FR1308785A - Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids - Google Patents

Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids

Info

Publication number
FR1308785A
FR1308785A FR875914A FR875914A FR1308785A FR 1308785 A FR1308785 A FR 1308785A FR 875914 A FR875914 A FR 875914A FR 875914 A FR875914 A FR 875914A FR 1308785 A FR1308785 A FR 1308785A
Authority
FR
France
Prior art keywords
defects
detecting
methods
electrically conductive
solids
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
FR875914A
Other languages
French (fr)
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.)
GKN Group Services Ltd
Original Assignee
GKN Group Services Ltd
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 GKN Group Services Ltd filed Critical GKN Group Services Ltd
Priority to FR875914A priority Critical patent/FR1308785A/en
Application granted granted Critical
Publication of FR1308785A publication Critical patent/FR1308785A/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
    • 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
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors
FR875914A 1961-10-13 1961-10-13 Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids Expired FR1308785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR875914A FR1308785A (en) 1961-10-13 1961-10-13 Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR875914A FR1308785A (en) 1961-10-13 1961-10-13 Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids

Publications (1)

Publication Number Publication Date
FR1308785A true FR1308785A (en) 1962-11-09

Family

ID=8764653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875914A Expired FR1308785A (en) 1961-10-13 1961-10-13 Improvements in methods and apparatus for detecting the presence of defects in electrically conductive coherent solids

Country Status (1)

Country Link
FR (1) FR1308785A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493991A1 (en) * 1980-11-12 1982-05-14 Revigny Soc Metall Eddy-current detection of flaws in metallic product - operates by moving helically in alternating magnetic field of series windings
EP0052058A1 (en) * 1980-11-12 1982-05-19 INTERCONTROLE Société dite: Device for the detection of faults in a metallic product by means of eddy currents
FR2502337A1 (en) * 1981-03-23 1982-09-24 Commissariat Energie Atomique METHOD OF NON-DESTRUCTIVE CONTROL BY CURRENT FOUCAULT WITH BUOYOR CORRECTION AND DEVICE FOR IMPLEMENTING THE SAME

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493991A1 (en) * 1980-11-12 1982-05-14 Revigny Soc Metall Eddy-current detection of flaws in metallic product - operates by moving helically in alternating magnetic field of series windings
EP0052058A1 (en) * 1980-11-12 1982-05-19 INTERCONTROLE Société dite: Device for the detection of faults in a metallic product by means of eddy currents
FR2502337A1 (en) * 1981-03-23 1982-09-24 Commissariat Energie Atomique METHOD OF NON-DESTRUCTIVE CONTROL BY CURRENT FOUCAULT WITH BUOYOR CORRECTION AND DEVICE FOR IMPLEMENTING THE SAME
EP0061956A1 (en) * 1981-03-23 1982-10-06 Commissariat à l'Energie Atomique Method for eddy current non destructive testing with lift off correction and apparatus for using this method

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