CA1341071C - Metallic glass alloys for mechanically resonant target surveillance systems - Google Patents

Metallic glass alloys for mechanically resonant target surveillance systems

Info

Publication number
CA1341071C
CA1341071C CA000610868A CA610868A CA1341071C CA 1341071 C CA1341071 C CA 1341071C CA 000610868 A CA000610868 A CA 000610868A CA 610868 A CA610868 A CA 610868A CA 1341071 C CA1341071 C CA 1341071C
Authority
CA
Canada
Prior art keywords
ranges
zero
khz
alloys
ring down
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 - Fee Related
Application number
CA000610868A
Other languages
English (en)
French (fr)
Inventor
Varagur Ramachandran Venkata Ramanan
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.)
Honeywell International Inc
Original Assignee
AlliedSignal Inc
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 AlliedSignal Inc filed Critical AlliedSignal Inc
Application granted granted Critical
Publication of CA1341071C publication Critical patent/CA1341071C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G08B13/2405—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 characterised by the tag technology used
    • G08B13/2408—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 characterised by the tag technology used using ferromagnetic tags
    • G08B13/2411—Tag deactivation
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Burglar Alarm Systems (AREA)
CA000610868A 1988-09-26 1989-09-11 Metallic glass alloys for mechanically resonant target surveillance systems Expired - Fee Related CA1341071C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24869988A 1988-09-26 1988-09-26
US248,699 1988-09-26

Publications (1)

Publication Number Publication Date
CA1341071C true CA1341071C (en) 2000-08-01

Family

ID=22940286

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000610868A Expired - Fee Related CA1341071C (en) 1988-09-26 1989-09-11 Metallic glass alloys for mechanically resonant target surveillance systems

Country Status (6)

Country Link
EP (1) EP0435885B1 (de)
JP (1) JPH04500985A (de)
CA (1) CA1341071C (de)
DE (1) DE68908184T2 (de)
DK (1) DK48791D0 (de)
WO (1) WO1990003652A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW226034B (de) * 1991-03-06 1994-07-01 Allied Signal Inc
DE9412456U1 (de) 1994-08-02 1994-10-27 Vacuumschmelze Gmbh Amorphe Legierung mit hoher Magnetostriktion und gleichzeitig hoher induzierter Anisotropie
US5949334A (en) * 1995-10-02 1999-09-07 Sensormatic Electronics Corporation Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
DE19545755A1 (de) * 1995-12-07 1997-06-12 Vacuumschmelze Gmbh Verwendung einer amorphen Legierung für magnetoelastisch anregbare Etiketten in auf mechanischer Resonanz basierenden Überwachungssystemen
DE19651525A1 (de) 1996-12-11 1998-06-18 Vacuumschmelze Gmbh Etiketten in akustomagnetischen Diebstahlsicherungssystemen
EP0944910B1 (de) * 1996-12-13 2002-08-14 Vacuumschmelze GmbH Anzeigeelement für die verwendung in einem magnetischen diebstahlsicherungssystem
DE19653430A1 (de) * 1996-12-20 1999-04-01 Vacuumschmelze Gmbh Anzeigeelement für die Verwendung in einem magnetischen Warenüberwachungssystem
US6057766A (en) * 1997-02-14 2000-05-02 Sensormatic Electronics Corporation Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
TW374183B (en) * 1997-06-24 1999-11-11 Toshiba Corp Amorphous magnetic material and magnetic core using the same
DE19732872C2 (de) * 1997-07-30 2002-04-18 Vacuumschmelze Gmbh Anzeigeelement für die Verwendung in einem magnetischen Diebstahlsicherungssystem
US6803118B2 (en) 1997-07-30 2004-10-12 Vacuumschmelze Gmbh Marker for use in a magnetic anti-theft security system
DE19740908C1 (de) 1997-09-17 1999-08-05 Vacuumschmelze Gmbh Anzeigeelement für die Verwendung in einem magnetischen Diebstahlsicherungssystem und Verfahren zur Herstellung eines Aktivierungsstreifens hierfür
US6011475A (en) * 1997-11-12 2000-01-04 Vacuumschmelze Gmbh Method of annealing amorphous ribbons and marker for electronic article surveillance
US6254695B1 (en) * 1998-08-13 2001-07-03 Vacuumschmelze Gmbh Method employing tension control and lower-cost alloy composition annealing amorphous alloys with shorter annealing time
DE29823167U1 (de) 1998-12-29 1999-04-08 Georg Siegel Gmbh Zur Verwertu Warensicherungselement
US6359563B1 (en) * 1999-02-10 2002-03-19 Vacuumschmelze Gmbh ‘Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude’
US6645314B1 (en) 2000-10-02 2003-11-11 Vacuumschmelze Gmbh Amorphous alloys for magneto-acoustic markers in electronic article surveillance having reduced, low or zero co-content and method of annealing the same
JP4244123B2 (ja) 2002-08-20 2009-03-25 日立金属株式会社 レゾネータ
CA2590826C (en) * 2006-06-06 2014-09-30 Owen Oil Tools Lp Retention member for perforating guns
DE102006047022B4 (de) 2006-10-02 2009-04-02 Vacuumschmelze Gmbh & Co. Kg Anzeigeelement für ein magnetisches Diebstahlsicherungssystem sowie Verfahren zu dessen Herstellung
US7432815B2 (en) 2006-10-05 2008-10-07 Vacuumschmelze Gmbh & Co. Kg Marker for a magnetic theft protection system and method for its production
JP6337994B1 (ja) * 2017-06-26 2018-06-06 Tdk株式会社 軟磁性合金および磁性部品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933183B2 (ja) * 1980-06-24 1984-08-14 株式会社東芝 低損失非晶質合金
US4510489A (en) * 1982-04-29 1985-04-09 Allied Corporation Surveillance system having magnetomechanical marker
US4510490A (en) * 1982-04-29 1985-04-09 Allied Corporation Coded surveillance system having magnetomechanical marker
JPS58213857A (ja) * 1982-06-04 1983-12-12 Takeshi Masumoto 疲労特性に優れた非晶質鉄基合金

Also Published As

Publication number Publication date
DE68908184T2 (de) 1993-11-25
DK48791A (da) 1991-03-19
EP0435885A1 (de) 1991-07-10
WO1990003652A1 (en) 1990-04-05
DK48791D0 (da) 1991-03-19
DE68908184D1 (de) 1993-09-09
EP0435885B1 (de) 1993-08-04
JPH04500985A (ja) 1992-02-20

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