GB8721800D0 - Measuring proximity of metal object - Google Patents

Measuring proximity of metal object

Info

Publication number
GB8721800D0
GB8721800D0 GB878721800A GB8721800A GB8721800D0 GB 8721800 D0 GB8721800 D0 GB 8721800D0 GB 878721800 A GB878721800 A GB 878721800A GB 8721800 A GB8721800 A GB 8721800A GB 8721800 D0 GB8721800 D0 GB 8721800D0
Authority
GB
United Kingdom
Prior art keywords
metal object
measuring proximity
proximity
measuring
metal
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.)
Granted
Application number
GB878721800A
Other versions
GB2200216B (en
GB2200216A (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.)
KOLECTRIC Ltd
Original Assignee
KOLECTRIC 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 KOLECTRIC Ltd filed Critical KOLECTRIC Ltd
Publication of GB8721800D0 publication Critical patent/GB8721800D0/en
Priority to EP88300148A priority Critical patent/EP0274450A3/en
Publication of GB2200216A publication Critical patent/GB2200216A/en
Application granted granted Critical
Publication of GB2200216B publication Critical patent/GB2200216B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
GB8721800A 1987-01-09 1987-09-16 A device for measuring the proximity of a metal object Expired - Fee Related GB2200216B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88300148A EP0274450A3 (en) 1987-01-09 1988-01-08 A device for measuring the proximity of a metal object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878700509A GB8700509D0 (en) 1987-01-09 1987-01-09 Measuring proximity of metal object

Publications (3)

Publication Number Publication Date
GB8721800D0 true GB8721800D0 (en) 1987-10-21
GB2200216A GB2200216A (en) 1988-07-27
GB2200216B GB2200216B (en) 1991-03-06

Family

ID=10610503

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878700509A Pending GB8700509D0 (en) 1987-01-09 1987-01-09 Measuring proximity of metal object
GB8721800A Expired - Fee Related GB2200216B (en) 1987-01-09 1987-09-16 A device for measuring the proximity of a metal object

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878700509A Pending GB8700509D0 (en) 1987-01-09 1987-01-09 Measuring proximity of metal object

Country Status (1)

Country Link
GB (2) GB8700509D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000748A1 (en) * 1988-07-11 1990-01-25 Bayliss Electronic Industries Pty. Ltd. Metal/mineral detector with received signal sampling
GB8828675D0 (en) * 1988-12-08 1989-01-11 Protovale Oxford Ltd Instrument for locating & measuring reinforcing bars
FI84208C (en) * 1989-01-31 1991-10-25 Outokumpu Oy Method for detecting metal objects
GB2257528A (en) * 1991-06-18 1993-01-13 Colebrand Ltd Locating the position of ferrous reinforcement in a structure
GB2262606B (en) * 1991-12-16 1995-05-31 Radiodetection Ltd Metal detector

Also Published As

Publication number Publication date
GB2200216B (en) 1991-03-06
GB2200216A (en) 1988-07-27
GB8700509D0 (en) 1987-02-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020916