EP0291726A3 - Amorphous alloy for strip-shaped sensor elements - Google Patents

Amorphous alloy for strip-shaped sensor elements Download PDF

Info

Publication number
EP0291726A3
EP0291726A3 EP88106558A EP88106558A EP0291726A3 EP 0291726 A3 EP0291726 A3 EP 0291726A3 EP 88106558 A EP88106558 A EP 88106558A EP 88106558 A EP88106558 A EP 88106558A EP 0291726 A3 EP0291726 A3 EP 0291726A3
Authority
EP
European Patent Office
Prior art keywords
strip
sensor elements
amorphous alloy
shaped sensor
shaped
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.)
Granted
Application number
EP88106558A
Other languages
German (de)
Other versions
EP0291726A2 (en
EP0291726B1 (en
Inventor
Hans-Rainer Dr. Hilzinger
Giselher Dr. Herzer
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of EP0291726A2 publication Critical patent/EP0291726A2/en
Publication of EP0291726A3 publication Critical patent/EP0291726A3/en
Application granted granted Critical
Publication of EP0291726B1 publication Critical patent/EP0291726B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01F1/15316—Amorphous metallic alloys, e.g. glassy metals based on Co

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Burglar Alarm Systems (AREA)
EP88106558A 1987-05-21 1988-04-23 Amorphous alloy for strip-shaped sensor elements Expired - Lifetime EP0291726B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873717043 DE3717043A1 (en) 1987-05-21 1987-05-21 AMORPHOUS ALLOY FOR STRIP-SHAPED SENSOR ELEMENTS
DE3717043 1987-05-21

Publications (3)

Publication Number Publication Date
EP0291726A2 EP0291726A2 (en) 1988-11-23
EP0291726A3 true EP0291726A3 (en) 1989-07-05
EP0291726B1 EP0291726B1 (en) 1993-06-23

Family

ID=6328040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106558A Expired - Lifetime EP0291726B1 (en) 1987-05-21 1988-04-23 Amorphous alloy for strip-shaped sensor elements

Country Status (4)

Country Link
US (1) US5037494A (en)
EP (1) EP0291726B1 (en)
JP (1) JP3065085B2 (en)
DE (2) DE3717043A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015992A (en) * 1989-06-29 1991-05-14 Pitney Bowes Inc. Cobalt-niobium amorphous ferromagnetic alloys
US5015993A (en) * 1989-06-29 1991-05-14 Pitney Bowes Inc. Ferromagnetic alloys with high nickel content and high permeability
US5532598A (en) * 1994-05-25 1996-07-02 Westinghouse Electric Corporation Amorphous metal tagging system for underground structures including elongated particles of amorphous metal embedded in nonmagnetic and nonconductive material
US5800635A (en) * 1995-06-15 1998-09-01 Alliedsignal Inc. Method of achieving a controlled step change in the magnetization loop of amorphous alloys
DE19802349B4 (en) * 1997-01-23 2010-04-15 Alps Electric Co., Ltd. Soft magnetic amorphous alloy, high hardness amorphous alloy and their use
US6432226B2 (en) 1999-04-12 2002-08-13 Alliedsignal Inc. Magnetic glassy alloys for high frequency applications
US6475303B1 (en) 1999-04-12 2002-11-05 Honeywell International Inc. Magnetic glassy alloys for electronic article surveillance
DE19918589A1 (en) 1999-04-23 2000-10-26 Vacuumschmelze Gmbh Magnetic marking strip and method for making a magnetic marking strip
US20100109670A1 (en) * 2006-06-02 2010-05-06 Societe Plymouth Francaise Detection system suitable for identifying and tracking buried pipes or other bodies buried in the ground or embedded in civil engineering works
US7771545B2 (en) * 2007-04-12 2010-08-10 General Electric Company Amorphous metal alloy having high tensile strength and electrical resistivity
US9275529B1 (en) * 2014-06-09 2016-03-01 Tyco Fire And Security Gmbh Enhanced signal amplitude in acoustic-magnetomechanical EAS marker
US10989834B2 (en) 2017-10-27 2021-04-27 Energy & Environmental Research Center Identifying subterranean structures using amorphous metal markers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021101A1 (en) * 1979-06-15 1981-01-07 Vacuumschmelze GmbH Amorphous soft magnetic alloy
US4298862A (en) * 1979-04-23 1981-11-03 Allied Chemical Corporation Amorphous antipilferage marker
US4553136A (en) * 1983-02-04 1985-11-12 Allied Corporation Amorphous antipilferage marker
USRE32428E (en) * 1979-04-23 1987-05-26 Allied Corporation Amorphous antipilferage marker

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59582B2 (en) * 1976-03-23 1984-01-07 東北大学金属材料研究所長 Amorphous alloy for magnetic heads with low magnetostriction and high wear resistance and its manufacturing method
US4188211A (en) * 1977-02-18 1980-02-12 Tdk Electronics Company, Limited Thermally stable amorphous magnetic alloy
JPS6037179B2 (en) * 1977-02-24 1985-08-24 ティーディーケイ株式会社 amorphous magnetic alloy
US4225339A (en) * 1977-12-28 1980-09-30 Tokyo Shibaura Denki Kabushiki Kaisha Amorphous alloy of high magnetic permeability
US4439236A (en) * 1979-03-23 1984-03-27 Allied Corporation Complex boride particle containing alloys
US4484184A (en) * 1979-04-23 1984-11-20 Allied Corporation Amorphous antipilferage marker
JPS5931580B2 (en) * 1979-08-28 1984-08-02 東北金属工業株式会社 Method for producing amorphous alloy thin plate with low coercive force and high squareness
JPS5754251A (en) * 1980-09-15 1982-03-31 Tdk Corp Amorphous magnetic alloy material
JPS57205872A (en) * 1981-03-19 1982-12-17 Toshiba Corp Cassette tape
JPS5831053A (en) * 1981-08-18 1983-02-23 Toshiba Corp Amorphous alloy
EP0078401B1 (en) * 1981-11-02 1985-08-07 Allied Corporation Amorphous antipilferage marker
EP0160166A1 (en) * 1981-11-26 1985-11-06 Allied Corporation Low magnetostriction amorphous metal alloys
JPS6070157A (en) * 1983-09-28 1985-04-20 Toshiba Corp Amorphous alloy and its manufacture
JPS6164861A (en) * 1984-09-06 1986-04-03 Tohoku Metal Ind Ltd Manufacture of amorphous alloy having small magnetic loss and high angular property

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298862A (en) * 1979-04-23 1981-11-03 Allied Chemical Corporation Amorphous antipilferage marker
USRE32428E (en) * 1979-04-23 1987-05-26 Allied Corporation Amorphous antipilferage marker
EP0021101A1 (en) * 1979-06-15 1981-01-07 Vacuumschmelze GmbH Amorphous soft magnetic alloy
US4553136A (en) * 1983-02-04 1985-11-12 Allied Corporation Amorphous antipilferage marker

Also Published As

Publication number Publication date
EP0291726A2 (en) 1988-11-23
JPS63307238A (en) 1988-12-14
US5037494A (en) 1991-08-06
DE3881962D1 (en) 1993-07-29
EP0291726B1 (en) 1993-06-23
DE3717043A1 (en) 1988-12-15
JP3065085B2 (en) 2000-07-12

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