WO2007132602A1 - Codeur optique et moteur équipé d'un codeur - Google Patents

Codeur optique et moteur équipé d'un codeur Download PDF

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Publication number
WO2007132602A1
WO2007132602A1 PCT/JP2007/057676 JP2007057676W WO2007132602A1 WO 2007132602 A1 WO2007132602 A1 WO 2007132602A1 JP 2007057676 W JP2007057676 W JP 2007057676W WO 2007132602 A1 WO2007132602 A1 WO 2007132602A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving element
light receiving
light
encoder
element array
Prior art date
Application number
PCT/JP2007/057676
Other languages
English (en)
Japanese (ja)
Inventor
Yasushi Yoshida
Yuji Arinaga
Original Assignee
Kabushiki Kaisha Yaskawa Denki
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 Kabushiki Kaisha Yaskawa Denki filed Critical Kabushiki Kaisha Yaskawa Denki
Publication of WO2007132602A1 publication Critical patent/WO2007132602A1/fr

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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
    • G01D5/26—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
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/22—Optical devices

Definitions

  • the light source 1 can be an LED or a semiconductor laser.
  • an optical component such as a collimator lens or a cylindrical lens may be added to the light emitting portion.
  • the light receiving element array is arranged within a directivity angle that can obtain sufficient light intensity using not only parallel light but also diffused light. It is possible.
  • the light emitted from the light source 1 passes through the rotating disk 2 and is reflected by the reflecting portion 5 of the rotating disk 2.
  • the light reflected by the reflector 5 passes through the code pattern 4 formed on the surface of the rotating disk 2 and enters the light receiving element array 3.
  • the light receiving element array 3 converts the received light quantity into an electrical signal. Electrical signal output from light receiving element array 3 Is converted into a position signal by a signal processing circuit (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)

Abstract

La présente invention concerne un codeur optique qui produit un signal de détection de bon rapport signal/bruit. Un motif de code de type de transmission (4) est formé à la surface d'un disque rotatif (2) et une partie réfléchissante (5) est formée à l'arrière du disque (2). De la lumière émise d'une source lumineuse (1) passe à travers le disque rotatif (2) avant d'être réfléchie sur la partie réfléchissante (5) du disque rotatif (2). La lumière réfléchie sur la partie réfléchissante (5) passe par une échelle (4) à la surface du disque rotatif (2) et entre en contact avec une matrice d'éléments récepteurs de lumière. Cette matrice (3) convertit la quantité de lumière reçue en signal électrique. Un signal électrique émis à partir de la matrice (3) est converti en signal de position par un circuit de traitement de signal (pas représenté).
PCT/JP2007/057676 2006-05-12 2007-04-05 Codeur optique et moteur équipé d'un codeur WO2007132602A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006134031 2006-05-12
JP2006-134031 2006-05-12

Publications (1)

Publication Number Publication Date
WO2007132602A1 true WO2007132602A1 (fr) 2007-11-22

Family

ID=38693703

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/057676 WO2007132602A1 (fr) 2006-05-12 2007-04-05 Codeur optique et moteur équipé d'un codeur

Country Status (2)

Country Link
TW (1) TW200817653A (fr)
WO (1) WO2007132602A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198190A (ja) * 1982-05-12 1983-11-18 Matsushita Electric Ind Co Ltd リニアモ−タ装置
JPS62156823U (fr) * 1986-03-28 1987-10-05
JPS6363918A (ja) * 1986-09-04 1988-03-22 Fujitsu Ltd 光学式位置検出方式
JPH06249676A (ja) * 1993-02-23 1994-09-09 Sony Corp 絶対位置検出装置
JPH08210814A (ja) * 1994-10-12 1996-08-20 Canon Inc 光学式変位測定装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198190A (ja) * 1982-05-12 1983-11-18 Matsushita Electric Ind Co Ltd リニアモ−タ装置
JPS62156823U (fr) * 1986-03-28 1987-10-05
JPS6363918A (ja) * 1986-09-04 1988-03-22 Fujitsu Ltd 光学式位置検出方式
JPH06249676A (ja) * 1993-02-23 1994-09-09 Sony Corp 絶対位置検出装置
JPH08210814A (ja) * 1994-10-12 1996-08-20 Canon Inc 光学式変位測定装置

Also Published As

Publication number Publication date
TW200817653A (en) 2008-04-16

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