IT1112654B - Procedimento e dispositivo per l'esame di pezzi ferromagnetici - Google Patents

Procedimento e dispositivo per l'esame di pezzi ferromagnetici

Info

Publication number
IT1112654B
IT1112654B IT19761/78A IT1976178A IT1112654B IT 1112654 B IT1112654 B IT 1112654B IT 19761/78 A IT19761/78 A IT 19761/78A IT 1976178 A IT1976178 A IT 1976178A IT 1112654 B IT1112654 B IT 1112654B
Authority
IT
Italy
Prior art keywords
examination
procedure
ferromagnetic pieces
ferromagnetic
pieces
Prior art date
Application number
IT19761/78A
Other languages
English (en)
Other versions
IT7819761A0 (it
Inventor
Larsson Erik Hakan
Original Assignee
Skf Ind Trading & Dev
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 Ind Trading & Dev filed Critical Skf Ind Trading & Dev
Publication of IT7819761A0 publication Critical patent/IT7819761A0/it
Application granted granted Critical
Publication of IT1112654B publication Critical patent/IT1112654B/it

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
    • 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
    • G01N27/904—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 with two or more 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)
  • Measuring Magnetic Variables (AREA)
IT19761/78A 1977-05-13 1978-01-30 Procedimento e dispositivo per l'esame di pezzi ferromagnetici IT1112654B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7705299A NL7705299A (nl) 1977-05-13 1977-05-13 Werkwijze en inrichting voor het onderzoek van ferromagnetische werkstukken.

Publications (2)

Publication Number Publication Date
IT7819761A0 IT7819761A0 (it) 1978-01-30
IT1112654B true IT1112654B (it) 1986-01-20

Family

ID=19828549

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19761/78A IT1112654B (it) 1977-05-13 1978-01-30 Procedimento e dispositivo per l'esame di pezzi ferromagnetici

Country Status (12)

Country Link
JP (1) JPS53141686A (it)
BR (1) BR7802982A (it)
DD (1) DD135539A5 (it)
DE (1) DE2820559A1 (it)
ES (1) ES469764A1 (it)
FI (1) FI781482A (it)
FR (1) FR2390728A1 (it)
GB (1) GB1604188A (it)
IT (1) IT1112654B (it)
NL (1) NL7705299A (it)
SE (1) SE7805243L (it)
ZA (1) ZA782413B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503393A (en) * 1981-10-05 1985-03-05 Exxon Production Research Co. Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor
US4510447A (en) * 1981-10-26 1985-04-09 Exxon Production Research Co. Inspection apparatus for electromagnetically detecting flaws in the wall of a pipe

Also Published As

Publication number Publication date
IT7819761A0 (it) 1978-01-30
SE7805243L (sv) 1978-11-14
FI781482A (fi) 1978-11-14
DD135539A5 (de) 1979-05-09
GB1604188A (en) 1981-12-02
ES469764A1 (es) 1979-10-01
NL7705299A (nl) 1978-11-15
JPS53141686A (en) 1978-12-09
BR7802982A (pt) 1979-01-02
ZA782413B (en) 1979-04-25
DE2820559A1 (de) 1978-11-23
FR2390728A1 (fr) 1978-12-08

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