BR9611550A - Sensor de descolacamento e aparelho de captação e geração de fluxo magnético para um sensor de deslocamento - Google Patents

Sensor de descolacamento e aparelho de captação e geração de fluxo magnético para um sensor de deslocamento

Info

Publication number
BR9611550A
BR9611550A BR9611550-5A BR9611550A BR9611550A BR 9611550 A BR9611550 A BR 9611550A BR 9611550 A BR9611550 A BR 9611550A BR 9611550 A BR9611550 A BR 9611550A
Authority
BR
Brazil
Prior art keywords
sensor
displacement
target
displacement sensor
magnetic flux
Prior art date
Application number
BR9611550-5A
Other languages
English (en)
Inventor
John Patrick Dilger
Nile Kenton Dielschneider
Jerry Marvin Ceaser
Original Assignee
Fisher Controls Int
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 Fisher Controls Int filed Critical Fisher Controls Int
Publication of BR9611550A publication Critical patent/BR9611550A/pt

Links

Classifications

    • 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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/147—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 using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/775—Tapered profiles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

"SENSOR DE DESLOCAMENTO E APARELHO DE CAPTAçãO E GERAçãO DE FLUXO MAGNéTICO PARA UM SENSOR DE DESLOCAMENTO". Um sensor de deslocamento sente o deslocamento relativo entre os primeiro e segundo elementos e inclui um alojamento montado no primeiro elemento. Um dispositivo de ímã possuindo primeira e segunda pontas de haste é montado no alojamento. Um sensor de fluxo é montado no alojamento entre as primeira e segunda pontas de haste. Um alvo é montado no segundo elemento para formar um caminho de fluxo entre as primeira e segunda pontas de haste possuindo uma relutância que varia com o deslocamento entre os primeiro e segundo elementos. A disposição forma um primeiro caminho de fluxo de perda de relutância fixa através do sensor de fluxo e um caminho de fluxo primário através do alvo. Em uma forma o alvo possui uma superfície configurada para fornecer uma altura de espaço que varia com o deslocamento. Em outra forma o alvo possui uma superfície configurada para fornecer uma largura de alvo que varia com o deslocamento. O sensor pode ser utilizado diferencialmente pela disposição de dois desses sensores.
BR9611550-5A 1995-11-14 1996-11-12 Sensor de descolacamento e aparelho de captação e geração de fluxo magnético para um sensor de deslocamento BR9611550A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/558,689 US5670876A (en) 1995-11-14 1995-11-14 Magnetic displacement sensor including first and second flux paths wherein the first path has a fixed reluctance and a sensor disposed therein
PCT/US1996/018434 WO1997018441A1 (en) 1995-11-14 1996-11-12 Magnetic displacement sensor

Publications (1)

Publication Number Publication Date
BR9611550A true BR9611550A (pt) 1999-12-28

Family

ID=24230553

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9611550-5A BR9611550A (pt) 1995-11-14 1996-11-12 Sensor de descolacamento e aparelho de captação e geração de fluxo magnético para um sensor de deslocamento

Country Status (10)

Country Link
US (1) US5670876A (pt)
EP (1) EP0861417B1 (pt)
JP (1) JP2000500862A (pt)
CN (1) CN1129778C (pt)
AU (1) AU7736496A (pt)
BR (1) BR9611550A (pt)
DE (1) DE69638204D1 (pt)
HK (1) HK1016688A1 (pt)
MX (1) MX9803800A (pt)
WO (1) WO1997018441A1 (pt)

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US11002566B2 (en) 2007-06-27 2021-05-11 Brooks Automation, Inc. Position feedback for self bearing motor

Also Published As

Publication number Publication date
WO1997018441A1 (en) 1997-05-22
JP2000500862A (ja) 2000-01-25
EP0861417B1 (en) 2010-06-23
DE69638204D1 (de) 2010-08-05
HK1016688A1 (en) 1999-11-05
MX9803800A (es) 1998-09-30
CN1203660A (zh) 1998-12-30
AU7736496A (en) 1997-06-05
US5670876A (en) 1997-09-23
CN1129778C (zh) 2003-12-03
EP0861417A1 (en) 1998-09-02

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/11/1996, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved

Owner name: FISHER CONTROLS INTERNATIONAL LLC (US)

Free format text: ALTERADO DE: FISHER CONTROLS INTERNATIONAL, INC.

B25G Requested change of headquarter approved

Owner name: FISHER CONTROLS INTERNATIONAL LLC (US)

Free format text: SEDE ALTERADA CONFORME SOLICITADO NA PETICAO NO 070312/RJ DE 16/12/2003.

B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection