FR2458806B1 - - Google Patents

Info

Publication number
FR2458806B1
FR2458806B1 FR7914466A FR7914466A FR2458806B1 FR 2458806 B1 FR2458806 B1 FR 2458806B1 FR 7914466 A FR7914466 A FR 7914466A FR 7914466 A FR7914466 A FR 7914466A FR 2458806 B1 FR2458806 B1 FR 2458806B1
Authority
FR
France
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
FR7914466A
Other languages
French (fr)
Other versions
FR2458806A1 (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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR7914466A priority Critical patent/FR2458806A1/fr
Publication of FR2458806A1 publication Critical patent/FR2458806A1/fr
Application granted granted Critical
Publication of FR2458806B1 publication Critical patent/FR2458806B1/fr
Granted 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/20—Investigating the presence of flaws
    • G01N27/205—Investigating the presence of flaws in insulating materials

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR7914466A 1979-06-06 1979-06-06 Perfectionnements aux procedes et dispositifs de detection d'inhomogeneites dans une feuille de materiau dielectrique Granted FR2458806A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7914466A FR2458806A1 (fr) 1979-06-06 1979-06-06 Perfectionnements aux procedes et dispositifs de detection d'inhomogeneites dans une feuille de materiau dielectrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7914466A FR2458806A1 (fr) 1979-06-06 1979-06-06 Perfectionnements aux procedes et dispositifs de detection d'inhomogeneites dans une feuille de materiau dielectrique

Publications (2)

Publication Number Publication Date
FR2458806A1 FR2458806A1 (fr) 1981-01-02
FR2458806B1 true FR2458806B1 (enrdf_load_html_response) 1984-11-16

Family

ID=9226276

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914466A Granted FR2458806A1 (fr) 1979-06-06 1979-06-06 Perfectionnements aux procedes et dispositifs de detection d'inhomogeneites dans une feuille de materiau dielectrique

Country Status (1)

Country Link
FR (1) FR2458806A1 (enrdf_load_html_response)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620145A (en) * 1984-08-20 1986-10-28 General Electric Company Non-destructive detection of voids in plastic materials
RU2046322C1 (ru) * 1993-12-22 1995-10-20 Лев Борисович Шелякин Устройство для выявления деформированных участков поверхности электропроводящих тел
US6707055B2 (en) * 2001-09-28 2004-03-16 Polaroid Corporation Method and apparatus for detecting pinhole defects in a dielectric layer
FI20065173A0 (fi) * 2006-03-17 2006-03-17 Keskuslaboratorio Laite ja menetelmä materiaalin ominaisuuksien tutkimiseksi

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701336A (en) * 1951-09-15 1955-02-01 Gen Electric Flaw detector
US2856582A (en) * 1955-05-24 1958-10-14 Gen Electric Method and apparatus for measuring thickness
US3611122A (en) * 1969-09-17 1971-10-05 Henry D Pahl Jr Testing of wire insulation by corona discharge

Also Published As

Publication number Publication date
FR2458806A1 (fr) 1981-01-02

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Legal Events

Date Code Title Description
ST Notification of lapse