WO2004044620A1 - Ferromagnetic object detector - Google Patents
Ferromagnetic object detector Download PDFInfo
- Publication number
- WO2004044620A1 WO2004044620A1 PCT/GB2003/004779 GB0304779W WO2004044620A1 WO 2004044620 A1 WO2004044620 A1 WO 2004044620A1 GB 0304779 W GB0304779 W GB 0304779W WO 2004044620 A1 WO2004044620 A1 WO 2004044620A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- magnetic
- primary
- sensor means
- ferromagnetic object
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004550783A JP4477503B2 (en) | 2002-11-12 | 2003-11-05 | Ferromagnetic detector |
CA2505543A CA2505543C (en) | 2002-11-12 | 2003-11-05 | Ferromagnetic object detector |
AU2003279455A AU2003279455A1 (en) | 2002-11-12 | 2003-11-05 | Ferromagnetic object detector |
EP03772403.6A EP1563326B1 (en) | 2002-11-12 | 2003-11-05 | Ferromagnetic object detector |
IL168467A IL168467A (en) | 2002-11-12 | 2005-05-08 | Ferromagnetic object detector |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0226334A GB2395276B (en) | 2002-11-12 | 2002-11-12 | Ferromagnetic object detector |
GB0226334.1 | 2002-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004044620A1 true WO2004044620A1 (en) | 2004-05-27 |
Family
ID=9947648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2003/004779 WO2004044620A1 (en) | 2002-11-12 | 2003-11-05 | Ferromagnetic object detector |
Country Status (9)
Country | Link |
---|---|
US (1) | US7113092B2 (en) |
EP (1) | EP1563326B1 (en) |
JP (1) | JP4477503B2 (en) |
AU (1) | AU2003279455A1 (en) |
CA (1) | CA2505543C (en) |
GB (1) | GB2395276B (en) |
IL (1) | IL168467A (en) |
WO (1) | WO2004044620A1 (en) |
ZA (1) | ZA200503561B (en) |
Cited By (11)
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US6956369B2 (en) | 2003-01-17 | 2005-10-18 | Mednovus, Inc. | Screening method and apparatus |
US7106056B2 (en) | 2003-01-17 | 2006-09-12 | Mednovus, Inc. | Security screening method and apparatus |
US7154266B2 (en) | 2003-01-17 | 2006-12-26 | Quantum Magnetics, Inc. | Screening method and apparatus |
US7239134B2 (en) | 2003-01-17 | 2007-07-03 | Mednovus, Inc. | Screening method and apparatus |
US7239223B2 (en) | 2004-10-18 | 2007-07-03 | Mednovus, Inc. | Enhancement magnetizer for magnetic resonance imaging screening |
US7295107B2 (en) | 2004-12-30 | 2007-11-13 | Mednovus, Inc. | Ferromagnetic detection pillar |
WO2010109194A1 (en) | 2009-03-27 | 2010-09-30 | Qinetiq Limited | Apparatus and method for ferromagnetic object detector |
WO2010109195A1 (en) | 2009-03-27 | 2010-09-30 | Qinetiq Limited | Apparatus and method for ferromagnetic object detector |
CN104199024A (en) * | 2014-08-11 | 2014-12-10 | 中国西安卫星测控中心 | Target positioning method based on optical measurement of very short base line |
CN104459803A (en) * | 2013-09-18 | 2015-03-25 | 中国地质大学(北京) | Intelligent long-period natural field source electromagnetic measuring apparatus and application method thereof |
CN105424108A (en) * | 2016-01-04 | 2016-03-23 | 上海肯特仪表股份有限公司 | Magnetic field anomaly detection device of electromagnetic flowmeter sensor |
Families Citing this family (50)
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---|---|---|---|---|
US8148989B2 (en) * | 2002-03-11 | 2012-04-03 | Keith Kopp | Ferromagnetic detection enhancer compatible with magnetic resonance |
US7489128B2 (en) * | 2002-03-11 | 2009-02-10 | Kopp Keith A | MRI protector |
WO2003091753A1 (en) | 2002-04-25 | 2003-11-06 | National Research Council Of Canada | Detection of ferromagnetic objects approaching a magnet |
JP3811454B2 (en) * | 2003-01-29 | 2006-08-23 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Proximity detection device, portable computer, proximity detection method, and program |
US20060022670A1 (en) * | 2004-07-31 | 2006-02-02 | Mednovus, Inc. | Magnetic resonance screening portal with combination sensing |
US20060255938A1 (en) * | 2004-08-09 | 2006-11-16 | Van Den Brink Johan S | Saftey provisions for surgical tools and mri |
US20060139025A1 (en) * | 2004-12-24 | 2006-06-29 | Mednovus, Inc. | Saturation-resistant magnetoresistive sensor for ferromagnetic screening |
US20060145691A1 (en) * | 2004-12-30 | 2006-07-06 | Mednovus, Inc. | Ferromagnetic detection pillar and variable aperture portal |
US7408461B2 (en) * | 2005-01-11 | 2008-08-05 | Controlled Capture Systems, Llc | Metal detection system and method |
US7710452B1 (en) * | 2005-03-16 | 2010-05-04 | Eric Lindberg | Remote video monitoring of non-urban outdoor sites |
US20070057786A1 (en) * | 2005-09-13 | 2007-03-15 | Mednovus, Inc. | Ferromagnetic threat warning system |
ATE537320T1 (en) * | 2005-11-25 | 2011-12-15 | Shanghai One Top Corp | DEVICE FOR CONTROLLING A DOOR |
US7696751B2 (en) * | 2005-12-08 | 2010-04-13 | Koninklijke Philips Electronics N. V. | Method and apparatus for ferrous object and/or magnetic field detection for MRI safety |
DE102006005285A1 (en) * | 2006-02-06 | 2007-08-16 | Siemens Ag | Magnetic resonance device and method for monitoring a magnetic resonance device |
US8049489B2 (en) | 2006-07-26 | 2011-11-01 | Cardiac Pacemakers, Inc. | Systems and methods for sensing external magnetic fields in implantable medical devices |
WO2008034434A1 (en) * | 2006-09-19 | 2008-03-27 | Displaycom Track Technologies Gmbh | Arrangement and method for recognising and classifying preferably hidden objects in object and/or human traffic |
US20080281187A1 (en) * | 2006-10-18 | 2008-11-13 | Mednovus, Inc. | Ferromagnetic threat detection method apparatus |
US20080242944A1 (en) * | 2007-03-30 | 2008-10-02 | General Electric Company | Method and system for facilitating error free scan administration |
US8416076B2 (en) * | 2008-04-02 | 2013-04-09 | The Trustees Of Dartmouth College | Magnetic proximity sensor system and associated methods of sensing a magnetic field |
FR2947334B1 (en) * | 2009-06-26 | 2011-08-26 | Commissariat Energie Atomique | METHOD AND APPARATUS FOR CONVERTING A DISPLACEMENT OF A MAGNETIC OBJECT TO A DIRECTLY PERCEPTIBLE SIGNAL, INSTRUMENT INCORPORATING THIS APPARATUS |
DE102010016028B4 (en) * | 2010-03-19 | 2015-05-21 | Sartorius Industrial Scales Gmbh & Co. Kg | Method for operating a detector using an electromagnetic alternating field and detector |
US10191127B2 (en) | 2012-10-31 | 2019-01-29 | Aspect Imaging Ltd. | Magnetic resonance imaging system including a protective cover and a camera |
US10076266B2 (en) | 2010-07-07 | 2018-09-18 | Aspect Imaging Ltd. | Devices and methods for a neonate incubator, capsule and cart |
US11278461B2 (en) | 2010-07-07 | 2022-03-22 | Aspect Imaging Ltd. | Devices and methods for a neonate incubator, capsule and cart |
GB201013992D0 (en) * | 2010-08-20 | 2010-10-06 | Metrasens Ltd | Apparatus for detecting ferromagnetic objects and a protected doorway assembly |
DE202011051313U1 (en) | 2010-09-16 | 2011-11-23 | Aspect Magnet Technologies Ltd. | Closed life support system for premature babies |
US10794975B2 (en) | 2010-09-16 | 2020-10-06 | Aspect Imaging Ltd. | RF shielding channel in MRI-incubator's closure assembly |
US8901928B2 (en) | 2010-11-09 | 2014-12-02 | Imris Inc. | MRI safety system |
GB201111067D0 (en) | 2011-06-29 | 2011-08-10 | Metrasens Ltd | Apparatus for detecting ferromagnetic objects and screening people and equipment |
US20130307533A1 (en) | 2012-05-18 | 2013-11-21 | Metrasens Limited | Security system and method of detecting contraband items |
GB201219097D0 (en) * | 2012-10-24 | 2012-12-05 | Metrasens Ltd | Apparatus for detecting ferromagnetic objects at a protected doorway assembly |
US9535141B2 (en) * | 2013-03-13 | 2017-01-03 | Aspect Imaging Ltd. | MRI safety device means and methods thereof |
GB201320232D0 (en) * | 2013-11-15 | 2014-01-01 | Metrasens Ltd | Door assembly for an MRI room |
DE202013105212U1 (en) | 2013-11-17 | 2013-12-19 | Aspect Imaging Ltd. | Locking device of an MRI incubator |
US10079999B2 (en) | 2013-11-18 | 2018-09-18 | Koninklijke Philips N.V. | Video surveillance for MRI safety monintoring |
ZA201500063B (en) * | 2014-01-13 | 2015-12-23 | Tata Consultancy Services Ltd | A detection system |
US9651701B2 (en) * | 2014-11-06 | 2017-05-16 | Kopp Development, Inc. | Ferromagnetic incident detecting and logging arrangement |
GB2549895A (en) | 2014-12-18 | 2017-11-01 | Metrasens Ltd | Security system and method of detecting contraband items |
US10816617B2 (en) * | 2015-03-09 | 2020-10-27 | Koninklijke Philips N.V. | Method and safety module for an automatic or semi-automatic detection whether an MR examination of a person is approved with a predetermined MR system |
US10488473B2 (en) | 2015-06-26 | 2019-11-26 | Koninklijke Philips N.V. | Method and detecting unit for detecting metal implants and selecting magnetic resonance pulse sequences for efficient MRI workflow |
GB201602652D0 (en) | 2016-02-15 | 2016-03-30 | Metrasens Ltd | Improvements to magnetic detectors |
US10224135B2 (en) | 2016-08-08 | 2019-03-05 | Aspect Imaging Ltd. | Device, system and method for obtaining a magnetic measurement with permanent magnets |
US11287497B2 (en) | 2016-08-08 | 2022-03-29 | Aspect Imaging Ltd. | Device, system and method for obtaining a magnetic measurement with permanent magnets |
US11399732B2 (en) | 2016-09-12 | 2022-08-02 | Aspect Imaging Ltd. | RF coil assembly with a head opening and isolation channel |
GB2556926A (en) * | 2016-11-25 | 2018-06-13 | Metrasens Ltd | Monitoring system for a detection system |
EP3748383A1 (en) | 2019-06-04 | 2020-12-09 | Koninklijke Philips N.V. | Sensor system for increasing security in mr environments |
GB201911009D0 (en) * | 2019-08-01 | 2019-09-18 | Matrasens Ltd | Ferrmagnetic Sensing |
US11396035B2 (en) * | 2019-11-25 | 2022-07-26 | Resonance Technology, Inc. | MRI magnet room cleaning system |
JP7455007B2 (en) * | 2020-06-22 | 2024-03-25 | キヤノンメディカルシステムズ株式会社 | Equipment, systems, and programs |
WO2023044294A1 (en) | 2021-09-17 | 2023-03-23 | Iradimed Corporation | Ferromagnetic detector and threat analysis |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3573817A (en) * | 1968-02-28 | 1971-04-06 | North American Rockwell | Monitoring system |
US3725888A (en) * | 1971-04-05 | 1973-04-03 | Pyrotector Inc | Detector system |
US3971983A (en) * | 1972-06-06 | 1976-07-27 | Infinetics, Inc. | Ferromagnetic metal detector utilizing gradiometers positioned on opposite sides of the detection area with overlapping sensitivity |
EP0831339A2 (en) * | 1996-09-24 | 1998-03-25 | Vallon GmbH | Method and display arrangement showing the detected objects in a space surrounded by a door frame |
US5790685A (en) * | 1995-06-29 | 1998-08-04 | Tracor, Inc. | Apparatus and method for detecting and imaging metal |
Family Cites Families (18)
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US3665449A (en) * | 1969-07-11 | 1972-05-23 | Minnesota Mining & Mfg | Method and apparatus for detecting at a distance the status and identity of objects |
US4326198A (en) * | 1976-08-18 | 1982-04-20 | Knogo Corporation | Method and apparatus for the promotion of selected harmonic response signals in an article detection system |
US4413254A (en) * | 1981-09-04 | 1983-11-01 | Sensormatic Electronics Corporation | Combined radio and magnetic energy responsive surveillance marker and system |
US4595915A (en) * | 1984-02-06 | 1986-06-17 | Mrs. Lawrence Israel | Electronic surveillance system employing the doppler effect |
JPH0619470B2 (en) * | 1988-07-26 | 1994-03-16 | 大和製衡株式会社 | Detection method and detector for foreign matter such as metal |
US4888579A (en) * | 1988-09-16 | 1989-12-19 | Minnesota Mining And Manufacturing Company | False alarm minimization and direction determination methods |
US6308644B1 (en) * | 1994-06-08 | 2001-10-30 | William Diaz | Fail-safe access control chamber security system |
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US20040000999A1 (en) * | 2001-11-08 | 2004-01-01 | Turner John E. | System and method for scanning carriers for objects |
US7489128B2 (en) | 2002-03-11 | 2009-02-10 | Kopp Keith A | MRI protector |
US7154266B2 (en) * | 2003-01-17 | 2006-12-26 | Quantum Magnetics, Inc. | Screening method and apparatus |
US7315166B2 (en) * | 2003-01-17 | 2008-01-01 | Mednovus, Inc. | Magnetic resonance imaging screening method and apparatus |
US6956369B2 (en) * | 2003-01-17 | 2005-10-18 | Mednovus, Inc. | Screening method and apparatus |
-
2002
- 2002-11-12 GB GB0226334A patent/GB2395276B/en not_active Expired - Fee Related
-
2003
- 2003-11-05 CA CA2505543A patent/CA2505543C/en not_active Expired - Fee Related
- 2003-11-05 AU AU2003279455A patent/AU2003279455A1/en not_active Abandoned
- 2003-11-05 EP EP03772403.6A patent/EP1563326B1/en not_active Expired - Lifetime
- 2003-11-05 WO PCT/GB2003/004779 patent/WO2004044620A1/en active Application Filing
- 2003-11-05 JP JP2004550783A patent/JP4477503B2/en not_active Expired - Fee Related
- 2003-11-12 US US10/706,593 patent/US7113092B2/en not_active Expired - Lifetime
-
2005
- 2005-05-04 ZA ZA200503561A patent/ZA200503561B/en unknown
- 2005-05-08 IL IL168467A patent/IL168467A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3573817A (en) * | 1968-02-28 | 1971-04-06 | North American Rockwell | Monitoring system |
US3725888A (en) * | 1971-04-05 | 1973-04-03 | Pyrotector Inc | Detector system |
US3971983A (en) * | 1972-06-06 | 1976-07-27 | Infinetics, Inc. | Ferromagnetic metal detector utilizing gradiometers positioned on opposite sides of the detection area with overlapping sensitivity |
US5790685A (en) * | 1995-06-29 | 1998-08-04 | Tracor, Inc. | Apparatus and method for detecting and imaging metal |
EP0831339A2 (en) * | 1996-09-24 | 1998-03-25 | Vallon GmbH | Method and display arrangement showing the detected objects in a space surrounded by a door frame |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6956369B2 (en) | 2003-01-17 | 2005-10-18 | Mednovus, Inc. | Screening method and apparatus |
US7106056B2 (en) | 2003-01-17 | 2006-09-12 | Mednovus, Inc. | Security screening method and apparatus |
US7154266B2 (en) | 2003-01-17 | 2006-12-26 | Quantum Magnetics, Inc. | Screening method and apparatus |
US7239134B2 (en) | 2003-01-17 | 2007-07-03 | Mednovus, Inc. | Screening method and apparatus |
US7315166B2 (en) | 2003-01-17 | 2008-01-01 | Mednovus, Inc. | Magnetic resonance imaging screening method and apparatus |
US7239223B2 (en) | 2004-10-18 | 2007-07-03 | Mednovus, Inc. | Enhancement magnetizer for magnetic resonance imaging screening |
US7295107B2 (en) | 2004-12-30 | 2007-11-13 | Mednovus, Inc. | Ferromagnetic detection pillar |
WO2010109194A1 (en) | 2009-03-27 | 2010-09-30 | Qinetiq Limited | Apparatus and method for ferromagnetic object detector |
WO2010109195A1 (en) | 2009-03-27 | 2010-09-30 | Qinetiq Limited | Apparatus and method for ferromagnetic object detector |
CN104459803A (en) * | 2013-09-18 | 2015-03-25 | 中国地质大学(北京) | Intelligent long-period natural field source electromagnetic measuring apparatus and application method thereof |
CN104199024A (en) * | 2014-08-11 | 2014-12-10 | 中国西安卫星测控中心 | Target positioning method based on optical measurement of very short base line |
CN105424108A (en) * | 2016-01-04 | 2016-03-23 | 上海肯特仪表股份有限公司 | Magnetic field anomaly detection device of electromagnetic flowmeter sensor |
Also Published As
Publication number | Publication date |
---|---|
US7113092B2 (en) | 2006-09-26 |
CA2505543A1 (en) | 2004-05-27 |
GB2395276B (en) | 2006-03-08 |
GB2395276A (en) | 2004-05-19 |
GB0226334D0 (en) | 2002-12-18 |
US20040135687A1 (en) | 2004-07-15 |
EP1563326A1 (en) | 2005-08-17 |
CA2505543C (en) | 2014-01-07 |
ZA200503561B (en) | 2006-12-27 |
IL168467A (en) | 2010-11-30 |
JP4477503B2 (en) | 2010-06-09 |
AU2003279455A1 (en) | 2004-06-03 |
EP1563326B1 (en) | 2015-09-09 |
JP2006505781A (en) | 2006-02-16 |
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