JPH0553234B2 - - Google Patents

Info

Publication number
JPH0553234B2
JPH0553234B2 JP62212369A JP21236987A JPH0553234B2 JP H0553234 B2 JPH0553234 B2 JP H0553234B2 JP 62212369 A JP62212369 A JP 62212369A JP 21236987 A JP21236987 A JP 21236987A JP H0553234 B2 JPH0553234 B2 JP H0553234B2
Authority
JP
Japan
Prior art keywords
buried
magnetic
pipe
pipes
concrete
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.)
Expired - Lifetime
Application number
JP62212369A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6454279A (en
Inventor
Tanenao Inoe
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.)
Kajima Corp
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP62212369A priority Critical patent/JPS6454279A/ja
Publication of JPS6454279A publication Critical patent/JPS6454279A/ja
Publication of JPH0553234B2 publication Critical patent/JPH0553234B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
JP62212369A 1987-08-25 1987-08-25 Detection of pipe body or the like Granted JPS6454279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62212369A JPS6454279A (en) 1987-08-25 1987-08-25 Detection of pipe body or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62212369A JPS6454279A (en) 1987-08-25 1987-08-25 Detection of pipe body or the like

Publications (2)

Publication Number Publication Date
JPS6454279A JPS6454279A (en) 1989-03-01
JPH0553234B2 true JPH0553234B2 (enExample) 1993-08-09

Family

ID=16621420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62212369A Granted JPS6454279A (en) 1987-08-25 1987-08-25 Detection of pipe body or the like

Country Status (1)

Country Link
JP (1) JPS6454279A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006806A (en) * 1989-03-15 1991-04-09 Schonstedt Instrument Company Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
US5098642A (en) * 1989-09-18 1992-03-24 General Electric Company System for identification of components
WO2009139063A1 (ja) 2008-05-15 2009-11-19 富士通マイクロエレクトロニクス株式会社 パターン作成方法およびパターン作成プログラム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58111776A (ja) * 1981-12-25 1983-07-02 Hitachi Metals Ltd 配管検知装置
JPS6126882A (ja) * 1984-07-18 1986-02-06 Kokusai Denshin Denwa Co Ltd <Kdd> 長尺磁性体
JPH0244318Y2 (enExample) * 1984-11-21 1990-11-26

Also Published As

Publication number Publication date
JPS6454279A (en) 1989-03-01

Similar Documents

Publication Publication Date Title
US5122750A (en) Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
CA2028152C (en) Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
EP0977015A3 (en) Magnetic sensor, signal processing method for magnetic sensors, and detecting apparatus
DE69617549D1 (de) Aliasing-Probennehmer zur Detektion mit einer Plasmasonde
DE68920582D1 (de) System und verfahren zur lokalisierung einer unterirdischen sonde.
ATE289688T1 (de) Detektorsystem
FR2691534B1 (fr) Capteur de position à aimant permanent et sonde de hall.
DE59812241D1 (de) Sensoreinrichtung zur Richtungserfassung eines äu eren Magnetfeldes mittels eines magnetoresistiven Sensorelementes
NO20032870L (no) Maling av strekkspenning i et ferromagnetisk material
DE69709940D1 (de) Vorrichtung zur erkennung der winkelposition für die lageregelung eines synchronmotors mit permanent-magnet-erregung
JPH0553234B2 (enExample)
DE69715531D1 (de) Vorrichtung und Verfahren zum Messen des Korrosionsgrades von Kabeln
GB2197485A (en) Device for locating rods buried in concrete
JPS6082881A (ja) 合成樹脂製埋設管の探知方法
WO1994024584A1 (en) Methods of detecting location of magnetically-marked elongated buried objects
JPS6126882A (ja) 長尺磁性体
JPH0532717B2 (enExample)
DE69001534D1 (de) Verfahren und anlage zur detektierung von umkehrungen des erdmagnetischen feldes durch messungen in einem bohrloch.
JP2588057Y2 (ja) 地中埋設管
JPS58111776A (ja) 配管検知装置
JPS6245940B2 (enExample)
JP4037721B2 (ja) 標示器
JPS61292085A (ja) 磁界検出装置
JPS5460487A (en) Method of detecting steel material position at compressed connection sections
KR100513078B1 (ko) 전방향성 자기장 발생장치