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IT1135435B - SURFACE SURFACE DEFECTS CONTROL EQUIPMENT - Google Patents

SURFACE SURFACE DEFECTS CONTROL EQUIPMENT

Info

Publication number
IT1135435B
IT1135435B IT19687/81A IT1968781A IT1135435B IT 1135435 B IT1135435 B IT 1135435B IT 19687/81 A IT19687/81 A IT 19687/81A IT 1968781 A IT1968781 A IT 1968781A IT 1135435 B IT1135435 B IT 1135435B
Authority
IT
Italy
Prior art keywords
control equipment
defects control
surface defects
defects
equipment
Prior art date
Application number
IT19687/81A
Other languages
Italian (it)
Other versions
IT8119687A0 (en
Inventor
Jurgen Henrich Hens
Original Assignee
Skf Kugellagerfabriken Gmbh
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 Skf Kugellagerfabriken Gmbh filed Critical Skf Kugellagerfabriken Gmbh
Publication of IT8119687A0 publication Critical patent/IT8119687A0/en
Application granted granted Critical
Publication of IT1135435B publication Critical patent/IT1135435B/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
    • 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)
IT19687/81A 1980-02-16 1981-02-12 SURFACE SURFACE DEFECTS CONTROL EQUIPMENT IT1135435B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3005915A DE3005915C2 (en) 1980-02-16 1980-02-16 Eddy current tester for surface defects

Publications (2)

Publication Number Publication Date
IT8119687A0 IT8119687A0 (en) 1981-02-12
IT1135435B true IT1135435B (en) 1986-08-20

Family

ID=6094846

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19687/81A IT1135435B (en) 1980-02-16 1981-02-12 SURFACE SURFACE DEFECTS CONTROL EQUIPMENT

Country Status (4)

Country Link
DE (1) DE3005915C2 (en)
FR (1) FR2476318A1 (en)
GB (1) GB2069708A (en)
IT (1) IT1135435B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141234B (en) * 1983-06-07 1986-11-12 Mo Energeticheskij Institut Eddy-current flaw detector
DE3824948A1 (en) * 1988-07-22 1990-01-25 Fiz Energet I An Latvssr Eddy-current device for non-destructive testing
DE4003330A1 (en) * 1990-02-05 1991-08-08 Foerster Inst Dr Friedrich Eddy current tester
JP2008089328A (en) * 2006-09-29 2008-04-17 Hitachi Ltd Eddy current flaw detector and eddy current flaw detection method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB596182A (en) * 1945-07-24 1947-12-30 British Thomson Houston Co Ltd Improvements relating to apparatus for detecting flaws in metal wire
GB870487A (en) * 1958-01-24 1961-06-14 Republic Steel Corp Flaw detecting device
DE2049486A1 (en) * 1969-10-10 1971-04-22 Automation Ind Inc Material testing device
AU3837372A (en) * 1971-02-01 1973-08-02 Automation Industries, Inc Eddy current nondestructive testing system
GB1475517A (en) * 1974-06-27 1977-06-01 British Steel Corp Detection of surface defects in elongate metallic members
US4095180A (en) * 1975-12-29 1978-06-13 K. J. Law Engineers, Inc. Method and apparatus for testing conductivity using eddy currents
SE444079B (en) * 1977-11-22 1986-03-17 British Steel Corp DEVICE FOR CHECKING THE SURFACE OF A LONG-TERM METAL FORM

Also Published As

Publication number Publication date
FR2476318A1 (en) 1981-08-21
DE3005915C2 (en) 1985-01-10
GB2069708A (en) 1981-08-26
FR2476318B1 (en) 1984-07-13
DE3005915A1 (en) 1981-08-27
IT8119687A0 (en) 1981-02-12

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