AU3546800A - Differential displacement optical sensor - ii - Google Patents

Differential displacement optical sensor - ii

Info

Publication number
AU3546800A
AU3546800A AU35468/00A AU3546800A AU3546800A AU 3546800 A AU3546800 A AU 3546800A AU 35468/00 A AU35468/00 A AU 35468/00A AU 3546800 A AU3546800 A AU 3546800A AU 3546800 A AU3546800 A AU 3546800A
Authority
AU
Australia
Prior art keywords
optical sensor
differential displacement
displacement optical
differential
sensor
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.)
Abandoned
Application number
AU35468/00A
Inventor
Danny Grant
Pedro Gregorio
Vincent Hayward
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.)
Individual
Original Assignee
Individual
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 US09/282,153 external-priority patent/US6020967A/en
Application filed by Individual filed Critical Individual
Publication of AU3546800A publication Critical patent/AU3546800A/en
Abandoned 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
    • G01D5/347—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
    • G01D5/34776—Absolute encoders with analogue or digital 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
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/775—Tapered profiles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
AU35468/00A 1999-03-31 2000-03-31 Differential displacement optical sensor - ii Abandoned AU3546800A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09282153 1999-03-31
US09/282,153 US6020967A (en) 1999-03-31 1999-03-31 Differential displacement optical sensor
US49604200A 2000-02-02 2000-02-02
US09496042 2000-02-02
PCT/CA2000/000338 WO2000060315A1 (en) 1999-03-31 2000-03-31 Differential displacement optical sensor - ii

Publications (1)

Publication Number Publication Date
AU3546800A true AU3546800A (en) 2000-10-23

Family

ID=26961274

Family Applications (1)

Application Number Title Priority Date Filing Date
AU35468/00A Abandoned AU3546800A (en) 1999-03-31 2000-03-31 Differential displacement optical sensor - ii

Country Status (3)

Country Link
AU (1) AU3546800A (en)
CA (1) CA2303629C (en)
WO (1) WO2000060315A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209448A1 (en) * 2000-11-23 2002-05-29 Abb Research Ltd. Optical angular or linear encoder
FR2926633B1 (en) * 2008-01-18 2010-12-24 Crouzet Automatismes OPTICAL SENSOR
WO2012159771A2 (en) * 2011-05-26 2012-11-29 Ghanem Husam Sensor or sensor measuring unit having a mechanical-electrical converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399347A (en) * 1964-01-09 1968-08-27 Bausch & Lomb Photoelectric system for generating a signal proportional to the movement of a meter
DE2416399A1 (en) * 1974-04-04 1975-10-16 Schwarzer Gmbh Fritz Electronic circuit for a stenotype - guides the recording system in a stenotype with a position pickup having screening segment
GB1563200A (en) * 1975-10-16 1980-03-19 Keystone Int Position-detecting systems
DK137187A (en) * 1986-03-21 1987-09-22 Elitex Zavody Textilniho OPTION ELECTRONIC MOVEMENT SENSOR

Also Published As

Publication number Publication date
CA2303629C (en) 2007-11-20
CA2303629A1 (en) 2000-09-30
WO2000060315A1 (en) 2000-10-12

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase