JPS577516A - Encoder - Google Patents

Encoder

Info

Publication number
JPS577516A
JPS577516A JP8168780A JP8168780A JPS577516A JP S577516 A JPS577516 A JP S577516A JP 8168780 A JP8168780 A JP 8168780A JP 8168780 A JP8168780 A JP 8168780A JP S577516 A JPS577516 A JP S577516A
Authority
JP
Japan
Prior art keywords
signals
sensor
output
arrangement
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
JP8168780A
Other languages
Japanese (ja)
Other versions
JPS6258448B2 (en
Inventor
Hiroshi Tamaki
Fumio Otomo
Kazuaki Kimura
Masakata Minami
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.)
Toshiba Corp
Tokyo Optical Co Ltd
Original Assignee
Toshiba Corp
Tokyo Optical Co Ltd
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Optical Co Ltd, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8168780A priority Critical patent/JPS577516A/en
Publication of JPS577516A publication Critical patent/JPS577516A/en
Publication of JPS6258448B2 publication Critical patent/JPS6258448B2/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)

Abstract

PURPOSE:To enable to provide a high precision without a wide change in a constitution, by a method wherein a lattice pattern of a code plate and a group of sensors are arranged in an array, which equalize in an arrangement frequency, are are positioned so that they can cross each other. CONSTITUTION:A code plate 1, in which light and dark information is periodically arranged in a longitudinal direction, and a linar sensor 2 are located within a plane, being perpendicular to a paper surface, and tilting at an angle theta to each other. The arrangement of the light and dark pattern of the plate 1 and the arrangement of a group of the sensors 2 have the same period. The output of the sensor 2 produced resulting from the relative movement of the plate 1 to the sensor 2 is added to a signal distributor 13 after being amplified. The distributor 13 distributes the signals of the sensor 2 into signals of even-numbered elements and signals of odd-numbered elements, and the signals are sent to envelope curve detectors 14 and 15. Output signals from detectors 14 and 15 are compared by means of a comparator 16, and a comparision output is generated at a point where the two signals produce the same electrical potential. The comparison output is added to a counter 17 which feeds counting values to a conversion circuit 12, and a micro reading result of a movement amount is obtained from the circuit 12.
JP8168780A 1980-06-17 1980-06-17 Encoder Granted JPS577516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8168780A JPS577516A (en) 1980-06-17 1980-06-17 Encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8168780A JPS577516A (en) 1980-06-17 1980-06-17 Encoder

Publications (2)

Publication Number Publication Date
JPS577516A true JPS577516A (en) 1982-01-14
JPS6258448B2 JPS6258448B2 (en) 1987-12-05

Family

ID=13753261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8168780A Granted JPS577516A (en) 1980-06-17 1980-06-17 Encoder

Country Status (1)

Country Link
JP (1) JPS577516A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998054548A1 (en) * 1997-05-27 1998-12-03 Amos Talmi Methods and apparatus for position determination
US6649925B2 (en) 1999-11-26 2003-11-18 Amos Talmi Methods of calibrating a position measurement device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998054548A1 (en) * 1997-05-27 1998-12-03 Amos Talmi Methods and apparatus for position determination
US6333511B1 (en) 1997-05-27 2001-12-25 Amos Talmi Methods and apparatus for position determination
US6649925B2 (en) 1999-11-26 2003-11-18 Amos Talmi Methods of calibrating a position measurement device

Also Published As

Publication number Publication date
JPS6258448B2 (en) 1987-12-05

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