publication of SE8603604L publication Critical patent/SE8603604L/
Publication of SE456864B publication Critical patent/SE456864B/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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
SE8603604A 1986-08-27 1986-08-27 Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden SE456864B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8603604A SE456864B (sv) 1986-08-27 1986-08-27 Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden
SE8700359A SE458312B (sv) 1986-08-27 1987-01-30 Anordning foer kontroll av provobjekt
US07/085,173 US4853634A (en) 1986-08-27 1987-08-14 Device for crack detection on hot cast billets and suppressing the effects of magnetic regions
EP87112238A EP0257603A3 (de) 1986-08-27 1987-08-24 Vorrichtung zur Wirbelstromprüfung von nichtmagnetischen Prüflingen
JP62209436A JPS6361946A (ja) 1986-08-27 1987-08-25 非磁性供試体の渦電流試験装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8603604A SE456864B (sv) 1986-08-27 1986-08-27 Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden

Publications (3)

Publication Number Publication Date
SE8603604D0 SE8603604D0 (sv) 1986-08-27
SE8603604L SE8603604L (sv) 1988-02-28
SE456864B true SE456864B (sv) 1988-11-07

Family

ID=20365407

Family Applications (2)

Application Number Title Priority Date Filing Date
SE8603604A SE456864B (sv) 1986-08-27 1986-08-27 Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden
SE8700359A SE458312B (sv) 1986-08-27 1987-01-30 Anordning foer kontroll av provobjekt

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8700359A SE458312B (sv) 1986-08-27 1987-01-30 Anordning foer kontroll av provobjekt

Country Status (4)

Country Link
US (1) US4853634A (de)
EP (1) EP0257603A3 (de)
JP (1) JPS6361946A (de)
SE (2) SE456864B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442285A (en) * 1994-02-28 1995-08-15 Westinghouse Electric Corporation NDE eddy current sensor for very high scan rate applications in an operating combustion turbine
DE29517292U1 (de) * 1995-11-02 1995-12-14 Aerosafe-Trading, 24558 Henstedt-Ulzburg Wirbelstrom-Sondensystem
DE10045715A1 (de) 2000-09-15 2002-03-28 Busch Dieter & Co Prueftech Verfahren und Vorrichtung zur Prüfung eines Werkstücks mittels Wirbelströmen
KR100405687B1 (ko) * 2000-12-26 2003-11-14 현대자동차주식회사 주조품의 내부 결함 검사장치 및 방법
EP1241473A1 (de) * 2001-03-16 2002-09-18 Siemens Aktiengesellschaft Verfahren zur zerstörungsfreien Prüfung carbidhaltiger Legierungen sowie zur Herstellung einer Gasturbinenschaufel
JP2004523767A (ja) * 2001-03-16 2004-08-05 シーメンス　アクチエンゲゼルシヤフト 炭化物含有合金又は表面近傍が硫化された合金の非破壊検査方法およびガスタービン翼の製造方法
EP1394360A1 (de) * 2002-08-23 2004-03-03 Siemens Aktiengesellschaft Verfahren zur zerstörungsfreien Prüfung eines Bauteils sowie zur Herstellung einer Gasturbinenschaufel
US6950546B2 (en) 2002-12-03 2005-09-27 Og Technologies, Inc. Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
US7324681B2 (en) 2002-12-03 2008-01-29 Og Technologies, Inc. Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
US7460703B2 (en) * 2002-12-03 2008-12-02 Og Technologies, Inc. Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
US7068041B2 (en) * 2003-11-26 2006-06-27 General Electric Company Method and system for multi-frequency inductive ratio measurement
US6873149B1 (en) 2003-11-26 2005-03-29 General Electric Company Method and system for eddy current proximity system noise reduction
US7113873B2 (en) * 2003-11-26 2006-09-26 General Electric Company Method and system for using eddy current transducers in pressure measurements
EP1952135A4 (de) * 2005-11-03 2011-12-14 Coastal Res Corp Array mit gleichförmigen wirbelströmen
DE102013217101A1 (de) 2012-12-27 2014-07-17 Sms Siemag Ag Stranggießvorrichtung und Verfahren zur Produktion und/oder Inspektion von metallurgischen Gießprodukten
US10672046B2 (en) * 2012-12-31 2020-06-02 Baker Hughes, A Ge Company, Llc Systems and methods for non-destructive testing online stores
US12099033B2 (en) * 2020-06-15 2024-09-24 Jfe Steel Corporation Mechanical property measuring apparatus, mechanical property measuring method, substance manufacturing equipment, substance management method, and substance manufacturing method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848182A (en) * 1973-08-15 1974-11-12 Magnetic Analysis Corp Apparatus for limiting phase-angle response range, particularly in eddy current testing apparatus
GB1498218A (en) * 1974-06-17 1978-01-18 Kennecott Copper Corp Method and apparatus for detecting the presence of magnetic anomalies in ferromagnetic and non-ferromagnetic materials
FR2324003A1 (fr) * 1975-09-09 1977-04-08 Commissariat Energie Atomique Procede de controle non destructif par courants de foucault et dispositif correspondant, utilisant une excitation multifrequence et permettant l'elimination de certains parametres
US4084136A (en) * 1976-10-21 1978-04-11 Battelle Memorial Institute Eddy current nondestructive testing device for measuring variable characteristics of a sample utilizing Walsh functions
FR2500632B2 (fr) * 1980-11-12 1987-12-24 Revigny Soc Metall Dispositif de detection par courants de foucault de defauts dans un produit metallique
DE3125732A1 (de) * 1981-06-30 1983-01-13 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur werkstoffpruefung nach dem wirbelstromprinzip
DE3213267A1 (de) * 1982-04-08 1983-10-20 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur pruefung von werkstoffen nach dem wirbelstromprinzip

Also Published As

Publication number Publication date
SE8700359L (sv) 1988-02-28
EP0257603A2 (de) 1988-03-02
SE8700359D0 (sv) 1987-01-30
SE8603604D0 (sv) 1986-08-27
SE458312B (sv) 1989-03-13
JPS6361946A (ja) 1988-03-18
SE8603604L (sv) 1988-02-28
EP0257603A3 (de) 1989-05-31
US4853634A (en) 1989-08-01

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