JPS6089713A - アブソリユ−ト式ポジシヨンエンコ−ダ - Google Patents

アブソリユ−ト式ポジシヨンエンコ−ダ

Info

Publication number
JPS6089713A
JPS6089713A JP19874483A JP19874483A JPS6089713A JP S6089713 A JPS6089713 A JP S6089713A JP 19874483 A JP19874483 A JP 19874483A JP 19874483 A JP19874483 A JP 19874483A JP S6089713 A JPS6089713 A JP S6089713A
Authority
JP
Japan
Prior art keywords
scale
image sensor
length
pitch
circuit
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.)
Granted
Application number
JP19874483A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0342611B2 (enrdf_load_stackoverflow
Inventor
Yasushi Oki
裕史 大木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP19874483A priority Critical patent/JPS6089713A/ja
Publication of JPS6089713A publication Critical patent/JPS6089713A/ja
Publication of JPH0342611B2 publication Critical patent/JPH0342611B2/ja
Granted legal-status Critical Current

Links

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
    • G01D5/36—Forming the light into pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP19874483A 1983-10-24 1983-10-24 アブソリユ−ト式ポジシヨンエンコ−ダ Granted JPS6089713A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19874483A JPS6089713A (ja) 1983-10-24 1983-10-24 アブソリユ−ト式ポジシヨンエンコ−ダ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19874483A JPS6089713A (ja) 1983-10-24 1983-10-24 アブソリユ−ト式ポジシヨンエンコ−ダ

Publications (2)

Publication Number Publication Date
JPS6089713A true JPS6089713A (ja) 1985-05-20
JPH0342611B2 JPH0342611B2 (enrdf_load_stackoverflow) 1991-06-27

Family

ID=16396245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19874483A Granted JPS6089713A (ja) 1983-10-24 1983-10-24 アブソリユ−ト式ポジシヨンエンコ−ダ

Country Status (1)

Country Link
JP (1) JPS6089713A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0247514A (ja) * 1988-07-08 1990-02-16 Parker Hannifin Corp 位置検出方法及び装置
JPH0267218U (enrdf_load_stackoverflow) * 1988-11-09 1990-05-22
JPH0372314U (enrdf_load_stackoverflow) * 1989-11-16 1991-07-22
EP2416126A1 (en) 2010-08-06 2012-02-08 Canon Kabushiki Kaisha Absolute encoder
EP2466267A1 (en) 2010-12-15 2012-06-20 Canon Kabushiki Kaisha Absolute rotary encoder
EP2466266A2 (en) 2010-12-15 2012-06-20 Canon Kabushiki Kaisha Absolute rotary encoder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0247514A (ja) * 1988-07-08 1990-02-16 Parker Hannifin Corp 位置検出方法及び装置
JPH0267218U (enrdf_load_stackoverflow) * 1988-11-09 1990-05-22
JPH0372314U (enrdf_load_stackoverflow) * 1989-11-16 1991-07-22
EP2416126A1 (en) 2010-08-06 2012-02-08 Canon Kabushiki Kaisha Absolute encoder
JP2012037392A (ja) * 2010-08-06 2012-02-23 Canon Inc アブソリュートエンコーダ
EP2466267A1 (en) 2010-12-15 2012-06-20 Canon Kabushiki Kaisha Absolute rotary encoder
EP2466266A2 (en) 2010-12-15 2012-06-20 Canon Kabushiki Kaisha Absolute rotary encoder
JP2012127818A (ja) * 2010-12-15 2012-07-05 Canon Inc アブソリュートロータリーエンコーダ
US8759747B2 (en) 2010-12-15 2014-06-24 Canon Kabushiki Kaisha Absolute rotary encoder
US8785838B2 (en) 2010-12-15 2014-07-22 Canon Kabushiki Kaisha Absolute rotary encoder

Also Published As

Publication number Publication date
JPH0342611B2 (enrdf_load_stackoverflow) 1991-06-27

Similar Documents

Publication Publication Date Title
EP0042179B1 (en) Encoder
EP0039082B1 (en) Method and apparatus for measuring the displacement between a code plate and a sensor array
GB2086039A (en) Interpolation in incremental measurement
JPH0125010B2 (enrdf_load_stackoverflow)
JPS6089713A (ja) アブソリユ−ト式ポジシヨンエンコ−ダ
JPS61182522A (ja) リニアスケ−ル測定装置
JPS63117214A (ja) 変位測定装置
JPS6020114A (ja) 測長器の表示装置
JP2732488B2 (ja) 測長または測角装置
JPH06174421A (ja) 測長あるいは測角装置の方法
JPH0143243B2 (enrdf_load_stackoverflow)
JPH0141925B2 (enrdf_load_stackoverflow)
SU779803A1 (ru) Устройство точного отсчета углоизмерительных приборов
SU1401273A1 (ru) Измеритель линейных перемещений
RU1772625C (ru) Оптико-электронное устройство дл измерени линейных перемещений
JP3031970B2 (ja) フィルタ回路
SU1693380A1 (ru) Фотоэлектрический преобразователь перемещени
SU855691A1 (ru) Устройство дл считывани графической информации
RU2220402C2 (ru) Устройство для измерения положения и перемещения объекта
SU742703A1 (ru) Устройство дл поверки стрелочных приборов
SU892210A1 (ru) Кодовый лимб теодолита и устройство дл декодировани отсчетов по лимбу
JPS6258448B2 (enrdf_load_stackoverflow)
JPH11325971A (ja) アブソリュートリニヤスケール
JPS6076611A (ja) エンコ−ダ
Hariharan et al. Moiré displacement transducer for N/C systems