JP5956207B2 - エンコーダ - Google Patents
エンコーダ Download PDFInfo
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- JP5956207B2 JP5956207B2 JP2012062693A JP2012062693A JP5956207B2 JP 5956207 B2 JP5956207 B2 JP 5956207B2 JP 2012062693 A JP2012062693 A JP 2012062693A JP 2012062693 A JP2012062693 A JP 2012062693A JP 5956207 B2 JP5956207 B2 JP 5956207B2
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- 238000001514 detection method Methods 0.000 claims description 100
- 230000003287 optical effect Effects 0.000 claims description 49
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
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
- G01D5/54—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 means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
-
- 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
-
- 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
-
- 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
-
- 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
- G01D5/3473—Circular or rotary encoders
-
- 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
- G01D5/54—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 means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
- G01D5/56—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 means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48 using electric or magnetic means
-
- 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
- G01D5/54—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 means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
- G01D5/58—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 means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48 using optical means, i.e. using infrared, visible or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
本実施形態のエンコーダ100は、光源50から照射され回転ディスク20および透遮光部材40の光学パターン30を透過した光を光検出部60にて受光し、デジタルデータとして検出する透過型のエンコーダである。また、本実施形態のエンコーダ100は、回転ディスク20の回転中心に設けられた磁石70の磁気パターンを磁気検出部80にてデジタルデータとして検出する。そして演算部90が、光検出部60のデジタルデータに基づいて、磁気検出部80のデジタルデータを補正することにより、検出精度の良いエンコーダ100を提供できるようになる。
再び図1を参照して、本実施形態のエンコーダ100の動作について説明する。
20 回転ディスク、
21 ディスク面、
30、31 光学パターン、
30a、31a 透光部、
30b、31b 遮光部、
40 透遮光部材(固定マスク)、
50 光源、
60 光検出部、
70 磁石、
80 磁気検出部、
90 演算部、
100 エンコーダ。
Claims (8)
- 回転方向に透光部と遮光部とを交互に有するグレイコード光学パターンが径方向に複数形成された回転ディスクと、
前記回転ディスクの各グレイコード光学パターンに対峙する透光部と遮光部とを有する光学パターンが形成された透遮光部材と、
前記回転ディスクのグレイコード光学パターンおよび前記透遮光部材の光学パターンに光を照射する光源と、
前記回転ディスクおよび前記透遮光部材の透光部を通過した光を受光し前記回転ディスクの回転位置に応じたデジタルデータを出力する光検出部と、
前記回転ディスクの回転中心部に設けられ、磁極の配置により磁気パターンを形成する磁石と、
前記磁気パターンを検出し前記回転ディスクの回転位置に応じたデジタルデータを出力する磁気検出部と、
前記磁気検出部および前記光検出部のデジタルデータを用いて前記回転ディスクの回転角度を求める演算部と、を有し、
前記光検出部は、前記回転ディスクの回転中において、該回転ディスクおよび前記透遮光部材の透光部を通過した光を受光して正弦波のアナログデータを出力し、
前記演算部は、前記光検出部から出力されるアナログデータを参照して検出誤差を補正し、前記回転ディスクの回転角度を求めることを特徴とするエンコーダ。 - 前記透遮光部材は、前記回転ディスクのディスク面と間隔を空けて対向された固定マスクであることを特徴とする請求項1に記載のエンコーダ。
- 前記透遮光部材は、前記光検出部に一体的に形成されていることを特徴とする請求項1に記載のエンコーダ。
- 前記演算部は、前記光検出部のデジタルデータに基づいて、前記磁気検出部のデジタルデータを補正することを特徴とする請求項1から3のいずれか1項に記載のエンコーダ。
- 前記光検出部は分割された受光部を有し、各受光部は前記回転ディスクの一回転における周期が異なる複数のビット/回転のグレイコードのデジタルデータを出力し、
前記磁気検出部はデジタルデータを出力することを特徴とする請求項1から4のいずれか1項に記載のエンコーダ。 - 前記演算部は、前記各検出部のデジタルデータを比較して、前記回転ディスクの回転角度の検出誤差を補正することを特徴とする請求項5に記載のエンコーダ。
- 前記演算部は、前記磁気検出部の1回転データをカウントすることにより、前記回転ディスクの回転数を求めることを特徴とする請求項1から6のいずれか1項に記載のエンコーダ。
- 前記演算部は、正弦波アナログデータに基づいて桁上げ判定もしくは桁下げ判定して、前記回転ディスクの回転数を求めることを特徴とする請求項1に記載のエンコーダ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012062693A JP5956207B2 (ja) | 2012-03-19 | 2012-03-19 | エンコーダ |
CN2013100729591A CN103323039A (zh) | 2012-03-19 | 2013-03-07 | 编码器 |
KR1020130028667A KR20130106315A (ko) | 2012-03-19 | 2013-03-18 | 인코더 |
US13/846,048 US8896821B2 (en) | 2012-03-19 | 2013-03-18 | Encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012062693A JP5956207B2 (ja) | 2012-03-19 | 2012-03-19 | エンコーダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013195238A JP2013195238A (ja) | 2013-09-30 |
JP5956207B2 true JP5956207B2 (ja) | 2016-07-27 |
Family
ID=49157318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012062693A Expired - Fee Related JP5956207B2 (ja) | 2012-03-19 | 2012-03-19 | エンコーダ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8896821B2 (ja) |
JP (1) | JP5956207B2 (ja) |
KR (1) | KR20130106315A (ja) |
CN (1) | CN103323039A (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103983290B (zh) * | 2014-05-06 | 2016-05-11 | 上海精浦机电有限公司 | 复合型绝对值编码器 |
JP6209486B2 (ja) * | 2014-05-13 | 2017-10-04 | 双葉電子工業株式会社 | 角度検出装置および角度検出装置を利用したサーボ装置 |
CN103983291B (zh) * | 2014-05-26 | 2017-04-12 | 四川科奥达技术有限公司 | 一种光磁编码器的编码方法 |
DE102014116827B4 (de) * | 2014-11-18 | 2016-07-14 | Ma Lighting Technology Gmbh | Doppelwellenencoder |
US10113888B2 (en) | 2015-03-03 | 2018-10-30 | Canon Kabushiki Kaisha | Position detection apparatus, apparatus including the same and position detection method |
CN104827349A (zh) * | 2015-05-21 | 2015-08-12 | 遵义市节庆机电有限责任公司 | 机床位置检测装置 |
WO2018025261A1 (en) * | 2016-08-02 | 2018-02-08 | Servosense (Smc) Ltd. | High resolution absolute encoder |
JP6769799B2 (ja) * | 2016-09-21 | 2020-10-14 | 日本電産サンキョー株式会社 | ロータリエンコーダ、およびロータリエンコーダの絶対角度位置検出方法 |
US11308294B2 (en) * | 2016-10-27 | 2022-04-19 | Datalogic Usa, Inc. | Data reader with view separation optics |
CN106570549A (zh) * | 2016-10-28 | 2017-04-19 | 网易(杭州)网络有限公司 | 一种编码图案的生成、识别方法及装置 |
JP6428817B2 (ja) * | 2017-03-22 | 2018-11-28 | 株式会社安川電機 | モータ制御システム、制御方法、エンコーダ及びモータ制御装置 |
WO2019039344A1 (ja) * | 2017-08-22 | 2019-02-28 | 国立研究開発法人産業技術総合研究所 | エンコーダ |
TWI680648B (zh) * | 2018-12-26 | 2019-12-21 | 財團法人工業技術研究院 | 編碼盤、檢光器、光學絕對式旋轉編碼器及編碼值輸出、偵錯與除錯的方法 |
CN110260900B (zh) * | 2019-07-26 | 2020-05-19 | 浙江禾川科技股份有限公司 | 混合编码器的位置确定方法、装置、设备及可读存储介质 |
KR102200971B1 (ko) * | 2019-12-27 | 2021-01-11 | 알에스오토메이션주식회사 | 광학 엔코더 |
CN111321058B (zh) * | 2020-03-06 | 2023-06-27 | 成都博奥晶芯生物科技有限公司 | 一种微流体芯片光学定位码盘、装置及方法 |
JP7284923B2 (ja) * | 2021-04-09 | 2023-06-01 | 株式会社安川電機 | エンコーダ、サーボモータ、サーボシステム |
US20220373360A1 (en) * | 2021-05-19 | 2022-11-24 | Novanta Corporation | Position encoder with fusion of different sensor types |
CN114993356A (zh) * | 2022-04-21 | 2022-09-02 | 浙江锐鹰传感技术有限公司 | 一种绝对值编码器及该编码器的位置检测方法 |
CN114769973B (zh) * | 2022-06-01 | 2023-07-07 | 中国核工业第五建设有限公司 | 自动焊接设备 |
Family Cites Families (10)
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US4654636A (en) * | 1983-07-15 | 1987-03-31 | Lockheed Missiles & Space Company, Inc. | Displacement measuring apparatus |
JPH0641854B2 (ja) * | 1986-04-25 | 1994-06-01 | 株式会社安川電機 | 多回転アブソリユ−ト式エンコ−ダ |
JP2521747B2 (ja) * | 1987-03-24 | 1996-08-07 | 日本電気精器株式会社 | スリツプ補正回路付きアナログ/デイジタル変換回路 |
JPH1038615A (ja) * | 1996-07-22 | 1998-02-13 | Omron Corp | 多回転アブソリュートエンコーダ |
JPH11325969A (ja) * | 1998-03-18 | 1999-11-26 | Matsushita Electric Ind Co Ltd | 変位検出装置 |
JP2005127762A (ja) * | 2003-10-22 | 2005-05-19 | Canon Inc | センサ信号処理装置 |
JP2008014799A (ja) * | 2006-07-06 | 2008-01-24 | Yaskawa Electric Corp | 絶対値エンコーダ装置 |
JP2009121958A (ja) * | 2007-11-15 | 2009-06-04 | Mitsuba Corp | ロータリエンコーダ、およびブラシレスモータ |
JP2009232261A (ja) * | 2008-03-24 | 2009-10-08 | Akebono Brake Ind Co Ltd | ホールic |
JP5111243B2 (ja) | 2008-06-05 | 2013-01-09 | 三菱電機株式会社 | アブソリュートエンコーダ |
-
2012
- 2012-03-19 JP JP2012062693A patent/JP5956207B2/ja not_active Expired - Fee Related
-
2013
- 2013-03-07 CN CN2013100729591A patent/CN103323039A/zh active Pending
- 2013-03-18 US US13/846,048 patent/US8896821B2/en not_active Expired - Fee Related
- 2013-03-18 KR KR1020130028667A patent/KR20130106315A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US20130242289A1 (en) | 2013-09-19 |
CN103323039A (zh) | 2013-09-25 |
JP2013195238A (ja) | 2013-09-30 |
KR20130106315A (ko) | 2013-09-27 |
US8896821B2 (en) | 2014-11-25 |
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