JPS57149914A - Method and device for position detection - Google Patents

Method and device for position detection

Info

Publication number
JPS57149914A
JPS57149914A JP3606681A JP3606681A JPS57149914A JP S57149914 A JPS57149914 A JP S57149914A JP 3606681 A JP3606681 A JP 3606681A JP 3606681 A JP3606681 A JP 3606681A JP S57149914 A JPS57149914 A JP S57149914A
Authority
JP
Japan
Prior art keywords
signals
photodiodes
position detection
phase
slit 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.)
Granted
Application number
JP3606681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6131409B2 (enrdf_load_stackoverflow
Inventor
Yasuo Ebara
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP3606681A priority Critical patent/JPS57149914A/ja
Publication of JPS57149914A publication Critical patent/JPS57149914A/ja
Publication of JPS6131409B2 publication Critical patent/JPS6131409B2/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
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
JP3606681A 1981-03-13 1981-03-13 Method and device for position detection Granted JPS57149914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3606681A JPS57149914A (en) 1981-03-13 1981-03-13 Method and device for position detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3606681A JPS57149914A (en) 1981-03-13 1981-03-13 Method and device for position detection

Publications (2)

Publication Number Publication Date
JPS57149914A true JPS57149914A (en) 1982-09-16
JPS6131409B2 JPS6131409B2 (enrdf_load_stackoverflow) 1986-07-19

Family

ID=12459342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3606681A Granted JPS57149914A (en) 1981-03-13 1981-03-13 Method and device for position detection

Country Status (1)

Country Link
JP (1) JPS57149914A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6255511A (ja) * 1985-09-05 1987-03-11 Sharp Corp ロ−タリ−エンコ−ダ
US4698828A (en) * 1985-02-28 1987-10-06 Nissan Motor Co., Ltd. Position and direction of motion sensing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698828A (en) * 1985-02-28 1987-10-06 Nissan Motor Co., Ltd. Position and direction of motion sensing system
JPS6255511A (ja) * 1985-09-05 1987-03-11 Sharp Corp ロ−タリ−エンコ−ダ

Also Published As

Publication number Publication date
JPS6131409B2 (enrdf_load_stackoverflow) 1986-07-19

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