JP2008014665A - 変位検出エンコーダ - Google Patents
変位検出エンコーダ Download PDFInfo
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- JP2008014665A JP2008014665A JP2006183560A JP2006183560A JP2008014665A JP 2008014665 A JP2008014665 A JP 2008014665A JP 2006183560 A JP2006183560 A JP 2006183560A JP 2006183560 A JP2006183560 A JP 2006183560A JP 2008014665 A JP2008014665 A JP 2008014665A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 16
- 238000012937 correction Methods 0.000 abstract description 5
- 238000004364 calculation method Methods 0.000 description 10
- 238000012795 verification Methods 0.000 description 7
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- 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
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- 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
- G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Abstract
【解決手段】位置情報を含む位置コードが備えられたスケールと、このスケールに対して相対移動可能に配設されると共に、前記スケールに備えられた前記位置コードの少なくとも一部を検出する検出部と、この検出部で検出された位置コードの一部を処理して、位置情報を出力する処理部と、を備えた変位検出エンコーダにおいて、前記検出された位置コードについて、位置コードを生成する位置コード生成手段で評価して、誤り情報の有無を検出する。
【選択図】図6
Description
20…発光素子
22…レンズ
24…受光素子アレイ
30…信号処理装置
38…誤り検出・訂正回路
40…ABS位置検出回路
Claims (6)
- 位置情報を含む位置コードが備えられたスケールと、このスケールに対して相対移動可能に配設されると共に、前記スケールに備えられた前記位置コードの少なくとも一部を検出する検出部と、この検出部で検出された位置コードの一部を処理して、位置情報を出力する処理部と、を備えた変位検出エンコーダにおいて、
前記検出された位置コードについて、位置コードを生成する位置コード生成手段で評価して、誤り情報の有無を検出することを特徴とする変位検出エンコーダ。 - 前記位置コードは、擬似ランダムコードを含むことを特徴とする請求項1記載の変位検出エンコーダ。
- 前記位置コード生成手段は、前記擬似ランダムコードの生成式を含むことを特徴とする請求項2記載の変位検出エンコーダ。
- 前記位置コード生成手段は、位置情報と位置コードとの対応テーブルを備えたものであることを特徴とする請求項1記載の変位検出エンコーダ。
- 前記誤り情報の有無を検出した結果に基づいて、検出した誤り情報を除去することを特徴とする請求項1乃至4のいずれかに記載の変位検出エンコーダ。
- 前記誤り情報の有無を検出した結果に基づいて、検出した誤り情報を訂正することを特徴とする請求項1乃至4のいずれかに記載の変位検出エンコーダ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006183560A JP5021244B2 (ja) | 2006-07-03 | 2006-07-03 | 変位検出エンコーダ |
US11/819,093 US7565256B2 (en) | 2006-07-03 | 2007-06-25 | Displacement detecting encoder |
CN2007101263305A CN101101223B (zh) | 2006-07-03 | 2007-06-29 | 位移检测编码器 |
EP07012953A EP1876424B1 (en) | 2006-07-03 | 2007-07-02 | Displacement detecting encoder |
DE602007007157T DE602007007157D1 (de) | 2006-07-03 | 2007-07-02 | Kodierer zur Verschiebungsbestimmung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006183560A JP5021244B2 (ja) | 2006-07-03 | 2006-07-03 | 変位検出エンコーダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008014665A true JP2008014665A (ja) | 2008-01-24 |
JP5021244B2 JP5021244B2 (ja) | 2012-09-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006183560A Active JP5021244B2 (ja) | 2006-07-03 | 2006-07-03 | 変位検出エンコーダ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7565256B2 (ja) |
EP (1) | EP1876424B1 (ja) |
JP (1) | JP5021244B2 (ja) |
CN (1) | CN101101223B (ja) |
DE (1) | DE602007007157D1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2312273A2 (en) | 2009-09-11 | 2011-04-20 | Mitutoyo Corporation | Displacement detector, displacement detection method and computer program product |
JP2015206688A (ja) * | 2014-04-21 | 2015-11-19 | キヤノン株式会社 | アブソリュートエンコーダ |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5203024B2 (ja) | 2008-04-15 | 2013-06-05 | 株式会社ミツトヨ | 絶対位置測長型エンコーダ |
CN101592468B (zh) * | 2009-06-25 | 2011-08-17 | 广州中国科学院工业技术研究院 | 伪随机码位移传感器的环形寻址方法及其*** |
CN101782405B (zh) * | 2010-01-26 | 2013-04-10 | 中国科学院光电技术研究所 | 一种基于伪随机编码位移传感器的硬件实时校验方法及其*** |
CN103528612B (zh) * | 2013-10-26 | 2017-01-11 | 连云港杰瑞电子有限公司 | 一种提高绝对式旋转编码器分辨率的方法 |
JP6634249B2 (ja) * | 2015-09-14 | 2020-01-22 | 株式会社ミツトヨ | 絶対位置検出型光電式エンコーダ |
US10249116B1 (en) * | 2018-03-12 | 2019-04-02 | Mapsted Corp. | Method and system for mobile device localization-based access |
JP7252809B2 (ja) * | 2019-03-28 | 2023-04-05 | 株式会社ミツトヨ | 光電式エンコーダおよび光電式エンコーダにおける演算方法 |
CN110954129A (zh) * | 2019-12-19 | 2020-04-03 | 北京猎户星空科技有限公司 | 一种里程计数据的确定方法、装置、设备及介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04131713A (ja) * | 1990-09-25 | 1992-05-06 | Nikon Corp | センサ続み誤りの検出および訂正が可能な1トラック型アブソリュート・エンコーダ |
JP2001296145A (ja) * | 2000-02-10 | 2001-10-26 | Okuma Corp | アブソリュートエンコーダ |
JP2002228489A (ja) * | 2001-01-30 | 2002-08-14 | Sokkia Co Ltd | アブソリュートエンコーダ用ディスク |
Family Cites Families (10)
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---|---|---|---|---|
JPS56153212A (en) * | 1980-04-30 | 1981-11-27 | Toshiba Corp | Encoder |
US4733069A (en) * | 1986-02-14 | 1988-03-22 | Optec Co., Ltd. | Position encoder using a laser scan beam |
JPS63247615A (ja) * | 1987-04-02 | 1988-10-14 | Matsushita Electric Ind Co Ltd | 位置検出方法及びその装置 |
US5418362A (en) * | 1993-05-27 | 1995-05-23 | Lusby; Brett L. | Encoder for determining absolute linear and rotational positions |
EP0729013B1 (en) * | 1995-02-21 | 2002-07-17 | Canon Kabushiki Kaisha | Displacement detection apparatus and drive control apparatus using the same |
US6642884B2 (en) * | 2000-05-08 | 2003-11-04 | Sigtec Navigation Pty Ltd. | Satellite-based positioning system receiver for weak signal operation |
US6686585B2 (en) * | 2001-09-19 | 2004-02-03 | Microe Systems Corporation | Position encoder with scale calibration |
DE10244547B4 (de) | 2002-09-25 | 2010-11-11 | Dr. Johannes Heidenhain Gmbh | Verfahren und Positionsmesseinrichtung zur Bestimmung einer absoluten Position |
US7053362B2 (en) * | 2003-05-02 | 2006-05-30 | Mitutoyo Corporation | Absolute position miniature grating encoder readhead using fiber optic receiver channels |
JP4586677B2 (ja) * | 2005-08-24 | 2010-11-24 | 富士ゼロックス株式会社 | 画像形成装置 |
-
2006
- 2006-07-03 JP JP2006183560A patent/JP5021244B2/ja active Active
-
2007
- 2007-06-25 US US11/819,093 patent/US7565256B2/en active Active
- 2007-06-29 CN CN2007101263305A patent/CN101101223B/zh active Active
- 2007-07-02 EP EP07012953A patent/EP1876424B1/en active Active
- 2007-07-02 DE DE602007007157T patent/DE602007007157D1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04131713A (ja) * | 1990-09-25 | 1992-05-06 | Nikon Corp | センサ続み誤りの検出および訂正が可能な1トラック型アブソリュート・エンコーダ |
JP2001296145A (ja) * | 2000-02-10 | 2001-10-26 | Okuma Corp | アブソリュートエンコーダ |
JP2002228489A (ja) * | 2001-01-30 | 2002-08-14 | Sokkia Co Ltd | アブソリュートエンコーダ用ディスク |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2312273A2 (en) | 2009-09-11 | 2011-04-20 | Mitutoyo Corporation | Displacement detector, displacement detection method and computer program product |
JP2015206688A (ja) * | 2014-04-21 | 2015-11-19 | キヤノン株式会社 | アブソリュートエンコーダ |
Also Published As
Publication number | Publication date |
---|---|
CN101101223A (zh) | 2008-01-09 |
US20080015805A1 (en) | 2008-01-17 |
DE602007007157D1 (de) | 2010-07-29 |
JP5021244B2 (ja) | 2012-09-05 |
EP1876424A3 (en) | 2008-05-14 |
EP1876424B1 (en) | 2010-06-16 |
US7565256B2 (en) | 2009-07-21 |
EP1876424A2 (en) | 2008-01-09 |
CN101101223B (zh) | 2012-04-11 |
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