JPS59141001A - 金属管の有効端末位置検出方法 - Google Patents

金属管の有効端末位置検出方法

Info

Publication number
JPS59141001A
JPS59141001A JP1570783A JP1570783A JPS59141001A JP S59141001 A JPS59141001 A JP S59141001A JP 1570783 A JP1570783 A JP 1570783A JP 1570783 A JP1570783 A JP 1570783A JP S59141001 A JPS59141001 A JP S59141001A
Authority
JP
Japan
Prior art keywords
metal tube
steel pipe
detection sensors
output
gap
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
JP1570783A
Other languages
English (en)
Japanese (ja)
Inventor
Tsugio Sekii
次男 関井
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1570783A priority Critical patent/JPS59141001A/ja
Priority to DE19843403137 priority patent/DE3403137A1/de
Publication of JPS59141001A publication Critical patent/JPS59141001A/ja
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
    • 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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
JP1570783A 1983-02-01 1983-02-01 金属管の有効端末位置検出方法 Pending JPS59141001A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1570783A JPS59141001A (ja) 1983-02-01 1983-02-01 金属管の有効端末位置検出方法
DE19843403137 DE3403137A1 (de) 1983-02-01 1984-01-30 Verfahren und vorrichtung zum erfassen der tatsaechlichen endposition eines metallenen rohres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1570783A JPS59141001A (ja) 1983-02-01 1983-02-01 金属管の有効端末位置検出方法

Publications (1)

Publication Number Publication Date
JPS59141001A true JPS59141001A (ja) 1984-08-13

Family

ID=11896235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1570783A Pending JPS59141001A (ja) 1983-02-01 1983-02-01 金属管の有効端末位置検出方法

Country Status (2)

Country Link
JP (1) JPS59141001A (cs)
DE (1) DE3403137A1 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523753A (en) * 1994-09-12 1996-06-04 Minnesota Mining And Manufacturing Company Vehicle detector system with periodic source filtering

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210181A (en) * 1968-04-10 1970-10-28 Rank Organisation Ltd Improvements in or relating to electrical filter devices
FR2420119A1 (fr) * 1978-03-17 1979-10-12 Telemecanique Electrique Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance
DE2815004C2 (de) * 1978-04-07 1987-02-05 Textilma Ag, Hergiswil Flach- oder Rundmaschine zur Herstellung einer Bindungsware
FR2473700A1 (fr) * 1980-01-11 1981-07-17 Jaeger Capteur de proximite
FR2492968A1 (fr) * 1980-10-29 1982-04-30 Petroles Cie Francaise Procede et dispositif de mesure de l'ovalisation d'une conduite
SE426269B (sv) * 1981-05-06 1982-12-20 Bofors Ab Anordning vid detektering av metallforemal

Also Published As

Publication number Publication date
DE3403137C2 (cs) 1987-09-03
DE3403137A1 (de) 1984-08-02

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