JPS6165166A - 回転情報検出計 - Google Patents

回転情報検出計

Info

Publication number
JPS6165166A
JPS6165166A JP18617184A JP18617184A JPS6165166A JP S6165166 A JPS6165166 A JP S6165166A JP 18617184 A JP18617184 A JP 18617184A JP 18617184 A JP18617184 A JP 18617184A JP S6165166 A JPS6165166 A JP S6165166A
Authority
JP
Japan
Prior art keywords
light
radiation grating
grating
radiation
luminous flux
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
JP18617184A
Other languages
English (en)
Japanese (ja)
Other versions
JPH045143B2 (en]
Inventor
Tetsuji Nishimura
西村　哲治
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP18617184A priority Critical patent/JPS6165166A/ja
Publication of JPS6165166A publication Critical patent/JPS6165166A/ja
Priority to US07/481,684 priority patent/US4967072A/en
Publication of JPH045143B2 publication Critical patent/JPH045143B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/366—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light by using diffraction of light
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Optical Transform (AREA)
JP18617184A 1984-09-05 1984-09-05 回転情報検出計 Granted JPS6165166A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP18617184A JPS6165166A (ja) 1984-09-05 1984-09-05 回転情報検出計
US07/481,684 US4967072A (en) 1984-09-05 1990-02-20 Interferometric rotating condition detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18617184A JPS6165166A (ja) 1984-09-05 1984-09-05 回転情報検出計

Publications (2)

Publication Number Publication Date
JPS6165166A true JPS6165166A (ja) 1986-04-03
JPH045143B2 JPH045143B2 (en]) 1992-01-30

Family

ID=16183632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18617184A Granted JPS6165166A (ja) 1984-09-05 1984-09-05 回転情報検出計

Country Status (1)

Country Link
JP (1) JPS6165166A (en])

Also Published As

Publication number Publication date
JPH045143B2 (en]) 1992-01-30

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term