FR1574261A - - Google Patents

Info

Publication number
FR1574261A
FR1574261A FR1574261DA FR1574261A FR 1574261 A FR1574261 A FR 1574261A FR 1574261D A FR1574261D A FR 1574261DA FR 1574261 A FR1574261 A FR 1574261A
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
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 FR1574261A publication Critical patent/FR1574261A/fr
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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR1574261D 1967-06-01 1968-07-03 Expired FR1574261A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0092812 1967-06-01

Publications (1)

Publication Number Publication Date
FR1574261A true FR1574261A (fr) 1969-07-11

Family

ID=6986607

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1574261D Expired FR1574261A (fr) 1967-06-01 1968-07-03

Country Status (3)

Country Link
DE (1) DE1698658B1 (fr)
FR (1) FR1574261A (fr)
GB (1) GB1228645A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212363C2 (de) * 1992-04-13 1997-10-02 Klaus Ebinger Ing Metalldetektor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE254478C (fr) *
DE378224C (de) * 1922-09-20 1923-11-16 Erda Akt Ges Vorrichtung zur Bestimmung von Richtung, Intensitaet und Polarisationszustand elektrischer Wellen, insbesondere zu Erderforschungszwecken in Bergwerken
FR883046A (fr) * 1941-07-19 1943-06-22 Lorenz C Ag Procédé servant à éliminer l'influence terrestre dans les appareils qui sont destinés à déterminer la position de corps métalliques cachés dans le sol
DE1192758B (de) * 1949-12-07 1965-05-13 Dr Friedrich Ludwig Machts Sende- und Empfangseinrichtung zum Auffinden geologischer Verschiedenheiten im Erdboden und dem Auge verborgener Koerper
DE932509C (de) * 1953-06-14 1955-09-01 Socony Vacuum Oil Company Dielektrische Untersuchung durchteufter Bodenschichten
DE1025077B (de) * 1955-09-17 1958-02-27 Asea Ab Aus einem Schwingungskreis bestehende Anordnung zur Untersuchung von Material

Also Published As

Publication number Publication date
DE1698658B1 (de) 1971-02-04
GB1228645A (fr) 1971-04-15

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Legal Events

Date Code Title Description
ST Notification of lapse