FR2272401A1 - - Google Patents

Info

Publication number
FR2272401A1
FR2272401A1 FR7516125A FR7516125A FR2272401A1 FR 2272401 A1 FR2272401 A1 FR 2272401A1 FR 7516125 A FR7516125 A FR 7516125A FR 7516125 A FR7516125 A FR 7516125A FR 2272401 A1 FR2272401 A1 FR 2272401A1
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.)
Withdrawn
Application number
FR7516125A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2272401A1 publication Critical patent/FR2272401A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/12Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1207Testing individual magnetic storage devices, e.g. records carriers or digital storage elements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/02Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/10Plotting field distribution ; Measuring field distribution

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Pathology (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Thin Magnetic Films (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
FR7516125A 1974-05-24 1975-05-23 Withdrawn FR2272401A1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7406964A NL7406964A (nl) 1974-05-24 1974-05-24 Inrichting voor het inspecteren van magne- tische kristallen.

Publications (1)

Publication Number Publication Date
FR2272401A1 true FR2272401A1 (enExample) 1975-12-19

Family

ID=19821423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516125A Withdrawn FR2272401A1 (enExample) 1974-05-24 1975-05-23

Country Status (7)

Country Link
US (1) US3987363A (enExample)
JP (1) JPS576540B2 (enExample)
CA (1) CA1015032A (enExample)
DE (1) DE2521779A1 (enExample)
FR (1) FR2272401A1 (enExample)
GB (1) GB1510658A (enExample)
NL (1) NL7406964A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458130A1 (fr) * 1979-06-01 1980-12-26 Commissariat Energie Atomique Machine de test de memoires a bulles
US4625167A (en) * 1983-07-05 1986-11-25 Sigma Research, Inc. Flaw imaging in ferrous and nonferrous materials using magneto-optic visualization
JPS60117135U (ja) * 1984-01-18 1985-08-08 積水化成品工業株式会社 収縮スリ−ブ形成用シ−ト
US5565772A (en) * 1994-11-30 1996-10-15 Eastman Kodak Company High sensitivity magnetic viewer using anhysteretic transfer for viewing weak magnetic patterns
WO2011022516A2 (en) * 2009-08-18 2011-02-24 Cooper Technologies Company Sinusoidal alternating current ballast for fluorescent emergency lighting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7301931A (enExample) * 1973-02-12 1974-08-14

Also Published As

Publication number Publication date
JPS512482A (enExample) 1976-01-10
CA1015032A (en) 1977-08-02
GB1510658A (en) 1978-05-10
NL7406964A (nl) 1975-11-26
US3987363A (en) 1976-10-19
DE2521779A1 (de) 1975-12-04
JPS576540B2 (enExample) 1982-02-05

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Legal Events

Date Code Title Description
ST Notification of lapse