SE8700359L - Sett och/eller anordning for undertryckning och/eller separering av signaler - Google Patents

Sett och/eller anordning for undertryckning och/eller separering av signaler

Info

Publication number
SE8700359L
SE8700359L SE8700359A SE8700359A SE8700359L SE 8700359 L SE8700359 L SE 8700359L SE 8700359 A SE8700359 A SE 8700359A SE 8700359 A SE8700359 A SE 8700359A SE 8700359 L SE8700359 L SE 8700359L
Authority
SE
Sweden
Prior art keywords
magnetic
signals originating
vector
transducer
detector
Prior art date
Application number
SE8700359A
Other languages
Unknown language ( )
English (en)
Other versions
SE458312B (sv
SE8700359D0 (sv
Inventor
B H Tornblom
Original Assignee
Tornbloms Kvalitetskontroll Ab
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 Tornbloms Kvalitetskontroll Ab filed Critical Tornbloms Kvalitetskontroll Ab
Publication of SE8700359D0 publication Critical patent/SE8700359D0/sv
Priority to US07/146,175 priority Critical patent/US4837510A/en
Priority to EP88101161A priority patent/EP0276827A3/en
Priority to JP63016037A priority patent/JPS63193059A/ja
Publication of SE8700359L publication Critical patent/SE8700359L/sv
Publication of SE458312B publication Critical patent/SE458312B/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
SE8700359A 1986-08-27 1987-01-30 Anordning foer kontroll av provobjekt SE458312B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US07/146,175 US4837510A (en) 1987-01-30 1988-01-20 Device for suppression and/or separation of signals due to magnetic oxide scales in hot cast billets
EP88101161A EP0276827A3 (en) 1987-01-30 1988-01-27 Device for control and/or measurement of a test object
JP63016037A JPS63193059A (ja) 1987-01-30 1988-01-28 供試体の量制御及び／もしくは測定装置

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
SE8700359D0 SE8700359D0 (sv) 1987-01-30
SE8700359L true SE8700359L (sv) 1988-02-28
SE458312B SE458312B (sv) 1989-03-13

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 Before (1)

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

Country Status (4)

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

Families Citing this family (16)

* 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 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
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
EP1241473A1 (de) * 2001-03-16 2002-09-18 Siemens Aktiengesellschaft Verfahren zur zerstörungsfreien Prüfung carbidhaltiger Legierungen sowie zur Herstellung einer Gasturbinenschaufel
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 (en) * 2005-11-03 2011-12-14 Coastal Res Corp CONVIVIAL FOUCAULT CURRENT NETWORK
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

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
SE458312B (sv) 1989-03-13
SE8603604L (sv) 1988-02-28
SE8603604D0 (sv) 1986-08-27
EP0257603A3 (en) 1989-05-31
US4853634A (en) 1989-08-01
SE8700359D0 (sv) 1987-01-30
EP0257603A2 (en) 1988-03-02
SE456864B (sv) 1988-11-07
JPS6361946A (ja) 1988-03-18

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