DE2554039A1 - Antennensystem - Google Patents

Antennensystem

Info

Publication number
DE2554039A1
DE2554039A1 DE19752554039 DE2554039A DE2554039A1 DE 2554039 A1 DE2554039 A1 DE 2554039A1 DE 19752554039 DE19752554039 DE 19752554039 DE 2554039 A DE2554039 A DE 2554039A DE 2554039 A1 DE2554039 A1 DE 2554039A1
Authority
DE
Germany
Prior art keywords
antenna
antennas
frame
display
antenna arrangement
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Withdrawn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
DE19752554039
Other languages
German (de)
English (en)
Inventor
Mark Ian Howell
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
Electrolocation 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
Priority to FR7536235A priority Critical patent/FR2333256A1/fr
Application filed by Electrolocation Ltd filed Critical Electrolocation Ltd
Priority to NL7514048A priority patent/NL7514048A/xx
Priority to DE19752554039 priority patent/DE2554039A1/de
Priority to BE162558A priority patent/BE836418A/xx
Publication of DE2554039A1 publication Critical patent/DE2554039A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
    • 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
    • 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
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/01—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the shape of the antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)
DE19752554039 1975-11-26 1975-12-02 Antennensystem Withdrawn DE2554039A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7536235A FR2333256A1 (fr) 1975-11-26 1975-11-26 Reseaux d'antennes, notamment destines a l'inspection electromagnetique pour la recherche de defauts ou de derangements souterrains a des conduites et des cables
NL7514048A NL7514048A (nl) 1975-11-26 1975-12-02 Antenne.
DE19752554039 DE2554039A1 (de) 1975-11-26 1975-12-02 Antennensystem
BE162558A BE836418A (fr) 1975-11-26 1975-12-09 Perfectionnement aux reseaux d'antennes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7536235A FR2333256A1 (fr) 1975-11-26 1975-11-26 Reseaux d'antennes, notamment destines a l'inspection electromagnetique pour la recherche de defauts ou de derangements souterrains a des conduites et des cables
NL7514048A NL7514048A (nl) 1975-11-26 1975-12-02 Antenne.
DE19752554039 DE2554039A1 (de) 1975-11-26 1975-12-02 Antennensystem
BE162558A BE836418A (fr) 1975-11-26 1975-12-09 Perfectionnement aux reseaux d'antennes

Publications (1)

Publication Number Publication Date
DE2554039A1 true DE2554039A1 (de) 1977-06-08

Family

ID=27424647

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752554039 Withdrawn DE2554039A1 (de) 1975-11-26 1975-12-02 Antennensystem

Country Status (4)

Country Link
BE (1) BE836418A (enExample)
DE (1) DE2554039A1 (enExample)
FR (1) FR2333256A1 (enExample)
NL (1) NL7514048A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190569A3 (en) * 1985-02-06 1987-10-28 Eltro Gmbh Gesellschaft Fur Strahlungstechnik Broad-band directional-antenna arrangement
DE19518420A1 (de) * 1995-05-19 1996-11-21 Diether Alfred Schroeder Schaltungsanordnung zur Verwendung in einem geophysikalischen Prospektionsverfahren

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU185723B (en) * 1982-07-09 1985-03-28 Laszlo Szedlmajer Method and apparatus for determining the track and depth of under grund lines
GB8304330D0 (en) * 1983-02-16 1983-03-23 Howell M I Electromagnetic surveying of pipes and cables

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190569A3 (en) * 1985-02-06 1987-10-28 Eltro Gmbh Gesellschaft Fur Strahlungstechnik Broad-band directional-antenna arrangement
DE19518420A1 (de) * 1995-05-19 1996-11-21 Diether Alfred Schroeder Schaltungsanordnung zur Verwendung in einem geophysikalischen Prospektionsverfahren
DE19518420C2 (de) * 1995-05-19 1998-01-02 Diether Alfred Schroeder Schaltungsanordnung zur Verwendung in einem geophysikalischen Prospektionsverfahren
US5767679A (en) * 1995-05-19 1998-06-16 Schroeder; Diether-Alfred Geophysical prospecting apparatus utilizing pulsed electromagnetic signals and having a scanned four-cycle transmitter

Also Published As

Publication number Publication date
FR2333256B3 (enExample) 1978-09-01
BE836418A (fr) 1976-04-01
FR2333256A1 (fr) 1977-06-24
NL7514048A (nl) 1977-06-06

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal