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FR2361672A1 - Electronic metal detector system - employs coil assembly folding into cut away section of case and which operates switch - Google Patents

Electronic metal detector system - employs coil assembly folding into cut away section of case and which operates switch

Info

Publication number
FR2361672A1
FR2361672A1 FR7724333A FR7724333A FR2361672A1 FR 2361672 A1 FR2361672 A1 FR 2361672A1 FR 7724333 A FR7724333 A FR 7724333A FR 7724333 A FR7724333 A FR 7724333A FR 2361672 A1 FR2361672 A1 FR 2361672A1
Authority
FR
France
Prior art keywords
coil assembly
cut away
case
away section
metal detector
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.)
Withdrawn
Application number
FR7724333A
Other languages
French (fr)
Inventor
Horst Hartmann
Horst Holzl
Ulrich Stabernack
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.)
MURR PLASTIK GmbH
Original Assignee
MURR PLASTIK GmbH
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
Priority claimed from DE19762636079 external-priority patent/DE2636079A1/en
Application filed by MURR PLASTIK GmbH filed Critical MURR PLASTIK GmbH
Publication of FR2361672A1 publication Critical patent/FR2361672A1/en
Withdrawn legal-status Critical Current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
    • 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

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The case for an electronic metal detector is shaped so that a coil assembly can fold into a space to form a compact detector. Movement of the coil assembly to the operating position operates an on off switch. A detector comprises a rectangular plastic case (1) with a cut away section (2). A transmitting and receiving coil assembly (3) pivots (4) on the casing in order to fold it into the cut away section which also houses an electroluminescent diode (6) and a potentiometer 5) with knurled knob. The circuit on off switch (7) is operated when the coil assembly pivots. A clip (11) permits the detector to be fixed into a pocket.
FR7724333A 1976-08-11 1977-08-08 Electronic metal detector system - employs coil assembly folding into cut away section of case and which operates switch Withdrawn FR2361672A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19762636079 DE2636079A1 (en) 1976-08-11 1976-08-11 Line finder with voltage tester - is designed for compactness whilst not operational and unfolds to give adequate battery-core operating separation
DE2722001 1977-05-14

Publications (1)

Publication Number Publication Date
FR2361672A1 true FR2361672A1 (en) 1978-03-10

Family

ID=25770801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724333A Withdrawn FR2361672A1 (en) 1976-08-11 1977-08-08 Electronic metal detector system - employs coil assembly folding into cut away section of case and which operates switch

Country Status (2)

Country Link
FR (1) FR2361672A1 (en)
IT (1) IT1081543B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529937A (en) * 1982-12-27 1985-07-16 Cornelius Billie G Metal detector with spring loaded hinged support
EP0219855A2 (en) * 1985-10-24 1987-04-29 Klaus Ebinger Method for searching and sounding inhomogeneities, and circuitry for carrying out this method
CN112665471A (en) * 2020-12-24 2021-04-16 昆明理工大学 Residual detonator detection device after mine blasting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529937A (en) * 1982-12-27 1985-07-16 Cornelius Billie G Metal detector with spring loaded hinged support
EP0219855A2 (en) * 1985-10-24 1987-04-29 Klaus Ebinger Method for searching and sounding inhomogeneities, and circuitry for carrying out this method
EP0219855A3 (en) * 1985-10-24 1988-04-06 Klaus Ebinger Method for searching and sounding inhomogeneities, and circuitry for carrying out this method
CN112665471A (en) * 2020-12-24 2021-04-16 昆明理工大学 Residual detonator detection device after mine blasting

Also Published As

Publication number Publication date
IT1081543B (en) 1985-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse