ES469764A1 - Metodo y aparato de trabajo para el examen de piezas de tra-bajo ferromagneticos - Google Patents

Metodo y aparato de trabajo para el examen de piezas de tra-bajo ferromagneticos

Info

Publication number
ES469764A1
ES469764A1 ES469764A ES469764A ES469764A1 ES 469764 A1 ES469764 A1 ES 469764A1 ES 469764 A ES469764 A ES 469764A ES 469764 A ES469764 A ES 469764A ES 469764 A1 ES469764 A1 ES 469764A1
Authority
ES
Spain
Prior art keywords
voltage
measurement
ferromagnetic workpieces
work piece
workpiece
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
ES469764A
Other languages
English (en)
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.)
SKF Industrial Trading and Development Co BV
Original Assignee
SKF Industrial Trading and Development Co BV
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 Industrial Trading and Development Co BV filed Critical SKF Industrial Trading and Development Co BV
Publication of ES469764A1 publication Critical patent/ES469764A1/es
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
    • 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)

Abstract

Método y aparato de trabajo para el examen de piezas de trabajo ferromagnéticas respecto de imperfecciones de forma, composición y similares, en que la pieza de trabajo es magnetizada por una bobina portadora de corriente y desde la pieza de trabajo o desde una bobina secundaria acoplada a la pieza de trabajo se toma una tensión de medición o de comparación, caracterizados porque una segunda tensión es recogida por un captador colocado cerca de la superficie de la pieza de trabajo, cuya segunda tensión depende del campo magnético en ese punto, después de lo cual se combinan las dos tensiones para obtener una cantidad de medición o de regulación.
ES469764A 1977-05-13 1978-05-12 Metodo y aparato de trabajo para el examen de piezas de tra-bajo ferromagneticos Expired ES469764A1 (es)

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 (1)

Publication Number Publication Date
ES469764A1 true ES469764A1 (es) 1979-10-01

Family

ID=19828549

Family Applications (1)

Application Number Title Priority Date Filing Date
ES469764A Expired ES469764A1 (es) 1977-05-13 1978-05-12 Metodo y aparato de trabajo para el examen de piezas de tra-bajo ferromagneticos

Country Status (12)

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

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
FR2390728A1 (fr) 1978-12-08
DD135539A5 (de) 1979-05-09
ZA782413B (en) 1979-04-25
SE7805243L (sv) 1978-11-14
BR7802982A (pt) 1979-01-02
IT1112654B (it) 1986-01-20
DE2820559A1 (de) 1978-11-23
IT7819761A0 (it) 1978-01-30
JPS53141686A (en) 1978-12-09
FI781482A (fi) 1978-11-14
NL7705299A (nl) 1978-11-15
GB1604188A (en) 1981-12-02

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