GB201810421D0 - Displacement encoder - Google Patents

Displacement encoder

Info

Publication number
GB201810421D0
GB201810421D0 GBGB1810421.6A GB201810421A GB201810421D0 GB 201810421 D0 GB201810421 D0 GB 201810421D0 GB 201810421 A GB201810421 A GB 201810421A GB 201810421 D0 GB201810421 D0 GB 201810421D0
Authority
GB
United Kingdom
Prior art keywords
displacement encoder
encoder
displacement
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
GBGB1810421.6A
Other versions
GB2574900B (en
GB2574900A (en
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.)
Mitutoyo Corp
Original Assignee
Mitutoyo Corp
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
Priority claimed from US16/012,064 external-priority patent/US10274344B2/en
Application filed by Mitutoyo Corp filed Critical Mitutoyo Corp
Publication of GB201810421D0 publication Critical patent/GB201810421D0/en
Publication of GB2574900A publication Critical patent/GB2574900A/en
Application granted granted Critical
Publication of GB2574900B publication Critical patent/GB2574900B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01D5/347—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
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • 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
    • G01D5/34746—Linear 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
    • G01D5/26—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
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
GB1810421.6A 2018-06-19 2018-06-26 Displacement encoder Active GB2574900B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16/012,064 US10274344B2 (en) 2016-12-27 2018-06-19 Displacement encoder

Publications (3)

Publication Number Publication Date
GB201810421D0 true GB201810421D0 (en) 2018-08-08
GB2574900A GB2574900A (en) 2019-12-25
GB2574900B GB2574900B (en) 2022-06-01

Family

ID=68724843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1810421.6A Active GB2574900B (en) 2018-06-19 2018-06-26 Displacement encoder

Country Status (4)

Country Link
JP (1) JP7063743B2 (en)
CN (1) CN110617844B (en)
DE (1) DE102018210382A1 (en)
GB (1) GB2574900B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7532176B2 (en) 2020-05-08 2024-08-13 キヤノン株式会社 Optical Encoder and Control Device
JP7474186B2 (en) * 2020-11-30 2024-04-24 株式会社ミツトヨ Photoelectric Rotary Encoder
JP2024053373A (en) 2022-10-03 2024-04-15 株式会社ミツトヨ Optical encoder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856844A (en) 1971-11-17 1973-08-09
JP2619566B2 (en) 1990-11-20 1997-06-11 オ−クマ株式会社 Optical position detector
JP3218657B2 (en) * 1991-12-04 2001-10-15 キヤノン株式会社 Rotary encoder
JPH08219812A (en) 1995-02-15 1996-08-30 Canon Inc Device and scale for detecting displacement information, and drive control device using it
JP4372877B2 (en) 1999-01-13 2009-11-25 オリンパス株式会社 Optical displacement sensor
JP4588227B2 (en) 2000-02-03 2010-11-24 株式会社ミツトヨ Displacement measuring device
JP2002296075A (en) 2001-04-02 2002-10-09 Canon Inc Optical encoder
JP2004309366A (en) 2003-04-09 2004-11-04 Sankyo Seiki Mfg Co Ltd Position detecting device
JP5679643B2 (en) 2009-09-11 2015-03-04 キヤノン株式会社 Optical encoder
CN102223046B (en) * 2010-04-19 2013-10-09 爱三工业株式会社 Position sensor
EP3045870B1 (en) * 2011-11-24 2017-12-27 Toyota Jidosha Kabushiki Kaisha Rotational-angle detection device and electric power-steering device provided with rotational-angle detection device
JP5891921B2 (en) 2012-04-16 2016-03-23 富士通株式会社 Displacement measuring device, displacement measuring method, and displacement measuring program
JP2015078861A (en) 2013-10-16 2015-04-23 キヤノン株式会社 Fringe scan light reception module, interference measurement tool, encoder and interference type displacement measurement tool
JP6883939B2 (en) 2015-09-14 2021-06-09 株式会社ミツトヨ Photoelectric encoder
JP6400036B2 (en) * 2016-03-14 2018-10-03 キヤノン株式会社 Position detection device, machine tool, and exposure device
US10077991B2 (en) * 2016-09-27 2018-09-18 Mitutoyo Corporation Optical encoder configured to mitigate undesired interfering light components

Also Published As

Publication number Publication date
GB2574900B (en) 2022-06-01
JP7063743B2 (en) 2022-05-09
JP2019219347A (en) 2019-12-26
CN110617844A (en) 2019-12-27
CN110617844B (en) 2022-10-11
DE102018210382A1 (en) 2019-12-19
GB2574900A (en) 2019-12-25

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