ES2004800A6 - Metodo y aparato para detectar objetos metalicos - Google Patents

Metodo y aparato para detectar objetos metalicos

Info

Publication number
ES2004800A6
ES2004800A6 ES8702371A ES8702371A ES2004800A6 ES 2004800 A6 ES2004800 A6 ES 2004800A6 ES 8702371 A ES8702371 A ES 8702371A ES 8702371 A ES8702371 A ES 8702371A ES 2004800 A6 ES2004800 A6 ES 2004800A6
Authority
ES
Spain
Prior art keywords
eddy current
metal objects
current type
type detector
detecting metal
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
Application number
ES8702371A
Other languages
English (en)
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.)
Outokumpu Oyj
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Publication of ES2004800A6 publication Critical patent/ES2004800A6/es
Expired legal-status Critical Current

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
    • G01V3/104—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 using several coupled or uncoupled coils

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

METODO Y APARATO PARA DETECTAR OBJETOS METALICOS. LA INVENCION SE REFIERE A UN METODO Y APARATO PARA DETECTAR OBJETOS METALICOS EN UN APARATO DETECTOR DE METALES UTILIZANDO TECNICAS DE IMPULSOR. EL DETECTOR DE METALES COMPRENDE UN CIRCUITO DE COMPENSACION DISPUESTO ENTRE EL SISTEMA TRANSMISOR (13) Y EL SISTEMA RECEPTOR (14) PARA COMPENSAR LA INDUCTANCIA RECIPROCA ENTRE EL TRANSMISOR (11) Y EL RECEPTOR (12). EL CIRCUITO DE COMPENSACION ES VENTAJOSAMENTE ACCIONADO PARA QUE LA SEÑAL PRODUCIDA POR EL OBJETO METALICO EN ESTE DETECTOR PUEDA MEDIRSE DURANTE POR LO MENOS DOS SECUENCIAS DE MEDICION (21,22) SITUADAS DENTRO DE LA GAMA DEL PICO DE DESCONEXION DE LA CORRIENTE DEL TRANSMISOR Y DURANTE, POR LO MENOS, UNA SECUENCIA DE MEDICION (23) SITUADA FUERA DE LA GAMA DEL PICO DE DESCONEXION DE LA CORRIENTE DEL TRANSMISOR.
ES8702371A 1986-08-15 1987-08-11 Metodo y aparato para detectar objetos metalicos Expired ES2004800A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI863309A FI79618C (fi) 1986-08-15 1986-08-15 Saett och anordning foer detektering av metallkroppar.

Publications (1)

Publication Number Publication Date
ES2004800A6 true ES2004800A6 (es) 1989-02-01

Family

ID=8523005

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8702371A Expired ES2004800A6 (es) 1986-08-15 1987-08-11 Metodo y aparato para detectar objetos metalicos

Country Status (10)

Country Link
US (1) US4894619A (es)
JP (1) JPS6348493A (es)
CA (1) CA1279387C (es)
DE (1) DE3727416A1 (es)
ES (1) ES2004800A6 (es)
FI (1) FI79618C (es)
FR (1) FR2602876B1 (es)
GB (1) GB2194055B (es)
IT (1) IT1222389B (es)
SE (1) SE507041C2 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI84208C (fi) * 1989-01-31 1991-10-25 Outokumpu Oy Foerfarande foer detektering av metallfoeremaol.
DK42491D0 (da) * 1991-03-11 1991-03-11 Kristen Nielsen Apparat og fremgangsmaade til detektering af nedgravede roer og kabler
US5249612A (en) * 1992-07-24 1993-10-05 Bti, Inc. Apparatus and methods for controlling fluid dispensing
DE4417931C1 (de) * 1994-05-19 1995-08-17 Inst Umwelttechnologien Gmbh Schaltungsanordnung zur Wahrnehmung und Ortung von Metallgegenständen
US5552705A (en) * 1995-06-01 1996-09-03 Keller; George V. Non-obtrusive weapon detection system and method for discriminating between a concealed weapon and other metal objects
US6469624B1 (en) * 2000-01-03 2002-10-22 3-J Tech., Ltd. Non-obtrusive weapon detection system
US20050079132A1 (en) * 2003-04-08 2005-04-14 Xingwu Wang Medical device with low magnetic susceptibility
US20070010702A1 (en) * 2003-04-08 2007-01-11 Xingwu Wang Medical device with low magnetic susceptibility
CN101688925B (zh) 2007-01-15 2012-12-26 拉皮斯坎系统股份有限公司 检测器系统
US7796733B2 (en) * 2007-02-01 2010-09-14 Rapiscan Systems, Inc. Personnel security screening system with enhanced privacy
US8576982B2 (en) 2008-02-01 2013-11-05 Rapiscan Systems, Inc. Personnel screening system
US8638904B2 (en) 2010-03-14 2014-01-28 Rapiscan Systems, Inc. Personnel screening system
US8995619B2 (en) 2010-03-14 2015-03-31 Rapiscan Systems, Inc. Personnel screening system
CN101779119B (zh) * 2007-06-21 2012-08-29 瑞皮斯坎系统股份有限公司 用于提高受指引的人员筛查的系统和方法
US20110198937A1 (en) * 2010-02-15 2011-08-18 Qualcomm Incorporated Impedance neutral wireless power receivers
EP2548207B1 (en) 2010-03-14 2020-02-12 Rapiscan Systems, Inc. Beam forming apparatus
US9829598B2 (en) 2013-12-12 2017-11-28 Minelab Electronics Pty Limited Metal detector
MX361149B (es) 2014-03-07 2018-11-28 Rapiscan Systems Inc Detectores de banda ultra ancha.
US11280898B2 (en) 2014-03-07 2022-03-22 Rapiscan Systems, Inc. Radar-based baggage and parcel inspection systems
US9628027B2 (en) * 2014-03-14 2017-04-18 Nxp Usa, Inc. Multi-path devices with mutual inductance compensation networks and methods thereof
CN107251088A (zh) 2014-11-25 2017-10-13 拉皮斯坎系统股份有限公司 智能安全管理系统
US9979356B2 (en) 2014-12-17 2018-05-22 Nxp Usa, Inc. Magnetically coupled load modulation
CN105487126A (zh) * 2016-01-26 2016-04-13 中国原子能科学研究院 一种互感式管道内液态金属监测装置
US10720300B2 (en) 2016-09-30 2020-07-21 American Science And Engineering, Inc. X-ray source for 2D scanning beam imaging
DE102020105732A1 (de) 2020-03-04 2021-09-09 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Kennzeichnung eines Bauteils durch Aufbringen einer auslesbaren Identifizierungsinformation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735980A (en) * 1956-02-21 Microseconds
US3105934A (en) * 1960-01-05 1963-10-01 Selco Exploration Company Ltd Method and apparatus for the remote detection of ore bodies utilizing pulses of short duration to induce transient polarization in the ore bodies
US3210652A (en) * 1961-10-06 1965-10-05 Harold O Seigel Method of geophysical prospecting by comparing the steady state magnetic field measured due to current flow through a medium with the transient magnetic field measured after termination of the current flow
US3395338A (en) * 1965-06-08 1968-07-30 Selco Exploration Co Ltd Prospecting system employing electromagnetic wave forms exhibiting abrupt changes
US3707672A (en) * 1971-06-02 1972-12-26 Westinghouse Electric Corp Weapon detector utilizing the pulsed field technique to detect weapons on the basis of weapons thickness
GB1443925A (en) * 1972-11-21 1976-07-28 Balfour Kilpatrick Ltd Method of and apparatus for locating buries objects
GB1456009A (en) * 1973-06-25 1976-11-17 Central Geophysics Ltd Method for exciting and detecing resonant oscillations from electronic conductors in the earth
US4030026A (en) * 1974-11-25 1977-06-14 White's Electronics, Inc. Sampling metal detector
GB1490191A (en) * 1975-01-16 1977-10-26 Plessey Co Ltd Metal detectors
GB1548239A (en) * 1976-03-29 1979-07-04 White S Electronics Sampling metal detector
JPS5370460A (en) * 1976-12-04 1978-06-22 Omron Tateisi Electronics Co Hot material detector
US4114086A (en) * 1977-03-07 1978-09-12 Scintrex Limited Inductive source method of induced polarization prospecting
GB2004069B (en) * 1977-08-20 1982-04-21 Plessey Co Ltd Metal detectors
GB2041532B (en) * 1979-01-31 1983-05-11 Plessey Co Ltd Metal detector
GB2071327A (en) * 1979-11-29 1981-09-16 Corbyn J A Improvements in Electromagnetic Induction Systems for Geophysical Exploration and Conductor Location
US4600356A (en) * 1984-01-27 1986-07-15 Gas Research Institute Underground pipeline and cable detector and process
GB2173903B (en) * 1985-04-18 1988-07-06 Shell Int Research A method and system for primary field compensation in a towed receiver for airborne electromagnetic survey systems

Also Published As

Publication number Publication date
GB2194055A (en) 1988-02-24
GB2194055B (en) 1991-01-30
IT8721506A0 (it) 1987-07-29
FI79618B (fi) 1989-09-29
FI863309A0 (fi) 1986-08-15
SE8703030D0 (sv) 1987-08-03
FI79618C (fi) 1990-01-10
CA1279387C (en) 1991-01-22
FI863309A (fi) 1988-02-16
SE8703030L (sv) 1988-02-16
IT1222389B (it) 1990-09-05
GB8717731D0 (en) 1987-09-03
DE3727416C2 (es) 1993-04-22
DE3727416A1 (de) 1988-02-18
FR2602876A1 (fr) 1988-02-19
FR2602876B1 (fr) 1990-04-20
SE507041C2 (sv) 1998-03-16
JPS6348493A (ja) 1988-03-01
US4894619A (en) 1990-01-16
JPH0584875B2 (es) 1993-12-03

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20070813