JPS56108986A - Cable tracking system - Google Patents

Cable tracking system

Info

Publication number
JPS56108986A
JPS56108986A JP1153780A JP1153780A JPS56108986A JP S56108986 A JPS56108986 A JP S56108986A JP 1153780 A JP1153780 A JP 1153780A JP 1153780 A JP1153780 A JP 1153780A JP S56108986 A JPS56108986 A JP S56108986A
Authority
JP
Japan
Prior art keywords
magnetic
signal
cable
detection sensor
field detection
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
JP1153780A
Other languages
Japanese (ja)
Other versions
JPS6312267B2 (en
Inventor
Yuichi Shirasaki
Yoshinao Iwamoto
Shizuo Suzuki
Kenichi Asakawa
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP1153780A priority Critical patent/JPS56108986A/en
Publication of JPS56108986A publication Critical patent/JPS56108986A/en
Publication of JPS6312267B2 publication Critical patent/JPS6312267B2/ja
Granted 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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To detect the position of a cable by utilizing the phenomenon that the phase of the detection signal of a magnetic-field detection sensor is inverted across the point right over the cable. CONSTITUTION:From the end of objective cable 5, a signal current is supplied by AC signal supply part 4, and with it, magnetic-field detection sensor part 1 detects an AC magnetic field generated around cable 5. Magnetic-field detection sensor part 1 consists of magnetic-field detection sensors 101-108 arranged so that maximum sensitivity directions of detection directivity will be equal and nearly in parallel to the horizontal surface, and one phase reference magnetic-field detection sensor 110 arranged at right angles to the direction of those sensors 101-108. Of the detected signal, only the magnetic-field signal components are amplified by signal reception part 2 and then signals of detection sensors 101-108 are detected synchronously with the signal of magnetic-field detection sensor 110. Signal processing display part 3 discriminates the polarity of the signal and, according to the polarity, turns on-off a display lamp to display the position of the cable.
JP1153780A 1980-02-04 1980-02-04 Cable tracking system Granted JPS56108986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1153780A JPS56108986A (en) 1980-02-04 1980-02-04 Cable tracking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1153780A JPS56108986A (en) 1980-02-04 1980-02-04 Cable tracking system

Publications (2)

Publication Number Publication Date
JPS56108986A true JPS56108986A (en) 1981-08-28
JPS6312267B2 JPS6312267B2 (en) 1988-03-18

Family

ID=11780704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1153780A Granted JPS56108986A (en) 1980-02-04 1980-02-04 Cable tracking system

Country Status (1)

Country Link
JP (1) JPS56108986A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002514A1 (en) * 1988-09-13 1990-03-22 Pharmacia Deltec Inc. Method and apparatus for catheter location determination
US5944023A (en) * 1995-12-07 1999-08-31 Sims Deltec, Inc. Systems and methods for determining the location of an implanted device including a magnet
JP2011516827A (en) * 2008-03-06 2011-05-26 ジルコン・コーポレイション Ratiometric AC wire tracer
EP2669694A1 (en) * 2012-06-01 2013-12-04 Hagenuk KMT Kabelmesstechnik GmbH Method for targeted localisation of a fault point and a device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028401A (en) * 1973-07-18 1975-03-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028401A (en) * 1973-07-18 1975-03-24

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002514A1 (en) * 1988-09-13 1990-03-22 Pharmacia Deltec Inc. Method and apparatus for catheter location determination
US5944023A (en) * 1995-12-07 1999-08-31 Sims Deltec, Inc. Systems and methods for determining the location of an implanted device including a magnet
JP2011516827A (en) * 2008-03-06 2011-05-26 ジルコン・コーポレイション Ratiometric AC wire tracer
EP2669694A1 (en) * 2012-06-01 2013-12-04 Hagenuk KMT Kabelmesstechnik GmbH Method for targeted localisation of a fault point and a device
US9158023B2 (en) 2012-06-01 2015-10-13 Hagenuk Kmt Kabelmesstechnik Gmbh Method and apparatus for target-guided localizing of a cable fault

Also Published As

Publication number Publication date
JPS6312267B2 (en) 1988-03-18

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