JPS56140276A - Measuring device of buried position of underground cable - Google Patents

Measuring device of buried position of underground cable

Info

Publication number
JPS56140276A
JPS56140276A JP4316680A JP4316680A JPS56140276A JP S56140276 A JPS56140276 A JP S56140276A JP 4316680 A JP4316680 A JP 4316680A JP 4316680 A JP4316680 A JP 4316680A JP S56140276 A JPS56140276 A JP S56140276A
Authority
JP
Japan
Prior art keywords
buried
frame
search
coil
magnetic field
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.)
Pending
Application number
JP4316680A
Other languages
Japanese (ja)
Inventor
Susumu Hasegawa
Ryosuke Kaizu
Michihiko Kusunoki
Satoshi Yamazaki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4316680A priority Critical patent/JPS56140276A/en
Publication of JPS56140276A publication Critical patent/JPS56140276A/en
Pending 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electric Cable Installation (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To search buried position of an underground cable with high accuracy removing the disturbance caused by buried metallic body around here by measuring the ground surface magnetic field with plurality of search coils attached to a frame having a matrix construction. CONSTITUTION:A frame 2 is set straddling a cable buried position so that it may be approximiately right angle to the buried direction thereof. Then, the frame 2 is moved horizontally and fixed initially at a point where magnetic field intensity signals of searh coils 3a, 3b, and 3c mounted horizontally to the frame. Then, detecting signals of search coils 4a-21a designed at arbitrary angles are selected by a scanning part 27, amplified selectively in order, input to a coil rotation cotrolling part 30 and control the angle of the coil so that an induced voltage of the search coil may be min. This angle shows a direction of the magnetic field in this point and an output of each of search coils 4b-21b perpendicular to this shows a magnetic intensity. The buried position of the cable can be confirmed by the selection of the output of efficacious coil group having a fluxity even if there exists another buried material in its neighbourhood.
JP4316680A 1980-04-02 1980-04-02 Measuring device of buried position of underground cable Pending JPS56140276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4316680A JPS56140276A (en) 1980-04-02 1980-04-02 Measuring device of buried position of underground cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4316680A JPS56140276A (en) 1980-04-02 1980-04-02 Measuring device of buried position of underground cable

Publications (1)

Publication Number Publication Date
JPS56140276A true JPS56140276A (en) 1981-11-02

Family

ID=12656284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4316680A Pending JPS56140276A (en) 1980-04-02 1980-04-02 Measuring device of buried position of underground cable

Country Status (1)

Country Link
JP (1) JPS56140276A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162474A (en) * 1983-02-16 1984-09-13 マ−ク・イアン・ホウエル Electromagnetic surveying device for conductor
JPS59183387A (en) * 1983-04-01 1984-10-18 Nec Corp System for measuring laid depth of submarine conductor
JPS629286A (en) * 1985-07-05 1987-01-17 Tokyo Gas Co Ltd Method and device for detecting underground installation
US4691165A (en) * 1982-07-09 1987-09-01 Laszlo Szedlmajer Method and apparatus including spaced antennas for determining the trace and depth of underground metallic conductors
JPS6335978U (en) * 1986-08-26 1988-03-08
JPS6355448A (en) * 1986-08-26 1988-03-09 Tokyo Gas Co Ltd Method and device for deciding deterioration of covering of buried object
JPS64481A (en) * 1986-06-26 1989-01-05 Nkk Corp Detection of damage of coated film
CN106482630A (en) * 2016-12-26 2017-03-08 爱德森（厦门）电子有限公司 A kind of utilization mutual inductor matrix measures the device and method of xoncrete structure deformation
CN107808203A (en) * 2017-10-27 2018-03-16 广东电网有限责任公司中山供电局 Electric power testing underground cable path fast searching method and system based on foot path and panorama VR

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691165A (en) * 1982-07-09 1987-09-01 Laszlo Szedlmajer Method and apparatus including spaced antennas for determining the trace and depth of underground metallic conductors
JPS59162474A (en) * 1983-02-16 1984-09-13 マ−ク・イアン・ホウエル Electromagnetic surveying device for conductor
JPS59183387A (en) * 1983-04-01 1984-10-18 Nec Corp System for measuring laid depth of submarine conductor
JPH0820524B2 (en) * 1983-04-01 1996-03-04 日本電気株式会社 Burial depth measuring device from detector of buried conductor
JPS629286A (en) * 1985-07-05 1987-01-17 Tokyo Gas Co Ltd Method and device for detecting underground installation
JPS64481A (en) * 1986-06-26 1989-01-05 Nkk Corp Detection of damage of coated film
JPS6335978U (en) * 1986-08-26 1988-03-08
JPS6355448A (en) * 1986-08-26 1988-03-09 Tokyo Gas Co Ltd Method and device for deciding deterioration of covering of buried object
CN106482630A (en) * 2016-12-26 2017-03-08 爱德森（厦门）电子有限公司 A kind of utilization mutual inductor matrix measures the device and method of xoncrete structure deformation
CN107808203A (en) * 2017-10-27 2018-03-16 广东电网有限责任公司中山供电局 Electric power testing underground cable path fast searching method and system based on foot path and panorama VR

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