BR9907585A - Sensor de posição rotativa e método de detecção de posição rotativa - Google Patents

Sensor de posição rotativa e método de detecção de posição rotativa

Info

Publication number
BR9907585A
BR9907585A BR9907585-7A BR9907585A BR9907585A BR 9907585 A BR9907585 A BR 9907585A BR 9907585 A BR9907585 A BR 9907585A BR 9907585 A BR9907585 A BR 9907585A
Authority
BR
Brazil
Prior art keywords
color
rotating position
rotor
led
light
Prior art date
Application number
BR9907585-7A
Other languages
English (en)
Inventor
Roger James Briggs
La Wrence Joseph Ryczek
Jean-Paul Corbier
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of BR9907585A publication Critical patent/BR9907585A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34784—Absolute encoders with analogue or digital scales with only analogue scales or both analogue and incremental scales

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

"SENSOR DE POSIçãO ROTATIVA E MéTODO DE DETECçãO DE POSIçãO ROTATIVA", sendo que um disco de rotor ou roda de cor recebida em um eixo a ser detectado tem uma faixa anelar de um material de filtro de duas cores (vermelho/verde) tendo um gradiente circunferencial oposto. Um placa de circuitos impressos em um lado axial do disco do rotor possui o LED de duas cores, emitindo luz para um refletor no lado axial oposto do disco do rotor. Alguma luz refletida do LED passa através do filtro que a transmite, de acordo com a quantidade de material de filtragem de cor única presente na estação de rotor particular, para um fotodetector na placa de circuitos. Outros raios da luz emitida são refletidos diretamente para um segundo detector para compensação ambiente. A quantidade de luz transmitida pelo filtro faz com que a corrente do detector varie a taxa de carga de um capacitor carregado em um nível de referência, e quando alcançado, o LED é mudado à outra das duas emissões de duas cores. O tempo necessário para carregar o capacitor no nível de referência determina a fração do ciclo de funcionamento do sinal de saída que pode ser correlacionado com os dados conhecidos no gradiente de cor para determinar a posição angular do rotor. Uma segunda roda de cor é indexada, ou engrenada para cima ou para baixo, como um integrador para contar o número de revoluções completas da roda de cor do eixo.
BR9907585-7A 1998-10-26 1999-10-26 Sensor de posição rotativa e método de detecção de posição rotativa BR9907585A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/179,020 US6194709B1 (en) 1998-10-26 1998-10-26 Rotary position sensor/transducer employing rotor having color filtering

Publications (1)

Publication Number Publication Date
BR9907585A true BR9907585A (pt) 2000-10-31

Family

ID=22654895

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907585-7A BR9907585A (pt) 1998-10-26 1999-10-26 Sensor de posição rotativa e método de detecção de posição rotativa

Country Status (4)

Country Link
US (1) US6194709B1 (pt)
EP (1) EP0997707A1 (pt)
JP (1) JP2000131041A (pt)
BR (1) BR9907585A (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2293878T3 (es) * 1999-09-28 2008-04-01 Snap-On Equipment Gmbh Maquina de equilibrado de ruedas para una rueda de automovil con codificador angular compacto.
DE10065240C2 (de) * 2000-12-27 2003-10-16 Valeo Schalter & Sensoren Gmbh Lenkwinkelmesseinrichtung
US6909212B2 (en) * 2003-02-27 2005-06-21 Asmo Co., Ltd. Motor having rotation sensor and manufacturing method thereof
US20050069234A1 (en) * 2003-09-29 2005-03-31 Takashi Kanai Motor with aerodynamic bearing
US7138623B2 (en) * 2004-12-13 2006-11-21 Magna Powertrain Usa, Inc. Power transfer device with contactless optical encoder and color reflective surface
US7465917B2 (en) * 2006-02-16 2008-12-16 Avago Technologies General Ip (Singapore) Pte. Ltd. Absolute encoder utilizing light of different wavelengths to reduce cross-talk
US7897907B1 (en) 2008-04-24 2011-03-01 The United States Of America As Represented By The Secretary Of The Navy System and method for increasing signal-to-noise ratio in optical-based sensor systems
JP6007131B2 (ja) 2013-03-01 2016-10-12 日立オートモティブシステムズ株式会社 操舵角センサおよびこれを用いた電動パワーステアリング装置
JP5821109B2 (ja) * 2013-06-17 2015-11-24 株式会社安川電機 エンコーダ付きモータ
US9664537B2 (en) * 2014-01-30 2017-05-30 Avago Technologies General Ip (Singapore) Pte. Ltd. System and assembly structure for aligning an encoder
CN109154514B (zh) * 2016-04-29 2021-09-03 蒂森克虏伯股份公司 用于机动车辆的电动助力转向系统的光学旋转角度传感器
JP6942758B2 (ja) * 2019-07-24 2021-09-29 ソフトバンク株式会社 測定装置、サーバ及びシステム
EP4043768A1 (en) * 2021-02-15 2022-08-17 Goodrich Corporation Valve position detection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430927B (sv) * 1976-02-14 1983-12-19 Kubota Ltd Indikeringsanordning for stegvis numerisk indikering av verdet hos en kontinuerligt varierbar fysisk storhet
JPS5855802A (ja) 1981-09-30 1983-04-02 Kawasaki Steel Corp 回転変位並びに直線移動変位検出装置
GB8519384D0 (en) 1985-08-01 1985-09-04 Lucas Ind Plc Position encoder
GB8531149D0 (en) 1985-12-18 1986-01-29 Smiths Industries Plc Optical transducers
US4947036A (en) 1986-10-03 1990-08-07 Conax Buffalo Corporation Self-monitoring optical sensor having a ratiometric output signal
US5216245A (en) * 1991-10-04 1993-06-01 General Motors Corporation Multi-color optical shaft position sensor
FR2735225B1 (fr) 1995-06-12 1997-09-05 Motorola Semiconducteurs Capteur de position optoelectronique et systeme de compensation pour un tel capteur

Also Published As

Publication number Publication date
US6194709B1 (en) 2001-02-27
EP0997707A1 (en) 2000-05-03
JP2000131041A (ja) 2000-05-12

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired