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IT1015419B - METHOD AND DEVICE FOR DETECTION BY FOU CAULT CURRENTS OF A CHANGE IN THE MAGNETIC BEHAVIOR OF A MATERIAL - Google Patents

METHOD AND DEVICE FOR DETECTION BY FOU CAULT CURRENTS OF A CHANGE IN THE MAGNETIC BEHAVIOR OF A MATERIAL

Info

Publication number
IT1015419B
IT1015419B IT24449/74A IT2444974A IT1015419B IT 1015419 B IT1015419 B IT 1015419B IT 24449/74 A IT24449/74 A IT 24449/74A IT 2444974 A IT2444974 A IT 2444974A IT 1015419 B IT1015419 B IT 1015419B
Authority
IT
Italy
Prior art keywords
cault
fou
currents
detection
change
Prior art date
Application number
IT24449/74A
Other languages
Italian (it)
Inventor
G Labbe
C Maeder
Original Assignee
Siderurgie Fse Inst Rech
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 Siderurgie Fse Inst Rech filed Critical Siderurgie Fse Inst Rech
Application granted granted Critical
Publication of IT1015419B publication Critical patent/IT1015419B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1223—Measuring permeability, i.e. permeameters
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
IT24449/74A 1973-06-29 1974-06-25 METHOD AND DEVICE FOR DETECTION BY FOU CAULT CURRENTS OF A CHANGE IN THE MAGNETIC BEHAVIOR OF A MATERIAL IT1015419B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323821A FR2235372B1 (en) 1973-06-29 1973-06-29

Publications (1)

Publication Number Publication Date
IT1015419B true IT1015419B (en) 1977-05-10

Family

ID=9121754

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24449/74A IT1015419B (en) 1973-06-29 1974-06-25 METHOD AND DEVICE FOR DETECTION BY FOU CAULT CURRENTS OF A CHANGE IN THE MAGNETIC BEHAVIOR OF A MATERIAL

Country Status (6)

Country Link
JP (1) JPS5038571A (en)
BE (1) BE816941A (en)
DE (1) DE2431040A1 (en)
FR (1) FR2235372B1 (en)
GB (1) GB1468852A (en)
IT (1) IT1015419B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722108Y2 (en) * 1976-06-02 1982-05-13
DE3120522C2 (en) * 1981-05-22 1985-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Procedure for the determination of material properties
US4740747A (en) * 1983-06-15 1988-04-26 Nippon Steel Corporation Method of and apparatus for measuring transformation degree
GB2146435B (en) * 1983-09-07 1987-02-18 Atomic Energy Authority Uk Temperature control during annealing
IT1199159B (en) * 1984-07-13 1988-12-30 Centro Speriment Metallurg PROBE FOR THE CONTROL OF SURFACE DEFECTS OF HIGH TEMPERATURE METAL BODIES
IT1182103B (en) * 1985-12-20 1987-09-30 Centro Speriment Metallurg DEVICE FOR THE DETECTION OF PHASE TRANSFORMATIONS IN METALS AND ALLOYS
CN107167515B (en) * 2017-07-18 2020-08-18 中国石油化工股份有限公司 Rapid constant-current control method

Also Published As

Publication number Publication date
FR2235372A1 (en) 1975-01-24
DE2431040A1 (en) 1975-01-30
FR2235372B1 (en) 1978-12-29
GB1468852A (en) 1977-03-30
BE816941A (en) 1974-12-27
JPS5038571A (en) 1975-04-10

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