SE8603113L - Undertryckning av godartade ytdefekter vid virvelstromsprovning - Google Patents

Undertryckning av godartade ytdefekter vid virvelstromsprovning

Info

Publication number
SE8603113L
SE8603113L SE8603113A SE8603113A SE8603113L SE 8603113 L SE8603113 L SE 8603113L SE 8603113 A SE8603113 A SE 8603113A SE 8603113 A SE8603113 A SE 8603113A SE 8603113 L SE8603113 L SE 8603113L
Authority
SE
Sweden
Prior art keywords
transducer
sensor
vertebrate
suppression
surface defects
Prior art date
Application number
SE8603113A
Other languages
Unknown language ( )
English (en)
Other versions
SE8603113D0 (sv
SE456863B (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
Priority to SE8603113A priority Critical patent/SE456863B/sv
Publication of SE8603113D0 publication Critical patent/SE8603113D0/sv
Priority to EP87109756A priority patent/EP0253274A3/en
Priority to JP62173122A priority patent/JPS6329244A/ja
Priority to US07/072,673 priority patent/US4851774A/en
Publication of SE8603113L publication Critical patent/SE8603113L/sv
Publication of SE456863B publication Critical patent/SE456863B/sv
Priority to US07/311,348 priority patent/US4965519A/en

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
    • G01N27/9053—Compensating for probe to workpiece spacing

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)
SE8603113A 1986-07-15 1986-07-15 Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer SE456863B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8603113A SE456863B (sv) 1986-07-15 1986-07-15 Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer
EP87109756A EP0253274A3 (en) 1986-07-15 1987-07-07 Device utilizing eddy current technique for measuring and/or supervision
JP62173122A JPS6329244A (ja) 1986-07-15 1987-07-13 渦電流表面欠陥検出装置
US07/072,673 US4851774A (en) 1986-07-15 1987-07-13 Suppression of the effect of harmless surface defects in eddy current testing by sensitivity characteristic compensation
US07/311,348 US4965519A (en) 1986-07-15 1989-02-15 Suppression of the effect of harmless surface defects in eddy current testing by sensitivity characteristic compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8603113A SE456863B (sv) 1986-07-15 1986-07-15 Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer

Publications (3)

Publication Number Publication Date
SE8603113D0 SE8603113D0 (sv) 1986-07-15
SE8603113L true SE8603113L (sv) 1988-01-16
SE456863B SE456863B (sv) 1988-11-07

Family

ID=20365109

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603113A SE456863B (sv) 1986-07-15 1986-07-15 Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer

Country Status (4)

Country Link
US (2) US4851774A (sv)
EP (1) EP0253274A3 (sv)
JP (1) JPS6329244A (sv)
SE (1) SE456863B (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456863B (sv) * 1986-07-15 1988-11-07 Toernbloms Kvalitetskontroll Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer
JP2961761B2 (ja) * 1989-09-14 1999-10-12 ミノルタ株式会社 光学装置
US5182513A (en) * 1991-04-06 1993-01-26 General Electric Company Method and apparatus for a multi-channel multi-frequency data acquisition system for nondestructive eddy current inspection testing
US5389876A (en) * 1991-05-06 1995-02-14 General Electric Company Flexible eddy current surface measurement array for detecting near surface flaws in a conductive part
US5237271A (en) * 1991-05-06 1993-08-17 General Electric Company Apparatus and method for non-destructive testing using multi-frequency eddy currents
US5371461A (en) * 1992-06-26 1994-12-06 General Electric Company Apparatus and method for compensating for variations in the lift-off of eddy current surface inspection array elements
US5430376A (en) * 1993-06-09 1995-07-04 General Electric Company Combined thermoelectric and eddy-current method and apparatus for nondestructive testing of metallic of semiconductor coated objects
DE4322987C2 (de) * 1993-07-09 1997-04-10 Erwin Halstrup Spule zur Erzeugung eines magnetischen Wechselfeldes
US5623427A (en) * 1994-09-02 1997-04-22 Defelsko Corporation Nondestructive anodic capacity gauge
WO2001046939A1 (en) 1999-12-20 2001-06-28 Connor Henry Moncrieff O Method for generating and displaying complex data utilizing color-coded signals
EP1952135A4 (en) * 2005-11-03 2011-12-14 Coastal Res Corp CONVIVIAL FOUCAULT CURRENT NETWORK
US7505859B2 (en) * 2007-04-05 2009-03-17 Olympus Ndt Method and algorithms for inspection of longitudinal defects in an eddy current inspection system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050678A (en) * 1958-11-04 1962-08-21 Shell Oil Co Magnetic testing system for metallic bodies
US3056081A (en) * 1959-06-22 1962-09-25 Budd Co Electromagnetic testing
FR1255436A (fr) * 1960-01-26 1961-03-10 Siderurgie Fse Inst Rech Perfectionnements aux appareils électro-magnétiques de détection des défauts des produits métalliques
SE444079B (sv) * 1977-11-22 1986-03-17 British Steel Corp Apparat for kontroll av ytan hos ett langstreckt metallforemal
US4355281A (en) * 1978-06-14 1982-10-19 Republic Steel Corporation Eddy current surface flaw detection employing signal correlation
SE7813344L (sv) * 1978-12-28 1980-06-29 Bengt Hjalmar Tornblom Met- och/eller kompensationsanordning
US4303885A (en) * 1979-06-18 1981-12-01 Electric Power Research Institute, Inc. Digitally controlled multifrequency eddy current test apparatus and method
JPS5817353A (ja) * 1981-06-12 1983-02-01 Kobe Steel Ltd 複数コイル方式による多重周波数渦流探傷法及び多重周波数渦流探傷装置
JPS59104545A (ja) * 1982-12-07 1984-06-16 Kobe Steel Ltd 連続鋳造鋼片の熱間探傷方法
SE456863B (sv) * 1986-07-15 1988-11-07 Toernbloms Kvalitetskontroll Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer

Also Published As

Publication number Publication date
SE8603113D0 (sv) 1986-07-15
US4851774A (en) 1989-07-25
SE456863B (sv) 1988-11-07
US4965519A (en) 1990-10-23
EP0253274A2 (en) 1988-01-20
EP0253274A3 (en) 1989-07-26
JPS6329244A (ja) 1988-02-06

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