EP1513168A3 - Method and apparatus for magnetising a magnet system - Google Patents

Method and apparatus for magnetising a magnet system Download PDF

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Publication number
EP1513168A3
EP1513168A3 EP04405528A EP04405528A EP1513168A3 EP 1513168 A3 EP1513168 A3 EP 1513168A3 EP 04405528 A EP04405528 A EP 04405528A EP 04405528 A EP04405528 A EP 04405528A EP 1513168 A3 EP1513168 A3 EP 1513168A3
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EP
European Patent Office
Prior art keywords
pulse
capacitor element
magnetizing coil
pulse generator
magnetizing
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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
EP04405528A
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German (de)
French (fr)
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EP1513168B1 (en
EP1513168A2 (en
Inventor
Albert Maurer
Urs Meyer
Stefan Haas
Olivier Müller
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Publication of EP1513168A2 publication Critical patent/EP1513168A2/en
Publication of EP1513168A3 publication Critical patent/EP1513168A3/en
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Publication of EP1513168B1 publication Critical patent/EP1513168B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F17/0013—Printed inductances with stacked layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator

Abstract

Die Vorrichtung (1) zum Magnetisieren eines Magnetsystems beinhaltet vorzugsweise mehrere Pulsgeneratorschaltungen (2.1-2.4), welche derart gegenseitig angeordnet sind, dass sich ihre Magnetfelder verstärkend überlagern. Jede Pulsgeneratorschaltung (2.1-2.4) weist ein Kondensatorelement (21), eine mit dem Kondensatorelement (21) elektrisch verbundene Magnetisierspule (22) und ein Schaltelement (23), durch dessen Betätigung die Magnetisierspule (22) mit einem durch Entladung des Kondensatorelements (21) entstehenden Strompuls mit begrenzter Pulsdauer beaufschlagbar und somit der Aufbau eines Magnetfeldes auslösbar ist. Die Pulsgeneratorschaltung (2.1-2.4) ist derart aufgebaut, dass die Pulsdauer des Strompulses auf einen Wert zwischen 10 µs und 500 µs begrenzt ist. Dank solch kurzen Pulsdauern ist die unerwünschte Erwärmung der Magnetisierspule (22) klein, so dass die Vorrichtung (1) in automatisierten Produktionsanlagen mit Taktraten unter 1 s eingesetzt werden kann.

Figure imgaf001
The device (1) for magnetizing a magnet system preferably includes a plurality of pulse generator circuits (2.1-2.4), which are mutually arranged so that their magnetic fields are superimposed amplifying. Each pulse generator circuit (2.1-2.4) has a capacitor element (21), a magnetizing coil (22) electrically connected to the capacitor element (21) and a switching element (23), by the actuation of which the magnetizing coil (22) is replaced by a discharge of the capacitor element (21 ) can be acted upon by the current pulse with limited pulse duration and thus the structure of a magnetic field can be triggered. The pulse generator circuit (2.1-2.4) is constructed such that the pulse duration of the current pulse is limited to a value between 10 μs and 500 μs. Thanks to such short pulse durations, the unwanted heating of the magnetizing coil (22) is small, so that the device (1) can be used in automated production systems with clock rates below 1 s.
Figure imgaf001
EP04405528.3A 2003-09-02 2004-08-24 Method and apparatus for magnetising a magnet system Active EP1513168B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH15062003 2003-09-02
CH150603 2003-09-02

Publications (3)

Publication Number Publication Date
EP1513168A2 EP1513168A2 (en) 2005-03-09
EP1513168A3 true EP1513168A3 (en) 2008-07-02
EP1513168B1 EP1513168B1 (en) 2017-03-08

Family

ID=34120765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405528.3A Active EP1513168B1 (en) 2003-09-02 2004-08-24 Method and apparatus for magnetising a magnet system

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US (1) US7324320B2 (en)
EP (1) EP1513168B1 (en)

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TWI227502B (en) * 2003-09-02 2005-02-01 Ind Tech Res Inst Precise multi-pole magnetic components and manufacturing method thereof
US7250866B2 (en) * 2005-06-03 2007-07-31 Sensormatic Electronics Corporation Techniques for deactivating electronic article surveillance labels using energy recovery
US9371923B2 (en) 2008-04-04 2016-06-21 Correlated Magnetics Research, Llc Magnetic valve assembly
US8760250B2 (en) 2009-06-02 2014-06-24 Correlated Magnetics Rsearch, LLC. System and method for energy generation
US8179219B2 (en) 2008-04-04 2012-05-15 Correlated Magnetics Research, Llc Field emission system and method
US8816805B2 (en) * 2008-04-04 2014-08-26 Correlated Magnetics Research, Llc. Magnetic structure production
US8704626B2 (en) 2010-05-10 2014-04-22 Correlated Magnetics Research, Llc System and method for moving an object
US9404776B2 (en) 2009-06-02 2016-08-02 Correlated Magnetics Research, Llc. System and method for tailoring polarity transitions of magnetic structures
US9711268B2 (en) 2009-09-22 2017-07-18 Correlated Magnetics Research, Llc System and method for tailoring magnetic forces
US8362863B2 (en) 2011-01-14 2013-01-29 General Electric Company System and method for magnetization of rare-earth permanent magnets
US9245677B2 (en) 2012-08-06 2016-01-26 Correlated Magnetics Research, Llc. System for concentrating and controlling magnetic flux of a multi-pole magnetic structure
CN106681422B (en) * 2016-12-14 2018-02-02 中国人民解放军国防科学技术大学 Electrical parameter adjustable magnetic switch and electrical parameter adjusting method online
US10586639B2 (en) 2017-01-04 2020-03-10 Wisk Aero Llc Array of three pole magnets
US11289962B2 (en) * 2017-01-04 2022-03-29 Wisk Aero Llc Method of rotor production including co-curing and magnetization in place
USD949106S1 (en) * 2019-11-18 2022-04-19 Maurer Magnetic Ag Demagnetization apparatus

Citations (2)

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US5469321A (en) * 1992-11-13 1995-11-21 Stupak, Jr.; Joseph J. Magnetizing device having variable charge storage network and voltage control

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US3678436A (en) * 1971-05-24 1972-07-18 Gen Electric Magnetizing apparatus and method
DE2806000A1 (en) 1978-02-13 1979-08-16 Eerichh Dr Ing Steingroever Pulse generator for magnetising permanent magnets - discharges electrolytic capacitor into coil and uses second capacitor to recover stored magnetic energy
DE2907898A1 (en) * 1979-03-01 1980-09-11 Steingroever Erich Dr Ing MULTIPOLE DEVICE AND METHOD FOR MAGNETIZING RING-SHAPED PERMANENT MAGNETS
DE3934691A1 (en) 1989-10-18 1991-04-25 Steingroever Magnet Physik Magnetising unit for high coercivity permanent magnets - has magnets placed at centre of plate conductor elements
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US6111490A (en) * 1996-06-19 2000-08-29 Aisin Seiki Kabushiki Kaisha Superconducting magnet apparatus and method for magnetizing superconductor
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101922A1 (en) * 1982-07-27 1984-03-07 Zentralen Maschinostroitelen Institut Method and device for treating ferromagnetic materials
US5469321A (en) * 1992-11-13 1995-11-21 Stupak, Jr.; Joseph J. Magnetizing device having variable charge storage network and voltage control

Also Published As

Publication number Publication date
EP1513168B1 (en) 2017-03-08
US7324320B2 (en) 2008-01-29
EP1513168A2 (en) 2005-03-09
US20050195058A1 (en) 2005-09-08

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