DE69014521D1 - Verfahren und vorrichtung mit permanentmagneten zum markieren, orten, verfolgen und identifizieren von verborgenen objekten wie vergrabenen lichtwellenleitern. - Google Patents

Verfahren und vorrichtung mit permanentmagneten zum markieren, orten, verfolgen und identifizieren von verborgenen objekten wie vergrabenen lichtwellenleitern.

Info

Publication number
DE69014521D1
DE69014521D1 DE69014521T DE69014521T DE69014521D1 DE 69014521 D1 DE69014521 D1 DE 69014521D1 DE 69014521 T DE69014521 T DE 69014521T DE 69014521 T DE69014521 T DE 69014521T DE 69014521 D1 DE69014521 D1 DE 69014521D1
Authority
DE
Germany
Prior art keywords
objects
distance
magnetic field
permanent magnets
elongated
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 - Fee Related
Application number
DE69014521T
Other languages
English (en)
Other versions
DE69014521T2 (de
Inventor
John Rippingale
Charles Upton
Erik Schonstedt
Bradley Osman
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.)
Schonstedt Instrument Co LLC
Original Assignee
Schonstedt Instrument Co LLC
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 Schonstedt Instrument Co LLC filed Critical Schonstedt Instrument Co LLC
Publication of DE69014521D1 publication Critical patent/DE69014521D1/de
Application granted granted Critical
Publication of DE69014521T2 publication Critical patent/DE69014521T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/562—Processes for repairing optical cables locatable, e.g. using magnetic means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Optics & Photonics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Light Guides In General And Applications Therefor (AREA)
DE69014521T 1989-03-15 1990-02-07 Verfahren und vorrichtung mit permanentmagneten zum markieren, orten, verfolgen und identifizieren von verborgenen objekten wie vergrabenen lichtwellenleitern. Expired - Fee Related DE69014521T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32386089A 1989-03-15 1989-03-15
US07/428,757 US5006806A (en) 1989-03-15 1989-10-30 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
PCT/US1990/000748 WO1990010879A1 (en) 1989-03-15 1990-02-07 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables

Publications (2)

Publication Number Publication Date
DE69014521D1 true DE69014521D1 (de) 1995-01-12
DE69014521T2 DE69014521T2 (de) 1995-06-22

Family

ID=26984176

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69014521T Expired - Fee Related DE69014521T2 (de) 1989-03-15 1990-02-07 Verfahren und vorrichtung mit permanentmagneten zum markieren, orten, verfolgen und identifizieren von verborgenen objekten wie vergrabenen lichtwellenleitern.

Country Status (16)

Country Link
US (1) US5006806A (de)
EP (1) EP0419637B1 (de)
JP (1) JP2690192B2 (de)
KR (1) KR930007321B1 (de)
AT (1) ATE114825T1 (de)
AU (1) AU624238B2 (de)
BR (1) BR9005773A (de)
CA (1) CA2028152C (de)
DD (1) DD300464A5 (de)
DE (1) DE69014521T2 (de)
ES (1) ES2024748A6 (de)
HU (1) HU210084B (de)
MX (1) MX172046B (de)
NZ (1) NZ232486A (de)
RU (1) RU2073889C1 (de)
WO (1) WO1990010879A1 (de)

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Also Published As

Publication number Publication date
KR920700407A (ko) 1992-02-19
US5006806A (en) 1991-04-09
KR930007321B1 (ko) 1993-08-05
EP0419637A4 (en) 1992-12-02
CA2028152C (en) 1996-01-30
HUT57911A (en) 1991-12-30
HU210084B (en) 1995-02-28
NZ232486A (en) 1993-04-28
MX172046B (es) 1993-11-30
AU624238B2 (en) 1992-06-04
ATE114825T1 (de) 1994-12-15
DE69014521T2 (de) 1995-06-22
HU903558D0 (en) 1991-11-28
EP0419637B1 (de) 1994-11-30
JP2690192B2 (ja) 1997-12-10
EP0419637A1 (de) 1991-04-03
RU2073889C1 (ru) 1997-02-20
AU5434490A (en) 1990-10-09
WO1990010879A1 (en) 1990-09-20
DD300464A5 (de) 1992-06-11
ES2024748A6 (es) 1992-03-01
JPH03504646A (ja) 1991-10-09
BR9005773A (pt) 1991-08-06
CA2028152A1 (en) 1990-09-16

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