JPS5794614A - Phase difference setting method of plural groups of pulse trains of rotary encoder - Google Patents

Phase difference setting method of plural groups of pulse trains of rotary encoder

Info

Publication number
JPS5794614A
JPS5794614A JP17070980A JP17070980A JPS5794614A JP S5794614 A JPS5794614 A JP S5794614A JP 17070980 A JP17070980 A JP 17070980A JP 17070980 A JP17070980 A JP 17070980A JP S5794614 A JPS5794614 A JP S5794614A
Authority
JP
Japan
Prior art keywords
phase difference
pulse trains
slit
plate
slits
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.)
Pending
Application number
JP17070980A
Other languages
Japanese (ja)
Inventor
Shiro Kondo
Shuichi Oota
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17070980A priority Critical patent/JPS5794614A/en
Publication of JPS5794614A publication Critical patent/JPS5794614A/en
Pending 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)

Abstract

PURPOSE:To easily locate a component element, and also to set 2 groups of pulse trains having a desired phase difference, by using only one light emission element, and setting its optical axis to an almost intermediate position of 2 groups of slits of a fixed slit plate. CONSTITUTION:One light emission element is placed on the upper side of slits 11 and 12, and light beams which are considered to be parallel rays substantially are projected to the slits 11 and 12. In this case, when a center O10 of a slit array circular arc of a fixed slit plate 10 on which the slits 11 and 12 have been formed so that the phase difference becomes 90 deg. is made to conform with a center O0 of a slit array circular arc of a rotary plate 1, and the slit 2 is also formed exactly, 2 groups of pulse trains (a), (b) whose phase difference is 90 deg. are obtained. The phase difference of the pulse trains (a), (b) can be varied by rotating the plate 10 and varying an inclination of the slit, and a desired phase difference can be set. In this regard, the plate 10 is connected to a photodetecting element holder 40, and the holder 40 can be turned by a screw 43.
JP17070980A 1980-12-03 1980-12-03 Phase difference setting method of plural groups of pulse trains of rotary encoder Pending JPS5794614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17070980A JPS5794614A (en) 1980-12-03 1980-12-03 Phase difference setting method of plural groups of pulse trains of rotary encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17070980A JPS5794614A (en) 1980-12-03 1980-12-03 Phase difference setting method of plural groups of pulse trains of rotary encoder

Publications (1)

Publication Number Publication Date
JPS5794614A true JPS5794614A (en) 1982-06-12

Family

ID=15909938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17070980A Pending JPS5794614A (en) 1980-12-03 1980-12-03 Phase difference setting method of plural groups of pulse trains of rotary encoder

Country Status (1)

Country Link
JP (1) JPS5794614A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059110U (en) * 1983-09-29 1985-04-24 株式会社デンソー Rotation angle detection device
WO2023243303A1 (en) * 2022-06-16 2023-12-21 多摩川精機株式会社 Rotary encoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059110U (en) * 1983-09-29 1985-04-24 株式会社デンソー Rotation angle detection device
WO2023243303A1 (en) * 2022-06-16 2023-12-21 多摩川精機株式会社 Rotary encoder

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