JP4425078B2 - エンコーダ - Google Patents
エンコーダ Download PDFInfo
- Publication number
- JP4425078B2 JP4425078B2 JP2004205198A JP2004205198A JP4425078B2 JP 4425078 B2 JP4425078 B2 JP 4425078B2 JP 2004205198 A JP2004205198 A JP 2004205198A JP 2004205198 A JP2004205198 A JP 2004205198A JP 4425078 B2 JP4425078 B2 JP 4425078B2
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- Japan
- Prior art keywords
- light
- moving direction
- light transmitting
- blocking
- scale plate
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 230000000903 blocking effect Effects 0.000 claims description 58
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000668842 Lepidosaphes gloverii Species 0.000 description 1
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Classifications
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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
- G01D5/36—Forming the light into pulses
-
- 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
- G01D5/34794—Optical encoders using the Vernier principle, i.e. incorporating two or more tracks having a (n, n+1, ...) relationship
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Description
Claims (4)
- 移動方向に沿った第1のライン上と第2のライン上とに渡って千鳥状に複数の光透過/遮断部が配置されたスケール板と、
前記光透過/遮断部に光を照射する光源装置と、
前記スケール板を挟んで前記光源装置と対向するように配置され、前記移動方向、及び前記移動方向に垂直な方向に複数の画素が2次元配列された受光領域を有して、前記移動方向、及び前記移動方向に垂直な方向のそれぞれについて入射光強度の1次元分布を示す光強度プロファイルデータを出力する光検出装置とを備え、
前記光透過/遮断部のそれぞれは、前記移動方向に垂直な方向において光の透過及び遮断のパターンが互いに異なっており、
前記受光領域の前記移動方向に沿った幅をWとし、前記第1のライン上と前記第2のライン上とに渡って隣り合う前記光透過/遮断部の前記移動方向に沿った距離をDとした場合に、W/2<D<Wの関係式を満たしていることを特徴とするエンコーダ。 - 前記光透過/遮断部のそれぞれは、前記スケール板に形成される光透過孔の数量、及び前記移動方向に垂直な方向における前記光透過孔の位置の相異によって、前記移動方向に垂直な方向において光の透過及び遮断のパターンが互いに異なっていることを特徴とする請求項1記載のエンコーダ。
- 前記スケール板は回転運動を行い、前記スケール板には、その回転方向を前記移動方向として複数の光透過/遮断部が配置されていることを特徴とする請求項1又は2記載のエンコーダ。
- 前記スケール板は直線運動を行い、前記スケール板には、その直線方向を前記移動方向として複数の光透過/遮断部が配置されていることを特徴とする請求項1又は2記載のエンコーダ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004205198A JP4425078B2 (ja) | 2004-07-12 | 2004-07-12 | エンコーダ |
EP05765578.9A EP1767904B1 (en) | 2004-07-12 | 2005-07-08 | Encoder |
KR1020067025532A KR101118882B1 (ko) | 2004-07-12 | 2005-07-08 | 인코더 |
US11/632,205 US7687765B2 (en) | 2004-07-12 | 2005-07-08 | Encoder including a two dimensional photo-detector having two signal processing sections for pixels in a first and a second direction |
PCT/JP2005/012674 WO2006006532A1 (ja) | 2004-07-12 | 2005-07-08 | エンコーダ |
CNB2005800215892A CN100453976C (zh) | 2004-07-12 | 2005-07-08 | 编码器 |
TW094123433A TW200606402A (en) | 2004-07-12 | 2005-07-11 | Encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004205198A JP4425078B2 (ja) | 2004-07-12 | 2004-07-12 | エンコーダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006029828A JP2006029828A (ja) | 2006-02-02 |
JP4425078B2 true JP4425078B2 (ja) | 2010-03-03 |
Family
ID=35783875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004205198A Expired - Fee Related JP4425078B2 (ja) | 2004-07-12 | 2004-07-12 | エンコーダ |
Country Status (7)
Country | Link |
---|---|
US (1) | US7687765B2 (ja) |
EP (1) | EP1767904B1 (ja) |
JP (1) | JP4425078B2 (ja) |
KR (1) | KR101118882B1 (ja) |
CN (1) | CN100453976C (ja) |
TW (1) | TW200606402A (ja) |
WO (1) | WO2006006532A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1816441B1 (en) * | 2004-10-04 | 2018-09-12 | Hamamatsu Photonics K.K. | Encoder |
TWI451664B (zh) * | 2009-03-13 | 2014-09-01 | Foxnum Technology Co Ltd | 編碼器組合 |
WO2011011633A2 (en) * | 2009-07-22 | 2011-01-27 | Atreo Medical, Inc. | Optical techniques for the measurement of chest compression depth and other parameters during cpr |
JP5968062B2 (ja) * | 2012-05-02 | 2016-08-10 | キヤノン株式会社 | 位置検出エンコーダおよびこれを用いた装置 |
JP6207154B2 (ja) | 2012-12-28 | 2017-10-04 | キヤノン株式会社 | スケール、変位検出装置、レンズ装置、撮像システム、および、組み立て装置 |
JP5877212B2 (ja) * | 2014-01-10 | 2016-03-02 | キヤノンプレシジョン株式会社 | エンコーダ、エンコーダを用いた装置およびエンコーダ演算プログラム |
CN104075742A (zh) * | 2014-07-02 | 2014-10-01 | 中国科学院长春光学精密机械与物理研究所 | 基于相移补偿技术的绝对式光电编码器的设计方法 |
US20200309890A1 (en) * | 2016-07-04 | 2020-10-01 | Philips Lighting Holding B.V. | System and method for providing a device access to sensor data |
CN109163743B (zh) * | 2018-07-13 | 2021-04-02 | 合肥工业大学 | 一种二维绝对位置测量传感器的编码及解码算法 |
CN110943591A (zh) * | 2020-01-14 | 2020-03-31 | 深圳市浩立能源科技有限公司 | 一种汽车开关磁阻电机 |
CN113216777A (zh) * | 2021-04-27 | 2021-08-06 | 上海创米科技有限公司 | 合页及门开合角度的检测方法 |
CN113295771A (zh) * | 2021-06-09 | 2021-08-24 | 国网河北省电力有限公司保定供电分公司 | 一种渗漏雨自动监控报警装置及方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414367A (en) * | 1981-09-30 | 1983-11-08 | Union Carbide Corporation | Curable molding compositions |
JPS5869216U (ja) * | 1981-11-02 | 1983-05-11 | 横河電機株式会社 | 光式物理量変換装置 |
GB8423086D0 (en) * | 1984-09-12 | 1984-10-17 | March A A C | Position sensor |
JPH06100482B2 (ja) * | 1985-07-03 | 1994-12-12 | 旭化成工業株式会社 | ロ−タリ−エンコ−ダ |
JPS62135723A (ja) * | 1985-12-10 | 1987-06-18 | Toshiba Corp | 変位検出装置 |
JPS63136722A (ja) * | 1986-11-28 | 1988-06-08 | Omron Tateisi Electronics Co | 光学式位置検出装置 |
US5068529A (en) * | 1988-12-22 | 1991-11-26 | Nikon Corporation | Absolute position detection encoder |
JPH0810145B2 (ja) * | 1989-07-28 | 1996-01-31 | オ−クマ株式会社 | 光学式エンコーダ及びその光学スケール |
US5396063A (en) * | 1992-06-08 | 1995-03-07 | Nikon Corporation | Objective replacing apparatus having objective position, displacement and address detecting means and microscope using it |
US5288993A (en) * | 1992-10-05 | 1994-02-22 | Logitech, Inc. | Cursor pointing device utilizing a photodetector array with target ball having randomly distributed speckles |
JPH0810145A (ja) | 1994-06-28 | 1996-01-16 | Matsushita Electric Ind Co Ltd | 炊飯器 |
JPH08178700A (ja) * | 1994-12-22 | 1996-07-12 | Topcon Corp | インクリメンタルエンコーダ |
JPH08210824A (ja) * | 1995-02-07 | 1996-08-20 | Canon Inc | 回転検出装置及び回転制御装置 |
JPH09145408A (ja) | 1995-11-22 | 1997-06-06 | Konica Corp | エンコーダ装置 |
US5965879A (en) * | 1997-05-07 | 1999-10-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for ultra-high-sensitivity, incremental and absolute optical encoding |
US6765195B1 (en) * | 2001-05-22 | 2004-07-20 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for two-dimensional absolute optical encoding |
EP1453098B1 (en) | 2001-12-05 | 2013-09-18 | Hamamatsu Photonics K.K. | Light detection device, imaging device and distant image acquisition device |
US7060968B1 (en) * | 2002-06-04 | 2006-06-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for optical encoding with compressible imaging |
-
2004
- 2004-07-12 JP JP2004205198A patent/JP4425078B2/ja not_active Expired - Fee Related
-
2005
- 2005-07-08 US US11/632,205 patent/US7687765B2/en not_active Expired - Fee Related
- 2005-07-08 WO PCT/JP2005/012674 patent/WO2006006532A1/ja active Application Filing
- 2005-07-08 CN CNB2005800215892A patent/CN100453976C/zh not_active Expired - Fee Related
- 2005-07-08 KR KR1020067025532A patent/KR101118882B1/ko not_active IP Right Cessation
- 2005-07-08 EP EP05765578.9A patent/EP1767904B1/en not_active Expired - Fee Related
- 2005-07-11 TW TW094123433A patent/TW200606402A/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI360643B (ja) | 2012-03-21 |
KR20070030814A (ko) | 2007-03-16 |
US20080106739A1 (en) | 2008-05-08 |
EP1767904A1 (en) | 2007-03-28 |
EP1767904A4 (en) | 2008-04-30 |
KR101118882B1 (ko) | 2012-03-19 |
EP1767904B1 (en) | 2014-12-03 |
CN100453976C (zh) | 2009-01-21 |
CN1977147A (zh) | 2007-06-06 |
WO2006006532A1 (ja) | 2006-01-19 |
US7687765B2 (en) | 2010-03-30 |
TW200606402A (en) | 2006-02-16 |
JP2006029828A (ja) | 2006-02-02 |
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