WO2002082034A3 - Method and device for detecting the location of faults in insulated conduit systems - Google Patents

Method and device for detecting the location of faults in insulated conduit systems Download PDF

Info

Publication number
WO2002082034A3
WO2002082034A3 PCT/EP2002/002797 EP0202797W WO02082034A3 WO 2002082034 A3 WO2002082034 A3 WO 2002082034A3 EP 0202797 W EP0202797 W EP 0202797W WO 02082034 A3 WO02082034 A3 WO 02082034A3
Authority
WO
WIPO (PCT)
Prior art keywords
conduit system
faults
location
detecting
wire
Prior art date
Application number
PCT/EP2002/002797
Other languages
German (de)
French (fr)
Other versions
WO2002082034A2 (en
Inventor
Rainer Becker
Christoph Rodner
Ifrit Kiselmann
Michael Disque
Wolfgang Herz
Frieder Neumann
Reiner Primke-Engel
Peter Schoenherr
Ernst-Hermann Wolf
Original Assignee
Fraunhofer Ges Forschung
Prokoning Gmbh
Rainer Becker
Christoph Rodner
Ifrit Kiselmann
Michael Disque
Wolfgang Herz
Frieder Neumann
Reiner Primke-Engel
Peter Schoenherr
Ernst-Hermann Wolf
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 Fraunhofer Ges Forschung, Prokoning Gmbh, Rainer Becker, Christoph Rodner, Ifrit Kiselmann, Michael Disque, Wolfgang Herz, Frieder Neumann, Reiner Primke-Engel, Peter Schoenherr, Ernst-Hermann Wolf filed Critical Fraunhofer Ges Forschung
Priority to EP02727410A priority Critical patent/EP1386132A2/en
Publication of WO2002082034A2 publication Critical patent/WO2002082034A2/en
Publication of WO2002082034A3 publication Critical patent/WO2002082034A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes

Abstract

The invention relates to a method for detecting the location of faults in a conduit system that is provided with a jacket, at least one wire that runs in a longitudinal direction in relation to the conduit system being located in said jacket at a distance from the conduit system. The invention is characterised in that an alternating current is supplied to the conduit system and the wire or the two or more wires which run at a distance from one another, that the magnetic field generated by the alternating current through the conduit system, or by the wire or wires is detected in a locally resolved manner along the conduit system and that a magnetic field evaluation is carried out based on the detected magnetic field, said evaluation being used to detect the location of faults.
PCT/EP2002/002797 2001-04-06 2002-03-13 Method and device for detecting the location of faults in insulated conduit systems WO2002082034A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02727410A EP1386132A2 (en) 2001-04-06 2002-03-13 Method and device for detecting the location of faults in insulated conduit systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001117238 DE10117238A1 (en) 2001-04-06 2001-04-06 Method and device for the detection of defects in isolated line systems
DE10117238.9 2001-04-06

Publications (2)

Publication Number Publication Date
WO2002082034A2 WO2002082034A2 (en) 2002-10-17
WO2002082034A3 true WO2002082034A3 (en) 2003-11-27

Family

ID=7680667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002797 WO2002082034A2 (en) 2001-04-06 2002-03-13 Method and device for detecting the location of faults in insulated conduit systems

Country Status (3)

Country Link
EP (1) EP1386132A2 (en)
DE (1) DE10117238A1 (en)
WO (1) WO2002082034A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025494A1 (en) * 2007-06-01 2008-12-04 Schilli, Bernd, Dipl.-Ing. (FH) Powerful electric cable tracer for locating tracing cables and pipes, and depth measurements, has simple converter or transformer based on low voltage halogen illumination technique
TWI546520B (en) 2015-03-30 2016-08-21 大同股份有限公司 Fluid detection apparatus and fluid detection method
DE102020003135A1 (en) 2020-05-26 2021-12-02 Curt Reichert Sensor device for monitoring the function of a pipeline

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159784A (en) * 1959-12-16 1964-12-01 Kelvin & Hughes Ltd Eddy current testing apparatus having means to relate electrical characteristics of a pickup unit to physical properties of a speciment
US3911389A (en) * 1974-03-21 1975-10-07 Us Transport Magnetic gradient vehicle detector
US4372398A (en) * 1980-11-04 1983-02-08 Cornell Research Foundation, Inc. Method of determining the location of a deep-well casing by magnetic field sensing
US4502010A (en) * 1980-03-17 1985-02-26 Gearhart Industries, Inc. Apparatus including a magnetometer having a pair of U-shaped cores for extended lateral range electrical conductivity logging
US4797621A (en) * 1987-07-08 1989-01-10 Midwesco, Inc. Leak detector and locator utilizing time domain reflectometry and sampling techniques
US4982163A (en) * 1986-08-27 1991-01-01 Aerius Oy Method and a device for the determination of the condition of the insulation of an object coated with an electric insulation
US5136248A (en) * 1990-01-29 1992-08-04 Niagara Mohawk Power Corporation Method and detector for identifying insulator flashover
EP0615140A2 (en) * 1993-03-10 1994-09-14 Ruhrgas Aktiengesellschaft Method and apparatus for locating a line
US6127827A (en) * 1994-07-22 2000-10-03 Radiodetection Limited Method of identifying a buried cable by applying a low frequency signal to the cable and detecting the resultant field
US6229313B1 (en) * 1999-05-27 2001-05-08 Scintrex Limited Mapping of pipeline grounding points by airborne or ground magnetic measurements of current flow in the pipeline

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623588A1 (en) * 1986-07-12 1988-01-14 Eugen Strehle Device for locating embedded electrical wires
DE4104216A1 (en) * 1991-02-12 1992-08-13 Bernd Brandes LINE PIPE FOR TRANSPORTING A MEDIUM
DE19521018C2 (en) * 1995-06-12 1997-04-17 Bernd Brandes Pipe system, in particular for the transmission of district heating
DE19625586C1 (en) * 1996-06-27 1997-07-10 Roetter Industrieelektronik Gm Pipe monitoring circuit for heat energy transport medium to domestic users
DE19801827C2 (en) * 1997-01-15 2001-07-26 Willy Schoenfelder Procedure for locating lines
DE19805263C2 (en) * 1998-02-10 2001-02-08 Brandes Gmbh Process for the detection and location of leaks in rooms, containers and / or piping systems

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159784A (en) * 1959-12-16 1964-12-01 Kelvin & Hughes Ltd Eddy current testing apparatus having means to relate electrical characteristics of a pickup unit to physical properties of a speciment
US3911389A (en) * 1974-03-21 1975-10-07 Us Transport Magnetic gradient vehicle detector
US4502010A (en) * 1980-03-17 1985-02-26 Gearhart Industries, Inc. Apparatus including a magnetometer having a pair of U-shaped cores for extended lateral range electrical conductivity logging
US4372398A (en) * 1980-11-04 1983-02-08 Cornell Research Foundation, Inc. Method of determining the location of a deep-well casing by magnetic field sensing
US4982163A (en) * 1986-08-27 1991-01-01 Aerius Oy Method and a device for the determination of the condition of the insulation of an object coated with an electric insulation
US4797621A (en) * 1987-07-08 1989-01-10 Midwesco, Inc. Leak detector and locator utilizing time domain reflectometry and sampling techniques
US5136248A (en) * 1990-01-29 1992-08-04 Niagara Mohawk Power Corporation Method and detector for identifying insulator flashover
EP0615140A2 (en) * 1993-03-10 1994-09-14 Ruhrgas Aktiengesellschaft Method and apparatus for locating a line
US6127827A (en) * 1994-07-22 2000-10-03 Radiodetection Limited Method of identifying a buried cable by applying a low frequency signal to the cable and detecting the resultant field
US6229313B1 (en) * 1999-05-27 2001-05-08 Scintrex Limited Mapping of pipeline grounding points by airborne or ground magnetic measurements of current flow in the pipeline

Also Published As

Publication number Publication date
DE10117238A1 (en) 2002-10-17
EP1386132A2 (en) 2004-02-04
WO2002082034A2 (en) 2002-10-17

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