EP0557689A3 - - Google Patents

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Publication number
EP0557689A3
EP0557689A3 EP93100179A EP93100179A EP0557689A3 EP 0557689 A3 EP0557689 A3 EP 0557689A3 EP 93100179 A EP93100179 A EP 93100179A EP 93100179 A EP93100179 A EP 93100179A EP 0557689 A3 EP0557689 A3 EP 0557689A3
Authority
EP
European Patent Office
Prior art keywords
transition temperature
produce
magnetic field
materials
composite body
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
EP93100179A
Other versions
EP0557689B1 (en
EP0557689A2 (en
Inventor
Gernot Dr Hausch
Christian Dr Radeloff
Gerd Dipl-Phys Rauscher
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 EP0557689A2 publication Critical patent/EP0557689A2/en
Publication of EP0557689A3 publication Critical patent/EP0557689A3/xx
Application granted granted Critical
Publication of EP0557689B1 publication Critical patent/EP0557689B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/143—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 in the form of wires
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • 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
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0304—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions adapted for large Barkhausen jumps or domain wall rotations, e.g. WIEGAND or MATTEUCCI effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2251/00—Treating composite or clad material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2251/00—Treating composite or clad material
    • C21D2251/02—Clad material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/106—Magnetic circuits using combinations of different magnetic materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12937—Co- or Ni-base component next to Fe-base component

Abstract

In order to produce a pulse generator, in the case of which a voltage pulse, which is independent of the magnetic field change, can be produced by sudden reversal of the magnetisation (Barkhausen effect) when a magnetic field is applied, an iron alloy 2 is used for one of the materials of the composite body, the additional alloying components of which alloy are selected such that a structural transformation takes place, with a volume change, at different temperatures in each case. In order to produce the braced state, heat treatment is then carried out, which includes heating above the upper transition temperature and cooling below the lower transition temperature. This results in considerably higher stresses between the materials of the composite body and hence a pulse behaviour which is considerably better than that known and which can be used for identifying constant or alternating magnetic fields. <IMAGE>
EP93100179A 1992-01-28 1993-01-08 Method for manufacturing a magnetic pulse generator Expired - Lifetime EP0557689B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202240 1992-01-28
DE4202240A DE4202240A1 (en) 1992-01-28 1992-01-28 METHOD FOR PRODUCING A MAGNETIC IMPULSE SENSOR

Publications (3)

Publication Number Publication Date
EP0557689A2 EP0557689A2 (en) 1993-09-01
EP0557689A3 true EP0557689A3 (en) 1994-12-14
EP0557689B1 EP0557689B1 (en) 1998-04-08

Family

ID=6450389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100179A Expired - Lifetime EP0557689B1 (en) 1992-01-28 1993-01-08 Method for manufacturing a magnetic pulse generator

Country Status (9)

Country Link
US (1) US6120617A (en)
EP (1) EP0557689B1 (en)
JP (1) JP2528801B2 (en)
AT (1) ATE164964T1 (en)
CA (1) CA2088207A1 (en)
DE (2) DE4202240A1 (en)
ES (1) ES2114960T3 (en)
FI (1) FI930149A (en)
NO (1) NO930273L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09180936A (en) 1995-12-27 1997-07-11 Unitika Ltd Magnetic element
US6556139B2 (en) * 2000-11-14 2003-04-29 Advanced Coding Systems Ltd. System for authentication of products and a magnetic tag utilized therein
DE102016123210A1 (en) * 2016-12-01 2018-06-07 Centitech Gmbh voltage generator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558715C (en) * 1972-12-21 Wang, Frederick E, BeltsviUe, Buehler, William J , Bethesda, Md (V St A) Alloys with a martensitic transition
DE3119898A1 (en) * 1981-05-19 1982-12-16 Beru-Werk Albert Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg Metal core for induction coils, process for manufacturing it, and use thereof
DE3152008C1 (en) * 1981-12-31 1983-07-07 Fried. Krupp Gmbh, 4300 Essen Elongated magnetic switching core
DE3824075A1 (en) * 1988-07-15 1990-01-18 Vacuumschmelze Gmbh COMPOSITE BODY FOR GENERATING VOLTAGE PULSES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933337A1 (en) * 1979-08-17 1981-03-26 Robert Bosch Gmbh, 70469 Stuttgart Pulse generator with two-layer ferromagnetic wire - having specified composition with change in magnetisation producing electric pulses
JPS5644746A (en) * 1979-09-20 1981-04-24 Tdk Corp Amorphous magnetic alloy material for magnetic core for accelerating or controlling charged particle and its manufacture
DE3411079A1 (en) * 1984-03-26 1985-09-26 Vacuumschmelze Gmbh, 6450 Hanau SPOOL CORE FOR AN INDUCTIVE, FREQUENCY-INDEPENDENT SWITCHING DEVICE
US4660025A (en) * 1984-11-26 1987-04-21 Sensormatic Electronics Corporation Article surveillance magnetic marker having an hysteresis loop with large Barkhausen discontinuities

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558715C (en) * 1972-12-21 Wang, Frederick E, BeltsviUe, Buehler, William J , Bethesda, Md (V St A) Alloys with a martensitic transition
DE3119898A1 (en) * 1981-05-19 1982-12-16 Beru-Werk Albert Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg Metal core for induction coils, process for manufacturing it, and use thereof
DE3152008C1 (en) * 1981-12-31 1983-07-07 Fried. Krupp Gmbh, 4300 Essen Elongated magnetic switching core
DE3824075A1 (en) * 1988-07-15 1990-01-18 Vacuumschmelze Gmbh COMPOSITE BODY FOR GENERATING VOLTAGE PULSES

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Also Published As

Publication number Publication date
US6120617A (en) 2000-09-19
NO930273L (en) 1993-07-29
FI930149A0 (en) 1993-01-14
DE4202240A1 (en) 1993-07-29
JP2528801B2 (en) 1996-08-28
ATE164964T1 (en) 1998-04-15
EP0557689B1 (en) 1998-04-08
CA2088207A1 (en) 1993-07-29
ES2114960T3 (en) 1998-06-16
EP0557689A2 (en) 1993-09-01
JPH0684630A (en) 1994-03-25
DE59308365D1 (en) 1998-05-14
FI930149A (en) 1993-07-29
NO930273D0 (en) 1993-01-27

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