SE430545B - Anordning for detektering av metallforemal i ett materialflode - Google Patents

Anordning for detektering av metallforemal i ett materialflode

Info

Publication number
SE430545B
SE430545B SE8202094A SE8202094A SE430545B SE 430545 B SE430545 B SE 430545B SE 8202094 A SE8202094 A SE 8202094A SE 8202094 A SE8202094 A SE 8202094A SE 430545 B SE430545 B SE 430545B
Authority
SE
Sweden
Prior art keywords
frequencies
signal
coil
currents
current
Prior art date
Application number
SE8202094A
Other languages
English (en)
Swedish (sv)
Other versions
SE8202094L (sv
Inventor
B Lenander
L Thegel
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE8202094A priority Critical patent/SE430545B/sv
Priority to DE8383102984T priority patent/DE3377020D1/de
Priority to EP83102984A priority patent/EP0091034B1/fr
Priority to US06/480,281 priority patent/US4563644A/en
Priority to CA000424952A priority patent/CA1224257A/fr
Publication of SE8202094L publication Critical patent/SE8202094L/
Publication of SE430545B publication Critical patent/SE430545B/sv

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric 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
    • G01V3/10Electric 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
    • G01V3/104Electric 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 using several coupled or uncoupled coils
    • G01V3/105Electric 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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107Electric 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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
SE8202094A 1982-04-01 1982-04-01 Anordning for detektering av metallforemal i ett materialflode SE430545B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8202094A SE430545B (sv) 1982-04-01 1982-04-01 Anordning for detektering av metallforemal i ett materialflode
DE8383102984T DE3377020D1 (en) 1982-04-01 1983-03-25 Arrangement for the detection of metallic objects in a flow of material
EP83102984A EP0091034B1 (fr) 1982-04-01 1983-03-25 Arrangement pour la détection d'objets métalliques dans un courant de matériel
US06/480,281 US4563644A (en) 1982-04-01 1983-03-30 Device for detecting metallic objects in a flow of non-metallic material
CA000424952A CA1224257A (fr) 1982-04-01 1983-03-30 Dispositif detecteur de metaux dans un debit de materiau non metallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8202094A SE430545B (sv) 1982-04-01 1982-04-01 Anordning for detektering av metallforemal i ett materialflode

Publications (2)

Publication Number Publication Date
SE8202094L SE8202094L (sv) 1983-10-02
SE430545B true SE430545B (sv) 1983-11-21

Family

ID=20346442

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8202094A SE430545B (sv) 1982-04-01 1982-04-01 Anordning for detektering av metallforemal i ett materialflode

Country Status (5)

Country Link
US (1) US4563644A (fr)
EP (1) EP0091034B1 (fr)
CA (1) CA1224257A (fr)
DE (1) DE3377020D1 (fr)
SE (1) SE430545B (fr)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8302738L (sv) * 1983-05-16 1984-11-17 Bengt Hjalmar Tornblom Anordning och/eller sett baserad pa frekvensvalsprincip
EP0211905B1 (fr) * 1985-02-15 1990-10-03 The Broken Hill Proprietary Company Limited Classification de l'acier
ZA87810B (en) * 1986-02-04 1987-09-30 Minelab Electronic Ltd Discriminatory detection of conducting particles
US4742339A (en) * 1986-09-10 1988-05-03 Nelson Baziuk Cutlery detector and alarm
DE3713363A1 (de) * 1987-04-21 1988-11-10 Friedrich Prof Dr Foerster Suchgeraet zum suchen von metallteilen
FI84208C (fi) * 1989-01-31 1991-10-25 Outokumpu Oy Foerfarande foer detektering av metallfoeremaol.
US5001424A (en) * 1989-02-03 1991-03-19 Product Resources, Inc. Apparatus for measuring magnetic particles suspended in a fluid based on fluctuations in an induced voltage
WO1991004502A1 (fr) * 1989-09-12 1991-04-04 Bayliss Electronic Industries Pty. Ltd. Detecteur de valeur minerale a champ induit
US5432444A (en) * 1990-10-23 1995-07-11 Kaisei Engineer Co., Ltd. Inspection device having coaxial induction and exciting coils forming a unitary coil unit
US5237271A (en) * 1991-05-06 1993-08-17 General Electric Company Apparatus and method for non-destructive testing using multi-frequency eddy currents
EP0543648A1 (fr) * 1991-11-21 1993-05-26 Kaisei Engineer Co., Ltd. Appareil et méthode pour l'inspection à l'induction électromagnétique
US5444367A (en) * 1992-04-06 1995-08-22 Minister Of National Defence Method and apparatus for detecting particles in a fluid having coils isolated from external vibrations
US5576621A (en) * 1994-03-10 1996-11-19 Denver Dynamics, Inc. Hinged metal detection cover for a receptacle
USD356044S (en) 1994-03-10 1995-03-07 Denver Dynamics, Inc. Metal detector
US5583432A (en) * 1994-04-11 1996-12-10 Sci-Nostics Limited Electrical method and apparatus for non-contact determination of physical and/or chemical properties of a sample, particularly of blood
US5604441A (en) * 1995-03-14 1997-02-18 Detroit Diesel Corporation In-situ oil analyzer and methods of using same, particularly for continuous on-board analysis of diesel engine lubrication systems
US5608316A (en) * 1995-08-21 1997-03-04 Caterpillar Inc. Apparatus for detecting particles in a fluid and a method for operating same
US5608315A (en) * 1995-08-21 1997-03-04 Caterpillar Inc. Apparatus for detecting particles in a fluid and a method for operating same
US5654638A (en) * 1995-12-21 1997-08-05 White's Electronics, Inc. Plural Frequency method and system for identifying metal objects in a background environment
US5642050A (en) * 1995-12-21 1997-06-24 White's Electronics, Inc. Plural frequency method and system for identifying metal objects in a background environment using a target model
DE19648833A1 (de) * 1996-11-26 1998-05-28 Foerster Inst Dr Friedrich Verfahren und Vorrichtung zur Lokalisierung und Identifizierung von im Boden versteckten Suchobjekten, insbesondere Plastikminen
DE19648834A1 (de) * 1996-11-26 1998-05-28 Foerster Inst Dr Friedrich Verfahren zum Betrieb und zur Auswertung von Signalen einer Wirbelstromsonde und Vorrichtung zur Ausübung des Verfahrens
FR2760276B1 (fr) * 1997-02-28 1999-04-23 Pechiney Recherche Dispositif et methode de detection, d'identification et de tri d'emballages metalliques ou comprenant une partie metallique
RU2152058C1 (ru) * 1998-06-24 2000-06-27 Институт геофизики СО РАН Способ индукционного частотного зондирования
DE19838249A1 (de) * 1998-08-22 2000-02-24 M U T Gmbh Anwendung von magnetoresistiven Sensoren zum Sortieren von Partikeln
RU2158940C2 (ru) * 1998-11-27 2000-11-10 Институт геофизики Уральского отделения РАН Устройство для геоэлектроразведки
RU2170445C2 (ru) * 1999-06-15 2001-07-10 Курский государственный технический университет Металлообнаружитель
RU2190866C2 (ru) * 2000-06-05 2002-10-10 Самарский государственный аэрокосмический университет им. С.П.Королева Металлообнаружитель
RU2244944C2 (ru) * 2002-10-01 2005-01-20 ЗАО НПФ "Геофизическое дистанционное зондирование" Способ идентификации подповерхностных структур и локальных объектов в них
US7652477B2 (en) * 2003-11-12 2010-01-26 Minelab Electronics Pty Ltd Multi-frequency metal detector having constant reactive transmit voltage applied to a transmit coil
US7674994B1 (en) 2004-10-21 2010-03-09 Valerio Thomas A Method and apparatus for sorting metal
US7659486B2 (en) * 2005-10-20 2010-02-09 Valerio Thomas A Method and apparatus for sorting contaminated glass
MX2008005448A (es) * 2005-10-24 2008-11-06 Thomas A Valerio Proceso, sistema y aparato de clasificacion de materiales disimilares.
DE102006005956A1 (de) * 2006-02-02 2007-08-16 Hydac Filtertechnik Gmbh Vorrichtung zum Detektieren von Partikeln in einem Fluidstrom, insbesondere induktiver Partikelzähler, sowie zugehöriges System zum Kühlen und/oder Schmieren von Komponenten einer Antriebseinheit
CA2647700C (fr) * 2006-03-31 2012-12-11 Thomas Valerio Procede et dispositif de tri de metaux non ferreux fins et d'elements de fils metallique isoles
DE102007039435A1 (de) * 2006-12-15 2008-06-19 Prüftechnik Dieter Busch AG Vorrichtung und Verfahren zum Erfassen von Partikeln in einer strömenden Flüssigkeit
WO2008085945A1 (fr) * 2007-01-05 2008-07-17 Valerio Thomas A Système et procédé pour trier des matériaux différents
MX2009011169A (es) * 2007-04-18 2009-11-02 Thomas A Valerio Metodo y sistema para clasificacion y procesamiento de materiales reciclados.
KR20090017013A (ko) * 2007-08-13 2009-02-18 삼성전자주식회사 자기장을 이용한 미세 입자 및 미생물 검출 장치 및 그방법
US7732726B2 (en) * 2008-04-03 2010-06-08 Valerio Thomas A System and method for sorting dissimilar materials using a dynamic sensor
WO2009152290A1 (fr) 2008-06-11 2009-12-17 Valerio Thomas A Procédé et système de récupération de métal à partir de matériaux recyclés traités
AU2009274103A1 (en) * 2008-07-21 2010-01-28 Mtd America Ltd (Llc) Method and system for removing polychlorinated biphenyls from plastics
CA2760313A1 (fr) * 2009-04-28 2010-11-04 Mtd America Ltd (Llc) Appareil et procede de separation de materiaux au moyen d'air
EP2456574A1 (fr) * 2009-07-21 2012-05-30 Thomas A. Velerio Procédé et système pour séparer et récupérer des matériaux de type analogue à partir d'un système de déchets électroniques
US8360347B2 (en) * 2009-07-31 2013-01-29 Thomas A. Valerio Method and system for separating and recovering wire and other metal from processed recycled materials
US8757523B2 (en) * 2009-07-31 2014-06-24 Thomas Valerio Method and system for separating and recovering wire and other metal from processed recycled materials
EP2383056B1 (fr) * 2010-04-28 2016-11-30 Nemak Dillingen GmbH Procédé et appareil pour dispositif de détection de métaux sans contact
US8587301B2 (en) 2010-10-07 2013-11-19 Mettler-Toledo Safeline Limited Method for operating a metal detection system and metal detection system
EP2439560B1 (fr) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Procédé de fonctionnement d'un système de détection de métaux et système de détection de métaux
EP2439559B1 (fr) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Procédé de fonctionnement d'un système de détection de métaux et système de détection de métaux
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus
US20140002069A1 (en) * 2012-06-27 2014-01-02 Kenneth Stoddard Eddy current probe
GB2528474A (en) * 2014-07-23 2016-01-27 Bombardier Transp Gmbh Operation of an inductive power transfer system
US10295499B2 (en) 2017-02-16 2019-05-21 Spectro Scientific, Inc. Ferrous metals measuring magnetometer system and method
EP3600702B1 (fr) 2017-03-28 2023-10-18 Huron Valley Steel Corporation Système et procédé de tri de déchets
US10898928B2 (en) 2018-03-27 2021-01-26 Huron Valley Steel Corporation Vision and analog sensing scrap sorting system and method
DE102023136519A1 (de) * 2023-12-22 2025-06-26 Endress+Hauser Flowtec Ag Messaufnehmer für Metalldetektor, Verfahren zum Detektieren von verborgenen elektrisch leitfähigen Gegenständen mit einem Messaufnehmer für Metalldetektor, und Verfahren zur Herstellung eines Messaufnehmers für einen Metalldetektor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1548159B2 (de) * 1966-08-24 1971-04-01 Elektronik Apparatebau GmbH, 8105 Farchant Elektrische schaltanordnung zum auffinden und anzeigen metallischer fremdkoerper in foerderstroemen
US3686564A (en) * 1970-10-08 1972-08-22 Westinghouse Electric Corp Multiple frequency magnetic field technique for differentiating between classes of metal objects
US3848182A (en) * 1973-08-15 1974-11-12 Magnetic Analysis Corp Apparatus for limiting phase-angle response range, particularly in eddy current testing apparatus
US4006407A (en) * 1975-03-10 1977-02-01 Magnaflux Corporation Non-destructive testing systems having automatic balance and sample and hold operational modes
US4263551A (en) * 1975-10-16 1981-04-21 Georgetown University Method and apparatus for identifying conductive objects by monitoring the true resistive component of impedance change in a coil system caused by the object
US4128803A (en) * 1977-04-29 1978-12-05 Pni, Inc. Metal detector system with ground effect rejection
US4118662A (en) * 1977-06-24 1978-10-03 Harold James Weber Apparatus including bifrequency electromagnetic wave generation means for sympathetic excitation of detached conductive structures
GB2004069B (en) * 1977-08-20 1982-04-21 Plessey Co Ltd Metal detectors
US4237419A (en) * 1978-06-07 1980-12-02 Tornbloms Kvalitetskontroll Ab Method and apparatus for non-destructive testing using a plurality of frequencies
DE2825958C2 (de) * 1978-06-14 1986-02-20 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung
JPS5836755B2 (ja) * 1978-11-13 1983-08-11 電測工業株式会社 混入金属の検出方法
US4303885A (en) * 1979-06-18 1981-12-01 Electric Power Research Institute, Inc. Digitally controlled multifrequency eddy current test apparatus and method
US4424486A (en) * 1980-10-14 1984-01-03 Zetec, Inc. Phase rotation circuit for an eddy current tester

Also Published As

Publication number Publication date
EP0091034B1 (fr) 1988-06-08
US4563644A (en) 1986-01-07
SE8202094L (sv) 1983-10-02
CA1224257A (fr) 1987-07-14
EP0091034A2 (fr) 1983-10-12
EP0091034A3 (en) 1984-09-05
DE3377020D1 (en) 1988-07-14

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