FR1453339A - Apparatus for determining the extent and direction of motion of a cyclic canvas - Google Patents

Apparatus for determining the extent and direction of motion of a cyclic canvas

Info

Publication number
FR1453339A
FR1453339A FR23115A FR23115A FR1453339A FR 1453339 A FR1453339 A FR 1453339A FR 23115 A FR23115 A FR 23115A FR 23115 A FR23115 A FR 23115A FR 1453339 A FR1453339 A FR 1453339A
Authority
FR
France
Prior art keywords
canvas
cyclic
extent
motion
determining
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.)
Expired
Application number
FR23115A
Other languages
French (fr)
Inventor
Alexander Turnbull Shepherd
Ronald Robert Mclaren
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to FR23115A priority Critical patent/FR1453339A/en
Application granted granted Critical
Publication of FR1453339A publication Critical patent/FR1453339A/en
Expired 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
    • G01D5/363—Direction discrimination

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR23115A 1965-07-01 1965-07-01 Apparatus for determining the extent and direction of motion of a cyclic canvas Expired FR1453339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR23115A FR1453339A (en) 1965-07-01 1965-07-01 Apparatus for determining the extent and direction of motion of a cyclic canvas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR23115A FR1453339A (en) 1965-07-01 1965-07-01 Apparatus for determining the extent and direction of motion of a cyclic canvas

Publications (1)

Publication Number Publication Date
FR1453339A true FR1453339A (en) 1966-06-03

Family

ID=8583569

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23115A Expired FR1453339A (en) 1965-07-01 1965-07-01 Apparatus for determining the extent and direction of motion of a cyclic canvas

Country Status (1)

Country Link
FR (1) FR1453339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331772A1 (en) * 1975-11-11 1977-06-10 Rieder Heinz Photoelectric length measurement system - performs interpolation and derives control signals for interpolation by reference comparison (OE15.1.77)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331772A1 (en) * 1975-11-11 1977-06-10 Rieder Heinz Photoelectric length measurement system - performs interpolation and derives control signals for interpolation by reference comparison (OE15.1.77)

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