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FR2966239B1 - ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS - Google Patents

ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS

Info

Publication number
FR2966239B1
FR2966239B1 FR1058442A FR1058442A FR2966239B1 FR 2966239 B1 FR2966239 B1 FR 2966239B1 FR 1058442 A FR1058442 A FR 1058442A FR 1058442 A FR1058442 A FR 1058442A FR 2966239 B1 FR2966239 B1 FR 2966239B1
Authority
FR
France
Prior art keywords
photoreceptor
angular position
position sensor
high resolution
low dimensions
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.)
Active
Application number
FR1058442A
Other languages
French (fr)
Other versions
FR2966239A1 (en
Inventor
Antoine Pergetti
Frederic Lacour
Daniel Gaumet
Michel Orliange
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.)
Exxelia SAS
Original Assignee
Eurofarad EFD SAS
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 Eurofarad EFD SAS filed Critical Eurofarad EFD SAS
Priority to FR1058442A priority Critical patent/FR2966239B1/en
Publication of FR2966239A1 publication Critical patent/FR2966239A1/en
Application granted granted Critical
Publication of FR2966239B1 publication Critical patent/FR2966239B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • 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
    • G01D5/3473—Circular or rotary encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The sensor has a rotationally movable disk (6) centered on a rotational shaft that is driven by a moving element to measure an angular position at a given instant. The disk includes two concentric circular tracks, where each track is provided with opaque and transparent zones. A photoreceptor (4) is arranged such that light (F) emitted by an LED (3) is traverse to the disk before being received by the photoreceptor. The LED is isolated and placed at distance (C) from the photoreceptor so that the photoreceptor receives a beam of non-deviated light.
FR1058442A 2010-10-15 2010-10-15 ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS Active FR2966239B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1058442A FR2966239B1 (en) 2010-10-15 2010-10-15 ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1058442A FR2966239B1 (en) 2010-10-15 2010-10-15 ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS

Publications (2)

Publication Number Publication Date
FR2966239A1 FR2966239A1 (en) 2012-04-20
FR2966239B1 true FR2966239B1 (en) 2013-03-08

Family

ID=43940269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1058442A Active FR2966239B1 (en) 2010-10-15 2010-10-15 ANGULAR POSITION SENSOR WITH HIGH RESOLUTION AND LOW DIMENSIONS

Country Status (1)

Country Link
FR (1) FR2966239B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073710A (en) * 1989-09-21 1991-12-17 Copal Company Limited Optical displacement detector including a displacement member's surface having a diffractive pattern and a holographic lens pattern
US6483104B1 (en) * 1996-09-23 2002-11-19 Valeo Schalter Und Sensoren Gmbh Rotational angle sensor using a CCD line with enhanced measuring precision
JP3816679B2 (en) * 1998-09-17 2006-08-30 株式会社東海理化電機製作所 Rotation angle detector
US7187305B2 (en) * 2004-09-21 2007-03-06 Kollmorgen Corporation Encoder for a motor controller

Also Published As

Publication number Publication date
FR2966239A1 (en) 2012-04-20

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