CA2217723C - Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique - Google Patents

Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique Download PDF

Info

Publication number
CA2217723C
CA2217723C CA002217723A CA2217723A CA2217723C CA 2217723 C CA2217723 C CA 2217723C CA 002217723 A CA002217723 A CA 002217723A CA 2217723 A CA2217723 A CA 2217723A CA 2217723 C CA2217723 C CA 2217723C
Authority
CA
Canada
Prior art keywords
ranges
recited
alloy
strip
marker
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
CA002217723A
Other languages
English (en)
Other versions
CA2217723A1 (fr
Inventor
Ryusuke Hasegawa
Ronald Martis
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.)
Tyco Fire and Security GmbH
Original Assignee
Sensormatic Electronics Corp
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
Priority claimed from US08/421,094 external-priority patent/US5628840A/en
Application filed by Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of CA2217723A1 publication Critical patent/CA2217723A1/fr
Application granted granted Critical
Publication of CA2217723C publication Critical patent/CA2217723C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • H01F1/15316—Amorphous metallic alloys, e.g. glassy metals based on Co
    • 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

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

Abstract

L'invention porte sur un alliage amorphe vitreux essentiellement représenté par la formule: CoaFebNicMdBeSifCg dans laquelle M est sélectionné parmi du molybdène, du chrome et du manganèse et dans laquelle les lettres "a" à "g" représentent un pourcentage atomique, "a" étant compris entre 30 et 45 environ, "b" entre 4 et 40 environ, "c" entre 5 et 45 environ, "d" entre 0 et 3 environ, "e" entre 10 et 25 environ, "f" entre 0 et 15 environ, et "g" entre 0 et 2 environ. Il est possible de mouler cet alliage par solidification rapide dans un ruban, de le recuire pour renforcer ses propriétés magnétiques et de lui donner la forme d'un indicateur particulièrement approprié pour être utilisé dans des systèmes de surveillance d'articles à commande magnéto-mécanique. Pour un meilleur résultat, cet indicateur se caractérise par une réponse d'aimantation relativement linéaire dans un régime de fréquences où des systèmes à indicateurs d'harmoniques fonctionnent de façon magnétique. Les amplitudes de tension que l'on décèle dans cet indicateur sont élevées et une interférence existant entre des systèmes de surveillance se fondant sur une résonance mécanique et une re-radiance harmonique est à peu près éliminée.
CA002217723A 1995-04-13 1996-04-12 Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique Expired - Fee Related CA2217723C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/421,094 1995-04-13
US08/421,094 US5628840A (en) 1995-04-13 1995-04-13 Metallic glass alloys for mechanically resonant marker surveillance systems
US08/465,051 US5650023A (en) 1995-04-13 1995-06-06 Metallic glass alloys for mechanically resonant marker surveillance systems
US08/465,051 1995-06-06
PCT/US1996/005093 WO1996032518A1 (fr) 1995-04-13 1996-04-12 Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique

Publications (2)

Publication Number Publication Date
CA2217723A1 CA2217723A1 (fr) 1996-10-17
CA2217723C true CA2217723C (fr) 2007-07-03

Family

ID=38249310

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002217723A Expired - Fee Related CA2217723C (fr) 1995-04-13 1996-04-12 Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique

Country Status (1)

Country Link
CA (1) CA2217723C (fr)

Also Published As

Publication number Publication date
CA2217723A1 (fr) 1996-10-17

Similar Documents

Publication Publication Date Title
US5650023A (en) Metallic glass alloys for mechanically resonant marker surveillance systems
KR910000821B1 (ko) 비결정성 도난방지 표시기 및 자기도난탐지시스템
EP0907957B1 (fr) Alliages de verre metallique pour dispositifs de surveillance a marqueurs a resonance mecanique
EP0820633B1 (fr) Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique
US6018296A (en) Amorphous magnetostrictive alloy with low cobalt content and method for annealing same
EP1145202B1 (fr) Element magnetostrictif riche en fer presentant une caracteristique optimisee de frequence de resonance dependant du champ de polarisation
CA1341071C (fr) Alliages de verre metallique pour systemes de surveillance de cibles utilisant une resonance mecanique
US6187112B1 (en) Metallic glass alloys for mechanically resonant marker surveillance systems
US5495231A (en) Metallic glass alloys for mechanically resonant marker surveillance systems
CA2280148C (fr) Element a magnetostriction presentant une caracteristique optimisee de frequence de resonance dependant du champ de polarisation
CA2217723C (fr) Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique
CA2217722C (fr) Alliages amorphes vitreux destines a des systemes de surveillance avec indicateurs a resonance mecanique
KR100478114B1 (ko) 기계적공진마커감시시스템을위한금속유리합금
USRE35042E (en) Amorphous antipilferage marker
MXPA97007747A (en) Metal glass alloys for marker supervision systems mechanically resona

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160412