FR1021137A - Device for the application or removal, without direct contact, of an electrical voltage with a view to commissioning electrically powered devices - Google Patents

Device for the application or removal, without direct contact, of an electrical voltage with a view to commissioning electrically powered devices

Info

Publication number
FR1021137A
FR1021137A FR1021137DA FR1021137A FR 1021137 A FR1021137 A FR 1021137A FR 1021137D A FR1021137D A FR 1021137DA FR 1021137 A FR1021137 A FR 1021137A
Authority
FR
France
Prior art keywords
commissioning
removal
application
view
direct contact
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
Other languages
French (fr)
Inventor
Leon Forberg
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 filed Critical
Application granted granted Critical
Publication of FR1021137A publication Critical patent/FR1021137A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Marketing (AREA)
  • Accounting & Taxation (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Business, Economics & Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
FR1021137D 1950-06-29 1950-06-29 Device for the application or removal, without direct contact, of an electrical voltage with a view to commissioning electrically powered devices Expired FR1021137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1021137T 1950-06-29

Publications (1)

Publication Number Publication Date
FR1021137A true FR1021137A (en) 1953-02-16

Family

ID=9576779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1021137D Expired FR1021137A (en) 1950-06-29 1950-06-29 Device for the application or removal, without direct contact, of an electrical voltage with a view to commissioning electrically powered devices

Country Status (1)

Country Link
FR (1) FR1021137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176212B (en) * 1961-04-27 1964-08-20 Siemens Ag Contactless signaling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176212B (en) * 1961-04-27 1964-08-20 Siemens Ag Contactless signaling device

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