FR2335825A1 - Procede et dispositif de reperage d'une position precise - Google Patents

Procede et dispositif de reperage d'une position precise

Info

Publication number
FR2335825A1
FR2335825A1 FR7538832A FR7538832A FR2335825A1 FR 2335825 A1 FR2335825 A1 FR 2335825A1 FR 7538832 A FR7538832 A FR 7538832A FR 7538832 A FR7538832 A FR 7538832A FR 2335825 A1 FR2335825 A1 FR 2335825A1
Authority
FR
France
Prior art keywords
slits
bands
scale
series
separated
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
FR7538832A
Other languages
English (en)
French (fr)
Other versions
FR2335825B1 (enExample
Inventor
Helenio Llop
Francois Sorba
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.)
Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Original Assignee
Societe dOptique Precision Electronique et Mecanique SOPELEM SA
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 Societe dOptique Precision Electronique et Mecanique SOPELEM SA filed Critical Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Priority to FR7538832A priority Critical patent/FR2335825A1/fr
Publication of FR2335825A1 publication Critical patent/FR2335825A1/fr
Application granted granted Critical
Publication of FR2335825B1 publication Critical patent/FR2335825B1/fr
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
    • G01D5/366—Particular pulse shapes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
FR7538832A 1975-12-18 1975-12-18 Procede et dispositif de reperage d'une position precise Granted FR2335825A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7538832A FR2335825A1 (fr) 1975-12-18 1975-12-18 Procede et dispositif de reperage d'une position precise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7538832A FR2335825A1 (fr) 1975-12-18 1975-12-18 Procede et dispositif de reperage d'une position precise

Publications (2)

Publication Number Publication Date
FR2335825A1 true FR2335825A1 (fr) 1977-07-15
FR2335825B1 FR2335825B1 (enExample) 1978-07-13

Family

ID=9163904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538832A Granted FR2335825A1 (fr) 1975-12-18 1975-12-18 Procede et dispositif de reperage d'une position precise

Country Status (1)

Country Link
FR (1) FR2335825A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094481A3 (en) * 1982-05-19 1986-02-05 Dr. Johannes Heidenhain Gmbh Opto-electrical measuring-device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, VOLUME 18, NO. 1, JUIN 1975, PAGE 229) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094481A3 (en) * 1982-05-19 1986-02-05 Dr. Johannes Heidenhain Gmbh Opto-electrical measuring-device

Also Published As

Publication number Publication date
FR2335825B1 (enExample) 1978-07-13

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Legal Events

Date Code Title Description
ST Notification of lapse