GB8909439D0 - Improvements relating to underground pipe and cable location - Google Patents

Improvements relating to underground pipe and cable location

Info

Publication number
GB8909439D0
GB8909439D0 GB898909439A GB8909439A GB8909439D0 GB 8909439 D0 GB8909439 D0 GB 8909439D0 GB 898909439 A GB898909439 A GB 898909439A GB 8909439 A GB8909439 A GB 8909439A GB 8909439 D0 GB8909439 D0 GB 8909439D0
Authority
GB
United Kingdom
Prior art keywords
underground pipe
improvements relating
cable location
cable
location
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Withdrawn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
GB898909439A
Other versions
GB2220071A (en
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.)
Radiodetection Ltd
Original Assignee
Radiodetection Ltd
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 Radiodetection Ltd filed Critical Radiodetection Ltd
Publication of GB8909439D0 publication Critical patent/GB8909439D0/en
Publication of GB2220071A publication Critical patent/GB2220071A/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Withdrawn legal-status Critical Current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
    • G01V3/02—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)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB8909439A 1988-06-28 1989-04-25 Method and apparatus for the location of underground pipes and cables Withdrawn GB2220071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888815314A GB8815314D0 (en) 1988-06-28 1988-06-28 Improvements relating to underground pipe & cable location

Publications (2)

Publication Number Publication Date
GB8909439D0 true GB8909439D0 (en) 1989-06-14
GB2220071A GB2220071A (en) 1989-12-28

Family

ID=10639468

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888815314A Pending GB8815314D0 (en) 1988-06-28 1988-06-28 Improvements relating to underground pipe & cable location
GB8909439A Withdrawn GB2220071A (en) 1988-06-28 1989-04-25 Method and apparatus for the location of underground pipes and cables

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888815314A Pending GB8815314D0 (en) 1988-06-28 1988-06-28 Improvements relating to underground pipe & cable location

Country Status (1)

Country Link
GB (2) GB8815314D0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409900B (en) 2004-01-09 2006-05-24 Statoil Asa Processing seismic data representing a physical system
US7356421B2 (en) * 2004-07-29 2008-04-08 Metrotech Corporation, Inc. Precise location of buried metallic pipes and cables in the presence of signal distortion
GB2420855B (en) * 2004-12-02 2009-08-26 Electromagnetic Geoservices As Source for electromagnetic surveying
GB2435693A (en) 2006-02-09 2007-09-05 Electromagnetic Geoservices As Seabed electromagnetic surveying
CN100480733C (en) * 2006-03-13 2009-04-22 南京工业大学 Ground measuring method of metal pipeline loading current underground
GB2439378B (en) 2006-06-09 2011-03-16 Electromagnetic Geoservices As Instrument for measuring electromagnetic signals
GB2442749B (en) 2006-10-12 2010-05-19 Electromagnetic Geoservices As Positioning system
EP2278358A1 (en) * 2009-07-22 2011-01-26 Leica Geosystems AG Method and system for detecting the proximity of a conductive, buried structure
US10809410B2 (en) 2016-06-09 2020-10-20 Optimal Ranging, Inc. Method and apparatus for simultaneous inductive excitation and locating of utilities
US10725191B2 (en) 2016-06-09 2020-07-28 Optimal Ranging, Inc. Method and apparatus for simultaneous inductive excitation and locating of utilities

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB241251A (en) * 1924-06-12 1925-10-12 Piepmeyer & Co Kommanditgesell Apparatus for detecting and determining the position of stretches of underground of different electric conductivity
GB339964A (en) * 1928-12-05 1930-12-12 Richard Ambronn Improved process for investigating the geological structure of the sub-soil
GB8625365D0 (en) * 1986-10-23 1986-11-26 Radiodetection Ltd Positional information systems

Also Published As

Publication number Publication date
GB8815314D0 (en) 1988-08-03
GB2220071A (en) 1989-12-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)