BR8902161A - Processo para determinar a localizacao oculta de qualquer um de um primeiro condutor eletrico isolado e uma pluralidade de condutores eletricos isolados e sistema com circuitos para conducao de sinais alternados - Google Patents

Processo para determinar a localizacao oculta de qualquer um de um primeiro condutor eletrico isolado e uma pluralidade de condutores eletricos isolados e sistema com circuitos para conducao de sinais alternados

Info

Publication number
BR8902161A
BR8902161A BR898902161A BR8902161A BR8902161A BR 8902161 A BR8902161 A BR 8902161A BR 898902161 A BR898902161 A BR 898902161A BR 8902161 A BR8902161 A BR 8902161A BR 8902161 A BR8902161 A BR 8902161A
Authority
BR
Brazil
Prior art keywords
conductor
insulated electric
conductors
circuits
branch
Prior art date
Application number
BR898902161A
Other languages
English (en)
Inventor
Armond D Cosman
Joe T Minarovic
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of BR8902161A publication Critical patent/BR8902161A/pt

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • 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)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Filters And Equalizers (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Communication Cables (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
BR898902161A 1988-05-11 1989-05-09 Processo para determinar a localizacao oculta de qualquer um de um primeiro condutor eletrico isolado e uma pluralidade de condutores eletricos isolados e sistema com circuitos para conducao de sinais alternados BR8902161A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/193,250 US4866388A (en) 1988-05-11 1988-05-11 System and method with passive resonant circuit markers for locating buried electrical conductors

Publications (1)

Publication Number Publication Date
BR8902161A true BR8902161A (pt) 1990-01-02

Family

ID=22712835

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898902161A BR8902161A (pt) 1988-05-11 1989-05-09 Processo para determinar a localizacao oculta de qualquer um de um primeiro condutor eletrico isolado e uma pluralidade de condutores eletricos isolados e sistema com circuitos para conducao de sinais alternados

Country Status (11)

Country Link
US (1) US4866388A (pt)
EP (1) EP0341994B1 (pt)
JP (1) JP2858784B2 (pt)
KR (1) KR970011114B1 (pt)
AT (1) ATE88578T1 (pt)
AU (1) AU600200B2 (pt)
BR (1) BR8902161A (pt)
CA (1) CA1317005C (pt)
DE (1) DE68906073T2 (pt)
DK (1) DK173268B1 (pt)
ES (1) ES2039854T3 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430379A (en) * 1993-08-27 1995-07-04 Minnesota Mining And Manufacturing Company Conductor locator adapter for electronic markers
GB9501162D0 (en) * 1995-01-20 1995-03-08 Radiodetection Ltd Conductor identification
GB9508399D0 (en) * 1995-04-25 1995-06-14 Radiodetection Ltd Location of underground objects
US6218840B1 (en) * 1998-05-18 2001-04-17 John Fridy Warren Apparatus allowing continuous radio detection of underground utilities while maintaining cathodic isolation
US6388575B1 (en) 1999-11-05 2002-05-14 Industrial Technology, Inc. Addressable underground marker
CA2311834C (en) * 2000-06-16 2002-09-24 Norscan Instruments Ltd. An interactive method and apparatus for locating and identifying utilities
US7091872B1 (en) * 2002-07-01 2006-08-15 Metrotech Corporation Controlled power source for underground line location
US20060068754A1 (en) * 2004-09-30 2006-03-30 Helena Goldfarb System and method for securing a large infrastructure
GB0505089D0 (en) * 2005-03-11 2005-04-20 Glaxo Group Ltd System and methods for detecting environmental conditions
US8351869B2 (en) * 2005-09-22 2013-01-08 Ideal Industries, Inc. Electric circuit tracer
US7696879B2 (en) * 2007-12-18 2010-04-13 Alcatel Lucent Ascertaining physical routing of cabling interconnects
US7901306B2 (en) * 2008-03-14 2011-03-08 Minarovic Joe T Electronic marker stakes for sports fields
CN102749661B (zh) * 2011-04-22 2016-11-09 郝彤 非开挖式后装管内电子标识的安装方法
NL2014762B1 (en) * 2015-05-04 2017-01-26 Fugro Tech Bv Sensor system.
WO2017143090A1 (en) * 2016-02-16 2017-08-24 SeeScan, Inc. Buried utility marker devices and systems
US11035973B2 (en) * 2017-12-20 2021-06-15 Armada Technologies, LLC Passive underground locator beacon

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167490A (en) * 1937-05-07 1939-07-25 Henry B Burr Apparatus for locating concealed conductive bodies
US2148389A (en) * 1938-01-14 1939-02-21 Joslyn Mfg & Supply Co Signaling system and method
US4119908A (en) * 1975-11-28 1978-10-10 A. P. C. Industries, Inc. Method for locating buried markers which are disposed along the path of an underground conductor
JPS60230076A (ja) * 1984-04-27 1985-11-15 Tokyo Gas Co Ltd 埋設配管中に取り付けられた特定物体の位置を確認する方法
US4712094A (en) * 1986-05-29 1987-12-08 Minnesota Mining And Manufacturing Company Self-orienting passive marker structure
US4767237A (en) * 1986-08-26 1988-08-30 Minnesota Mining And Manufacturing Company Marking tape with wire conductors and methods for use

Also Published As

Publication number Publication date
EP0341994B1 (en) 1993-04-21
JPH01321389A (ja) 1989-12-27
DK173268B1 (da) 2000-05-29
CA1317005C (en) 1993-04-27
JP2858784B2 (ja) 1999-02-17
DK227589A (da) 1989-11-12
KR970011114B1 (ko) 1997-07-07
DK227589D0 (da) 1989-05-09
AU600200B2 (en) 1990-08-02
US4866388A (en) 1989-09-12
DE68906073D1 (de) 1993-05-27
ATE88578T1 (de) 1993-05-15
DE68906073T2 (de) 1993-09-09
EP0341994A2 (en) 1989-11-15
KR890017550A (ko) 1989-12-16
AU3380289A (en) 1989-11-16
ES2039854T3 (es) 1993-10-01
EP0341994A3 (en) 1990-08-01

Similar Documents

Publication Publication Date Title
BR8902161A (pt) Processo para determinar a localizacao oculta de qualquer um de um primeiro condutor eletrico isolado e uma pluralidade de condutores eletricos isolados e sistema com circuitos para conducao de sinais alternados
ES529612A0 (es) Perfeccionamientos en los sistemas de deteccion de hurtos mediante marcadores magneticos.
DE69021743D1 (de) Resonanzaufkleber sowie Verfahren zur Herstellung.
DK36090A (da) Antennesystem til magnetisk- og resonanskredsloebs-detektering
ATE114825T1 (de) Verfahren und vorrichtung mit permanentmagneten zum markieren, orten, verfolgen und identifizieren von verborgenen objekten wie vergrabenen lichtwellenleitern.
DE69014202D1 (de) Verfahren zur erdung eines chip-trägers mit kontaktfeldern von ultrahoher dichte.
ES2160630T3 (es) Etiqueta de frecuencia multiple.
DE3063419D1 (en) Amorphous antipilferage marker and detection system comprising same
DE69404215D1 (de) Halteklammer für einen auf eine Leiterplatte montierten elektrischen Verbinder und Verfahren für die Verwendung
EA200100996A1 (ru) Анализ несущей, модулированной изменением магнитной проницаемости
ATE22627T1 (de) Vorrichtung zur kontaktlosen uebertragung von informationen zwischen relativ zueinander rotierenden bauteilen.
DE69030057D1 (de) Elektrisches Bauelement mit Leiterbahnen
DE68918576D1 (de) Verfahren zur erniedrigung der dielektrizitätskonstante von polyimiden mit hilfe von diaminosäurezusätzen.
DE68918242D1 (de) Ferntest von Leiterschleifen mit einem Transhybridsignal.
IT8967974A0 (it) Sistema di montaggio e di collegamento di schede di circuiti elettronici, in particolare per l'impiego a bordo di autoveicoli
MX167280B (es) Sistema y metodo para la identificacion de la fase de los conductores en un circuito electrico
DE69626750D1 (de) Verfahren zur Synchronisierung elektronischer Karten, Abfragestation und elektronische Karte zur Durchführung des Verfahrens
FR2623311B1 (fr) Systeme d'identification a interrogation sans contact d'une etiquette electronique
ATE116481T1 (de) Symmetrische hybridantenne mit kleinem querschnitt.
DE3684860D1 (de) Resonanzetikett zur verwendung in elektronischen radiofrequenten warenueberwachungssystemen.
DE3362798D1 (en) Transmission system for soil examination
EP0257624A3 (en) Marking tape with wire conductors and method for use
ATE58438T1 (de) Elektronischer apparat mit schaltkarten und signalen optisch dazwischen gekoppelt.
EP0352924A3 (en) Inductive device
ATE112636T1 (de) Antennensystem für magnet- und resonanzdetektorschaltungen.