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
Application number
PCT/IB2007/053674
Other languages
French (fr)
Other versions
WO2008032274A2 (en
Inventor
Yuri Tarakanov
Vladimir Manov
Original Assignee
Megasec Ltd
Yuri Tarakanov
Vladimir Manov
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, Yuri Tarakanov, Vladimir Manov filed Critical Megasec Ltd
Publication of WO2008032274A2 publication Critical patent/WO2008032274A2/en
Publication of WO2008032274A3 publication Critical patent/WO2008032274A3/en

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

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 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 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

Similar Documents

Publication Publication Date Title
US5083112A (en) Multi-layer thin-film eas marker
WO2008032274A3 (en) Magneto-mechanical markers for use in article surveilance system
EP1494295A4 (en) Magnetoresistance effect element and magnetic memory device
BR9713264A (en) Magnetostrictive element for application in a magnetomechanical surveillance system
PL1947209T3 (en) Hard coating film for forming tool and forming tool
ATE197724T1 (en) AMORPHOUS METAL ALLOYS FOR SURVEILLANCE SYSTEMS WITH MECHANICALLY REVITALIZING MARKERS
DE60028986D1 (en) GLASS-COATED AMORPHE MAGNETIC MICROWAVE MARKING FOR GOODS MONITORING
DE60113841D1 (en) MAGNETIC RECORDING AGENT AND METHOD FOR THE PRODUCTION THEREOF
DE2732167A1 (en) MARKER FOR THE PREVENTION OF THEFT AND METHOD FOR MANUFACTURING THE MARKER
ATE468592T1 (en) ANNEALED AMORPHOUS ALLOYS FOR MAGNETO-ACUSTIC MARKERS
AU2003303840A1 (en) A magnetic material with cooling capacity, a method for the manufacturing thereof and use of such material
MX2009012221A (en) Low density steel with good stamping capability.
MY141060A (en) Perpendicular magnetic recording medium
DE4323883A1 (en) Theft protection label
WO2004077370A3 (en) Miniature magnetomechanical marker for electronic article surveillance system
EP1983512A4 (en) Biaxially oriented polyester film and magnetic recording tape
SE519410C2 (en) Arrangements utilizing a magnetic attractiveness
TW200501084A (en) Magnetic device with improved antiferromagnetically coupling film
GB2363671A (en) Giant magnetoresistive sensor with pinning layer
Bajić Severe bora on the northern Adriatic part I: statistical analysis
CA2348955A1 (en) Structures with improved magnetic characteristics for giant magneto-resistance applications
HK1070179A1 (en) Magnetic marker for use in electronic article surveillance systems utilizing magnetic harmonics
SG136800A1 (en) Magnetoresistive head and manufacturing method thereof
AU2003242722A1 (en) Electrode needle
JPS63307238A (en) Amorphous alloy for stripe shape sensor element

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07826353

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 27-08-2009 )

122 Ep: pct application non-entry in european phase

Ref document number: 07826353

Country of ref document: EP

Kind code of ref document: A2