FR2481459A1 - Dispositif de detection de conducteurs dissimules transportant du courant, tels que cables ou conduites enterres, destine au perfectionnement des instruments de relevement - Google Patents
Dispositif de detection de conducteurs dissimules transportant du courant, tels que cables ou conduites enterres, destine au perfectionnement des instruments de relevement Download PDFInfo
- Publication number
- FR2481459A1 FR2481459A1 FR8108576A FR8108576A FR2481459A1 FR 2481459 A1 FR2481459 A1 FR 2481459A1 FR 8108576 A FR8108576 A FR 8108576A FR 8108576 A FR8108576 A FR 8108576A FR 2481459 A1 FR2481459 A1 FR 2481459A1
- Authority
- FR
- France
- Prior art keywords
- signals
- coils
- signal
- cables
- coil
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 title abstract description 9
- 230000006872 improvement Effects 0.000 title description 2
- 238000011084 recovery Methods 0.000 title 1
- 238000001514 detection method Methods 0.000 abstract description 6
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 abstract 1
- 239000007990 PIPES buffer Substances 0.000 abstract 1
- 230000005670 electromagnetic radiation Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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
- G01V3/02—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)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8014094 | 1980-04-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2481459A1 true FR2481459A1 (fr) | 1981-10-30 |
| FR2481459B1 FR2481459B1 (enExample) | 1984-11-02 |
Family
ID=10513072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8108576A Granted FR2481459A1 (fr) | 1980-04-29 | 1981-04-29 | Dispositif de detection de conducteurs dissimules transportant du courant, tels que cables ou conduites enterres, destine au perfectionnement des instruments de relevement |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4427942A (enExample) |
| JP (1) | JPS57572A (enExample) |
| DE (1) | DE3117021A1 (enExample) |
| FR (1) | FR2481459A1 (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8304330D0 (en) * | 1983-02-16 | 1983-03-23 | Howell M I | Electromagnetic surveying of pipes and cables |
| CA1244083A (en) * | 1985-07-25 | 1988-11-01 | George Gee | Instrument for sensing ferromagnetic bodies |
| DE3714009A1 (de) * | 1987-04-27 | 1988-11-10 | Hauni Werke Koerber & Co Kg | Metalldetektor |
| US4818944A (en) * | 1987-05-06 | 1989-04-04 | Schonstedt Instrument Company | Magnetic locating and tracing system and method using dual-antenna transmitter to distinguish between concealed adjacent objects |
| US5093622A (en) * | 1989-03-17 | 1992-03-03 | Minnesota Mining And Manufacturing Company | Method and apparatus for determining direction to and position of an underground conductor |
| US5065098A (en) * | 1990-06-18 | 1991-11-12 | The Charles Machine Works, Inc. | System for locating concealed underground objects using digital filtering |
| US5194816A (en) * | 1990-10-19 | 1993-03-16 | Westinghouse Electric Corp. | Method and apparatus for locating electrical shorts between concealed conductive objects |
| CA2073266A1 (en) * | 1991-07-09 | 1993-01-10 | Mehmet Rona | Distal targeting system |
| USH1217H (en) | 1992-02-25 | 1993-08-03 | The United States Of America As Represented By The Secretary Of The Navy | Easily tunable detector for covering discontinuities in buried energized antenna ground wipes |
| US5365163A (en) * | 1992-09-29 | 1994-11-15 | Minnesota Mining And Manufacturing Company | Sensor array for circuit tracer |
| US5471143A (en) * | 1993-01-29 | 1995-11-28 | Minnesota Mining And Manufacturing Co. | Apparatus for locating buried conductors using phase-shifted signals |
| US5430379A (en) * | 1993-08-27 | 1995-07-04 | Minnesota Mining And Manufacturing Company | Conductor locator adapter for electronic markers |
| US5670882A (en) * | 1995-09-21 | 1997-09-23 | Magnawand Inc. | Ferrous target identification system with magnetic field polarity and gradient indication |
| US6130539A (en) * | 1998-08-19 | 2000-10-10 | Metrotech Corporation | Automatic gain control for a line locator |
| US6407550B1 (en) * | 1998-08-19 | 2002-06-18 | Metrotech Corporation | Line locator with accurate horizontal displacement detection |
| US6633163B2 (en) * | 1999-04-28 | 2003-10-14 | Radiodetection Limited | Apparatus and method for detecting an underground cable while operating a piece of machinery |
| DE19925760C2 (de) * | 1999-06-05 | 2003-02-20 | Hagenuk Kmt Kabelmestechnik Gm | Vorrichtung zur Bestimmung einer Einfallsrichtung von elektromagnetischen Wellen |
| GB0013620D0 (en) * | 2000-06-06 | 2000-07-26 | Howell Mark I | A technique for finding the position and depth of any buried pipeline or cable accurately, even where it may be lying close to other long buried conductors |
| US6529006B1 (en) | 2001-10-31 | 2003-03-04 | Paul Hayes | Method and apparatus for resolving the position and identity of buried conductive bodies |
| US6977508B2 (en) * | 2003-03-31 | 2005-12-20 | Radiodetection Limited | Cable detection apparatus and method |
| US7671576B2 (en) * | 2008-03-06 | 2010-03-02 | Zircon Corporation | Ratiometric AC wire tracer |
| US9568529B2 (en) | 2014-10-03 | 2017-02-14 | Ipeg Corporation | Dual orientation buried asset locator device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617865A (en) * | 1968-05-25 | 1971-11-02 | Goroku Hakata | Method and apparatus for locating a buried metallic line employing magnetic field gradient measurements |
| US3893025A (en) * | 1974-02-01 | 1975-07-01 | Plosser George G | Apparatus for determining the distance to a concealed conductive structure |
| GB2004069A (en) * | 1977-08-20 | 1979-03-21 | Plessey Co Ltd | Improvements in or relating to metal detectors |
| GB2006438A (en) * | 1977-08-02 | 1979-05-02 | Electricity Council | Apparatus for Locating Electric Conductors |
| GB2041531A (en) * | 1979-01-29 | 1980-09-10 | British Gas Corp | Detecting inaccessible objects |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3471772A (en) | 1967-05-02 | 1969-10-07 | Singer Inc H R B | Instrument for measuring the range and approximate size of buried or hidden metal objects |
| JPS5070054A (enExample) * | 1973-10-24 | 1975-06-11 | ||
| FR2353068A1 (fr) | 1976-05-24 | 1977-12-23 | Intersub Dev Sa | Appareil de reperage d'un objet metallique allonge |
| US4220913A (en) | 1978-05-23 | 1980-09-02 | Electrolocation Limited | Apparatus for and methods of electromagnetic surveying of elongated underground conductors |
-
1981
- 1981-04-21 US US06/256,232 patent/US4427942A/en not_active Expired - Lifetime
- 1981-04-28 JP JP6508981A patent/JPS57572A/ja active Pending
- 1981-04-29 FR FR8108576A patent/FR2481459A1/fr active Granted
- 1981-04-29 DE DE19813117021 patent/DE3117021A1/de active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617865A (en) * | 1968-05-25 | 1971-11-02 | Goroku Hakata | Method and apparatus for locating a buried metallic line employing magnetic field gradient measurements |
| US3893025A (en) * | 1974-02-01 | 1975-07-01 | Plosser George G | Apparatus for determining the distance to a concealed conductive structure |
| GB2006438A (en) * | 1977-08-02 | 1979-05-02 | Electricity Council | Apparatus for Locating Electric Conductors |
| GB2004069A (en) * | 1977-08-20 | 1979-03-21 | Plessey Co Ltd | Improvements in or relating to metal detectors |
| GB2041531A (en) * | 1979-01-29 | 1980-09-10 | British Gas Corp | Detecting inaccessible objects |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3117021A1 (de) | 1982-02-18 |
| JPS57572A (en) | 1982-01-05 |
| US4427942A (en) | 1984-01-24 |
| DE3117021C2 (enExample) | 1987-11-12 |
| FR2481459B1 (enExample) | 1984-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2481459A1 (fr) | Dispositif de detection de conducteurs dissimules transportant du courant, tels que cables ou conduites enterres, destine au perfectionnement des instruments de relevement | |
| EP2607909B1 (fr) | Pince de terre pour mesurer la résistance de terre d'installations électriques | |
| EP0207922B1 (fr) | Procédé et dispositif de surveillance de balises lumineuses | |
| US3835371A (en) | Apparatus for detecting the presence of electrically conductive material within a given sensing area | |
| CA1037153A (fr) | Methode et appareil de reconnaissance geophysique dans les forages par ondes tres basses frequences | |
| KR860008522A (ko) | 차량과의 통신이 가능한 차량검지 방법 및 장치 | |
| EP0570289B1 (fr) | Dispositif de détection du passage d'un mobile, à répondeur passif | |
| FR2471823A1 (fr) | Procede et dispositif de regulation de la hauteur du niveau de coulee dans les coquilles de coulee continue | |
| EP1030183A1 (fr) | Capteur de courant | |
| FR2500636A1 (fr) | Procede et appareil destines a indiquer la direction d'une source de flux magnetique alternatif | |
| FR2491283A1 (fr) | Transformateurs a circuit imprime | |
| GB2075199A (en) | Detection system for concealed current carrying conductors | |
| EP0210087B1 (fr) | Procédé de mesure de l'aimantation induite dans un bâtiment naval, et dispositif de mise en oeuvre | |
| EP0492394B1 (fr) | Dispositif de contrÔle non destructif à courants de Foucault, à commutation flux additifs-flux soustractifs | |
| EP0497665A1 (fr) | Procédé et dispositif de réduction des effets des bruits parasites sur la détection d'une cible par un système comprenant une pluralité de capteurs élémentaires | |
| FR2575820A1 (fr) | Procede et dispositif pour mesurer la distance entre une cible et un capteur | |
| JPH04265890A (ja) | 隠れた導体間の空間的関係を突きとめる方法及び装置 | |
| EP0269531B1 (fr) | Dispositif de détection de la nature d'un milieu de viande | |
| EP0210093B1 (fr) | Procédé et dispositif de contrôle de la transmission de signaux de protection différentielle | |
| EP1028326B1 (fr) | Procédé et appareil de détection de gradients de potentiel à la surface du sol | |
| FR2547423A1 (fr) | Procede de controle de la position d'une cible a l'interieur d'une enveloppe a parois epaisses, et appareil correpondant | |
| EP0366522A1 (fr) | Système de dragage magnétique | |
| JPS5858488A (ja) | 地下埋設物探知装置 | |
| FR2461990A1 (fr) | Dispositif electronique de detection d'intrusions dans un environnement | |
| FR2522807A1 (fr) | Capteur de position a magnetoresistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |