BRPI0511105A - disposição de detector magnético e método para obtenção de um campo magnético simétrico - Google Patents

disposição de detector magnético e método para obtenção de um campo magnético simétrico

Info

Publication number
BRPI0511105A
BRPI0511105A BRPI0511105-6A BRPI0511105A BRPI0511105A BR PI0511105 A BRPI0511105 A BR PI0511105A BR PI0511105 A BRPI0511105 A BR PI0511105A BR PI0511105 A BRPI0511105 A BR PI0511105A
Authority
BR
Brazil
Prior art keywords
magnets
magnetic field
present
auto switch
magnetic
Prior art date
Application number
BRPI0511105-6A
Other languages
English (en)
Inventor
Glabeke Pierre Van
Original Assignee
Volvo Lastvagnar Ab
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 Volvo Lastvagnar Ab filed Critical Volvo Lastvagnar Ab
Publication of BRPI0511105A publication Critical patent/BRPI0511105A/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2013—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2033—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0294—Detection, inspection, magnetic treatment

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

DISPOSIçãO DE DETECTOR MAGNéTICO E MéTODO PAPA OBTENçãO DE UM CAMPO MEGNéTICO SIMéTRICO. A presente invenção se refere a uma disposição de detector magnético, compreendendo dois magnetos igualmente polarizados (4, 5) posicionados próximos um em relação para o outro com a polarização na mesma direção, e um elemento de detector magnético (18). Em concordância com a presente invenção, a referida disposição de detector magnético está caracterizada pelo fato de que os referidos magnetos: (4, 5) estão dispostos separados em uma distância pré-definida tal que o campo magnético a partir dos magnetos (4, 5) irá se sobrepor. A vantagem da presente invenção é a de proporcionar uma disposição de detector magnético com uma tolerância aperfeiçoada em direção de desvios no campo magnético dos magnetos permanentes compreendidos. A presente invenção também se refere a um método para obtenção de um campo magnético simétrico em uma disposição de detector magnético a partir de uma disposição magnética compreendendo dois magnetos. Também em concordância com a presente invenção, o referido método está caracterizado pelo fato de que compreende a etapa de se cada magneto exibe um desvio da direção do campo magnético levando em consideração o eixo geométrico de simetria (7), então a posição dos magnetos (4, 5) é tal que o desvio é simétrico levando em consideração uma linha central entre os magnetos (4, 5).
BRPI0511105-6A 2004-05-19 2005-05-19 disposição de detector magnético e método para obtenção de um campo magnético simétrico BRPI0511105A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0401310A SE527102C2 (sv) 2004-05-19 2004-05-19 Magnetdetektorarrangemang och förfarande för att erhålla ett symmetriskt magnetfält
PCT/SE2005/000745 WO2005112054A1 (en) 2004-05-19 2005-05-19 Magnetic detector arrangement and method for obtaining a symmetric magnetic field

Publications (1)

Publication Number Publication Date
BRPI0511105A true BRPI0511105A (pt) 2007-11-27

Family

ID=32589771

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0511105-6A BRPI0511105A (pt) 2004-05-19 2005-05-19 disposição de detector magnético e método para obtenção de um campo magnético simétrico

Country Status (6)

Country Link
US (1) US7342394B2 (pt)
EP (1) EP1761937B1 (pt)
JP (1) JP2007538401A (pt)
BR (1) BRPI0511105A (pt)
SE (1) SE527102C2 (pt)
WO (1) WO2005112054A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2908510B1 (fr) * 2006-11-15 2009-01-09 Siemens Vdo Automotive Sas Generateur de champ magnetique destine a etre associe a un capteur angulaire de mesure de la direction du champ magnetique genere par ledit generateur
US20080307900A1 (en) * 2007-05-31 2008-12-18 Caterpillar Inc. Self-contained wireless rotational speed sensing unit
US8974749B2 (en) 2008-06-16 2015-03-10 Johnson & Johnson Ab Assay device and method
CN106680741B (zh) * 2016-10-17 2019-05-17 北京工业大学 一种铁磁材料损伤检测用高灵敏度扫描式低频电磁传感器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680026A (en) * 1971-05-24 1972-07-25 Denki Onkyo Co Ltd Contactless switching apparatus
FR2331774A1 (fr) * 1975-11-12 1977-06-10 Radiotechnique Compelec Procede de reperage dynamique de positions particulieres de pieces mobiles a l'aide d'un cristal a effet hall et dispositifs de mise en oeuvre du procede
DE3510503A1 (de) * 1985-03-22 1986-10-02 Hübner Elektromaschinen AG, 1000 Berlin Verfahren zur herstellung von kreisringsektorartigen permanentmagneten
DE3638622A1 (de) * 1986-11-12 1988-05-26 Mannesmann Kienzle Gmbh Magnetfeldgeber
JPH0413925A (ja) * 1990-05-02 1992-01-17 Komatsu Ltd 磁気検出器
JPH06258006A (ja) * 1993-03-02 1994-09-16 Seiko Epson Corp 変位センサ
JP3269307B2 (ja) * 1995-01-10 2002-03-25 日産自動車株式会社 ピックアップセンサおよびピックアップセンサを適用した車速検出装置
US5781005A (en) * 1995-06-07 1998-07-14 Allegro Microsystems, Inc. Hall-effect ferromagnetic-article-proximity sensor
DE842392T1 (de) * 1995-08-02 1999-01-07 Durakool Inc., Elkhart, Ind. Zahnradbewegungssensor mit verbesserter stabilität und auflösung
US5606254A (en) * 1995-10-19 1997-02-25 General Motors Corporation Rotation sensor employing coil wound on assembly of a core interposed between two magnets
JPH09311008A (ja) * 1996-05-23 1997-12-02 Omron Corp 磁気センサ
JP3352366B2 (ja) * 1997-09-17 2002-12-03 株式会社ヒロセチェリープレシジョン パルス信号発生装置
US6703830B2 (en) * 2002-02-18 2004-03-09 Phoenix America, Inc. Tunable magnetic device for use in a proximity sensor
US20040017187A1 (en) * 2002-07-24 2004-01-29 Van Ostrand Kent E. Magnetoresistive linear position sensor
US6737862B1 (en) * 2003-05-14 2004-05-18 Delphi Technologies, Inc. Magnetosensitive latch engagement detector for a mechanical fastening system
DE20315448U1 (de) * 2003-10-08 2003-12-18 Bernstein Ag Magnetisches Sensorsystem

Also Published As

Publication number Publication date
US7342394B2 (en) 2008-03-11
SE0401310L (sv) 2005-11-20
SE527102C2 (sv) 2005-12-20
JP2007538401A (ja) 2007-12-27
WO2005112054A1 (en) 2005-11-24
US20070040550A1 (en) 2007-02-22
SE0401310D0 (sv) 2004-05-19
EP1761937B1 (en) 2012-12-12
EP1761937A1 (en) 2007-03-14

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2158 DE 15/05/2012.