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WO2008032274A3 - Magneto-mechanical markers for use in article surveilance system - Google Patents

Magneto-mechanical markers for use in article surveilance system Download PDF

Info

Publication number
WO2008032274A3
WO2008032274A3 PCT/IB2007/053674 IB2007053674W WO2008032274A3 WO 2008032274 A3 WO2008032274 A3 WO 2008032274A3 IB 2007053674 W IB2007053674 W IB 2007053674W WO 2008032274 A3 WO2008032274 A3 WO 2008032274A3
Authority
WO
WIPO (PCT)
Prior art keywords
ranges
magnetostrictive
magneto
group
strip
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.)
Ceased
Application number
PCT/IB2007/053674
Other languages
French (fr)
Other versions
WO2008032274A2 (en
Inventor
Yuri Tarakanov
Vladimir Manov
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.)
MEGASEC Ltd
Original Assignee
MEGASEC Ltd
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 MEGASEC Ltd filed Critical MEGASEC Ltd
Publication of WO2008032274A2 publication Critical patent/WO2008032274A2/en
Publication of WO2008032274A3 publication Critical patent/WO2008032274A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/008—Amorphous alloys with Fe, Co or Ni as the major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/04—Amorphous alloys with nickel or cobalt as the major constituent
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15341—Preparation processes therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Soft Magnetic Materials (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

For use in a magnetic theft detection system a magneto- mechanical marker containing semihard ferromagnetic strip and amorphous magnetostrictive element made from alloy having composition in atomic % corresponding to the formula: NiaFebCocM' kM' 'mBdSie; wherein M' is at least one element from the group consisting of Cr, Mo, and Mn, and M' ' is at least one element from the group consisting of surface active elements like Sn, Pb and Bi, and 'a' ranges 15 to 32, 'b' ranges 22 to 29, 'c' ranges 24 to 29.5, 'd' ranges 15 to 25, 'e' ranges O to 3, 'k' is the sum of amount of elements of group M' and ranges from 5.1 to 10, 'm' ranges from 0.001 to 0.04 and sum of 'a-m' is 100, consisting of at least one or more amorphous magnetostrictive strip pieces disposed in a stack, each having a length and width and the respective widths of said at least two or more magnetostrictive strip pieces being substantially different or equal and not exceeding 10 mm, and the respective lengths of said at least two or more magnetostrictive strip pieces being substantially equal, and semihard ferromagnetic strip disposed so to bias said magnetostrictive element with dc magnetic field ranging from 3.0 to 10.0 Oe.
PCT/IB2007/053674 2006-09-13 2007-09-12 Magneto-mechanical markers for use in article surveilance system Ceased WO2008032274A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84410606P 2006-09-13 2006-09-13
US60/844,106 2006-09-13

Publications (2)

Publication Number Publication Date
WO2008032274A2 WO2008032274A2 (en) 2008-03-20
WO2008032274A3 true WO2008032274A3 (en) 2008-08-28

Family

ID=39032269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/053674 Ceased WO2008032274A2 (en) 2006-09-13 2007-09-12 Magneto-mechanical markers for use in article surveilance system

Country Status (1)

Country Link
WO (1) WO2008032274A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010082195A1 (en) 2009-01-13 2010-07-22 Vladimir Manov Magnetomechanical markers and magnetostrictive amorphous element for use therein
CN102383070B (en) * 2011-10-25 2013-03-20 安泰科技股份有限公司 Additive for B-Si containing iron-based amorphous alloy and nanocrystalline alloy
WO2014116709A1 (en) * 2013-01-22 2014-07-31 Glassimetal Technology, Inc. Melt overheating method for improved toughness and glass-forming ability of metallic glasses
US20200216926A1 (en) * 2017-07-04 2020-07-09 Hitachi Metals, Ltd. Amorphous alloy ribbon and method for manufacturing same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5568125A (en) * 1994-06-30 1996-10-22 Sensormatic Electronics Corporation Two-stage annealing process for amorphous ribbon used in an EAS marker
US5786762A (en) * 1994-06-30 1998-07-28 Sensormatic Electronics Corporation Magnetostrictive element for use in a magnetomechanical surveillance system
WO1998036392A1 (en) * 1997-02-14 1998-08-20 Sensormatic Electronics Corporation Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
WO1999066624A1 (en) * 1998-06-18 1999-12-23 Alliedsignal Inc. Amorphous metal stator for a radial-flux electric motor
WO2000009768A1 (en) * 1998-08-13 2000-02-24 Vacuumschmelze Gmbh Method for annealing an amorphous alloy and method for manufacturing a marker
WO2000048152A1 (en) * 1999-02-10 2000-08-17 Vacuumschmelze Gmbh Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude
WO2001050483A1 (en) * 2000-01-05 2001-07-12 Honeywell International Inc. Bulk amorphous metal magnetic component
WO2004077370A2 (en) * 2003-02-27 2004-09-10 Fabian Carl E Miniature magnetomechanical marker for electronic article surveillance system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5568125A (en) * 1994-06-30 1996-10-22 Sensormatic Electronics Corporation Two-stage annealing process for amorphous ribbon used in an EAS marker
US5786762A (en) * 1994-06-30 1998-07-28 Sensormatic Electronics Corporation Magnetostrictive element for use in a magnetomechanical surveillance system
WO1998036392A1 (en) * 1997-02-14 1998-08-20 Sensormatic Electronics Corporation Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
WO1999066624A1 (en) * 1998-06-18 1999-12-23 Alliedsignal Inc. Amorphous metal stator for a radial-flux electric motor
WO2000009768A1 (en) * 1998-08-13 2000-02-24 Vacuumschmelze Gmbh Method for annealing an amorphous alloy and method for manufacturing a marker
WO2000048152A1 (en) * 1999-02-10 2000-08-17 Vacuumschmelze Gmbh Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude
WO2001050483A1 (en) * 2000-01-05 2001-07-12 Honeywell International Inc. Bulk amorphous metal magnetic component
WO2004077370A2 (en) * 2003-02-27 2004-09-10 Fabian Carl E Miniature magnetomechanical marker for electronic article surveillance system

Also Published As

Publication number Publication date
WO2008032274A2 (en) 2008-03-20

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