FR2025444A1 - - Google Patents

Info

Publication number
FR2025444A1
FR2025444A1 FR6942091A FR6942091A FR2025444A1 FR 2025444 A1 FR2025444 A1 FR 2025444A1 FR 6942091 A FR6942091 A FR 6942091A FR 6942091 A FR6942091 A FR 6942091A FR 2025444 A1 FR2025444 A1 FR 2025444A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6942091A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2025444A1 publication Critical patent/FR2025444A1/fr
Withdrawn legal-status Critical Current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
    • G01D5/38—Forming the light into pulses by diffraction gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
    • G01B21/065—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving for stretchable materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
FR6942091A 1968-12-05 1969-12-05 Withdrawn FR2025444A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6817430.A NL157715B (nl) 1968-12-05 1968-12-05 Inrichting voor het bepalen van de relatieve verplaatsing van een voorwerp met behulp van een met het voorwerp mechanisch star verbonden element.

Publications (1)

Publication Number Publication Date
FR2025444A1 true FR2025444A1 (fr) 1970-09-11

Family

ID=19805335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6942091A Withdrawn FR2025444A1 (fr) 1968-12-05 1969-12-05

Country Status (8)

Country Link
US (1) US3630624A (fr)
BE (1) BE742670A (fr)
CH (1) CH524808A (fr)
DE (1) DE1960116C3 (fr)
FR (1) FR2025444A1 (fr)
GB (1) GB1295068A (fr)
NL (1) NL157715B (fr)
SE (1) SE361527B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740688A (en) * 1986-03-20 1988-04-26 Smiths Industries Public Limited Company Optical transducers with wavelength coding
US5035507A (en) * 1988-12-21 1991-07-30 Mitutoyo Corporation Grating-interference type displacement meter apparatus
EP0544020B1 (fr) * 1991-11-23 1995-03-15 Dr. Johannes Heidenhain GmbH Dispositif interférentiel de mesure
CN110031029B (zh) * 2019-04-24 2021-03-26 广东工业大学 一种绝对式编码器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265435B (de) * 1964-05-20 1968-04-04 Leitz Ernst Gmbh Verfahren zur Festlegung der Orte von Messmarken
DE1296396B (de) * 1965-07-24 1969-05-29 Leitz Ernst Gmbh Optisches Mehrzweckmessgeraet
DE1548703B2 (de) * 1966-07-16 1971-04-15 Ernst Leitz Gmbh, 6330 Wetzlar Fotoelektrischer schrittgeber fuer vierphasen signale
DE1548707C3 (de) * 1966-07-26 1979-02-15 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Fotoelektrischer Schrittgeber

Also Published As

Publication number Publication date
US3630624A (en) 1971-12-28
CH524808A (de) 1972-06-30
BE742670A (fr) 1970-06-04
NL6817430A (fr) 1970-06-09
SE361527B (fr) 1973-11-05
DE1960116C3 (de) 1979-08-30
DE1960116B2 (de) 1979-01-04
DE1960116A1 (de) 1970-07-02
GB1295068A (fr) 1972-11-01
NL157715B (nl) 1978-08-15

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Legal Events

Date Code Title Description
ST Notification of lapse