CA974595A - Means for detecting discontinuities in metallic test objects of arbitrary shape - Google Patents

Means for detecting discontinuities in metallic test objects of arbitrary shape

Info

Publication number
CA974595A
CA974595A CA147,209A CA147209A CA974595A CA 974595 A CA974595 A CA 974595A CA 147209 A CA147209 A CA 147209A CA 974595 A CA974595 A CA 974595A
Authority
CA
Canada
Prior art keywords
arbitrary shape
test objects
metallic test
detecting discontinuities
discontinuities
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.)
Expired
Application number
CA147,209A
Other languages
English (en)
Other versions
CA147209S (en
Inventor
Carl G. Bergstrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
Allmanna Svenska Elektriska 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 Allmanna Svenska Elektriska AB filed Critical Allmanna Svenska Elektriska AB
Application granted granted Critical
Publication of CA974595A publication Critical patent/CA974595A/en
Expired legal-status Critical Current

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
    • 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

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)
CA147,209A 1971-07-15 1972-07-14 Means for detecting discontinuities in metallic test objects of arbitrary shape Expired CA974595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE09188/71A SE368871B (fr) 1971-07-15 1971-07-15

Publications (1)

Publication Number Publication Date
CA974595A true CA974595A (en) 1975-09-16

Family

ID=20276071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA147,209A Expired CA974595A (en) 1971-07-15 1972-07-14 Means for detecting discontinuities in metallic test objects of arbitrary shape

Country Status (7)

Country Link
US (1) US3967193A (fr)
CA (1) CA974595A (fr)
DE (1) DE2232081A1 (fr)
FR (1) FR2146005A5 (fr)
GB (1) GB1392745A (fr)
IT (1) IT964675B (fr)
SE (1) SE368871B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2431173A1 (de) * 1974-06-28 1976-01-15 Graenges Staal Oxeloesund Verfahren und vorrichtung zum produzieren von metallischen rohlingen, insbesondere stahlbrammen, die zumindest in einem vorbestimmten oberflaechenbereich im wesentlichen keine fehler aufweisen
DE2558966A1 (de) * 1975-12-29 1977-07-07 Graenges Oxeloesunds Jaernverk Verfahren und vorrichtung zum produzieren von metallischen rohlingen, insbesondere stahlbrammen, die zumindest in einem vorbestimmten oberflaechenbereich im wesentlichen keine fehler aufweisen
SE403517B (sv) * 1977-12-12 1978-08-21 Stangakonsult Forfarande och anordning att meta eller detektera en mekanisk tillstandsforendring
FR2507323A1 (fr) * 1981-06-03 1982-12-10 Commissariat Energie Atomique Capteur differentiel pour dispositif de controle par courants de foucault, comprenant deux enroulements sur un mandrin triangulaire
US5365170A (en) * 1993-01-19 1994-11-15 Orb Electrical Steels Limited Measurement of magnetic properties of electrical steels using a search coil partially defined by a fluid electrolyte
JP5750208B2 (ja) * 2010-12-08 2015-07-15 マークテック株式会社 渦電流探傷プローブ、渦電流探傷装置及び渦電流探傷方法
US9322806B2 (en) 2013-10-25 2016-04-26 General Electric Company Eddy current sensor with linear drive conductor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2255053A (en) * 1940-12-17 1941-09-09 Gunn Ross Apparatus and method for detecting defects in metallic objects
US3247453A (en) * 1961-03-09 1966-04-19 Api Instr Company Magnetic flaw detector with exciting and sensing coils axially aligned on opposite sides of the material
US3354385A (en) * 1964-04-29 1967-11-21 American Mach & Foundry Electromagnetic inspection system utilizing search coils nested within one another
SE347356B (fr) * 1970-03-20 1972-07-31 Essem Metotest Ab

Also Published As

Publication number Publication date
IT964675B (it) 1974-01-31
GB1392745A (en) 1975-04-30
DE2232081A1 (de) 1973-01-18
FR2146005A5 (fr) 1973-02-23
US3967193A (en) 1976-06-29
SE368871B (fr) 1974-07-22

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