BE842931A - Perfectionnements relatifs a la localisation de cables ou de conduits souterrains - Google Patents

Perfectionnements relatifs a la localisation de cables ou de conduits souterrains

Info

Publication number
BE842931A
BE842931A BE167901A BE167901A BE842931A BE 842931 A BE842931 A BE 842931A BE 167901 A BE167901 A BE 167901A BE 167901 A BE167901 A BE 167901A BE 842931 A BE842931 A BE 842931A
Authority
BE
Belgium
Prior art keywords
ducts
location
improvements relating
underground cables
underground
Prior art date
Application number
BE167901A
Other languages
English (en)
French (fr)
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
Publication of BE842931A publication Critical patent/BE842931A/xx

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
    • 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
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
BE167901A 1975-06-14 1976-06-14 Perfectionnements relatifs a la localisation de cables ou de conduits souterrains BE842931A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25485/75A GB1509380A (en) 1975-06-14 1975-06-14 Underground metal pipe or cable location

Publications (1)

Publication Number Publication Date
BE842931A true BE842931A (fr) 1976-10-01

Family

ID=10228467

Family Applications (1)

Application Number Title Priority Date Filing Date
BE167901A BE842931A (fr) 1975-06-14 1976-06-14 Perfectionnements relatifs a la localisation de cables ou de conduits souterrains

Country Status (8)

Country Link
JP (1) JPS588477B2 (sv)
AU (1) AU1492476A (sv)
BE (1) BE842931A (sv)
DE (1) DE2626532C2 (sv)
FR (1) FR2314507A1 (sv)
GB (1) GB1509380A (sv)
NL (1) NL7606428A (sv)
SE (1) SE7606703L (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719426A (en) * 1983-01-20 1988-01-12 Scopemoor Limited Method for magnetically detecting a localized disturbance of the ground
GB2174203B (en) * 1985-04-19 1988-11-16 Plessey Co Plc Underground cable detectors
GB2215063A (en) * 1988-02-18 1989-09-13 Tokyo Gas Co Ltd Detecting buried conductors
US5361029A (en) * 1990-06-18 1994-11-01 The Charles Machine Works, Inc. System for locating multiple concealed underground objects
JPH0370963U (sv) * 1990-11-05 1991-07-17
GB9110427D0 (en) * 1991-05-14 1991-07-03 Howell Mark I Improved device and method for locating buried conductors
GB9409431D0 (en) * 1994-05-11 1994-06-29 British Gas Plc Method and apparatus for locating a buried element
DE19518420C2 (de) * 1995-05-19 1998-01-02 Diether Alfred Schroeder Schaltungsanordnung zur Verwendung in einem geophysikalischen Prospektionsverfahren
US7671576B2 (en) * 2008-03-06 2010-03-02 Zircon Corporation Ratiometric AC wire tracer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR960966A (sv) * 1950-04-28
JPS5148805Y2 (sv) * 1971-12-02 1976-11-25

Also Published As

Publication number Publication date
DE2626532C2 (de) 1984-10-31
SE7606703L (sv) 1976-12-15
JPS5231766A (en) 1977-03-10
GB1509380A (en) 1978-05-04
NL7606428A (nl) 1976-12-16
AU1492476A (en) 1977-12-22
FR2314507B3 (sv) 1979-03-02
DE2626532A1 (de) 1976-12-30
FR2314507A1 (fr) 1977-01-07
JPS588477B2 (ja) 1983-02-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ELECTROLOCATION LTD

Effective date: 19840614