GB553491A - Improvements to an electric device for signalling the position of a movable mark - Google Patents

Improvements to an electric device for signalling the position of a movable mark

Info

Publication number
GB553491A
GB553491A GB14157/42A GB1415742A GB553491A GB 553491 A GB553491 A GB 553491A GB 14157/42 A GB14157/42 A GB 14157/42A GB 1415742 A GB1415742 A GB 1415742A GB 553491 A GB553491 A GB 553491A
Authority
GB
United Kingdom
Prior art keywords
signalling
electric device
pulses
movable mark
relay
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
GB14157/42A
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.)
GENEVOISE INSTR PHYSIQUE
Societe Genevoise dInstruments de Physique
Original Assignee
GENEVOISE INSTR PHYSIQUE
Societe Genevoise dInstruments de Physique
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 GENEVOISE INSTR PHYSIQUE, Societe Genevoise dInstruments de Physique filed Critical GENEVOISE INSTR PHYSIQUE
Publication of GB553491A publication Critical patent/GB553491A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/14—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Saccharide Compounds (AREA)

Abstract

553,491. Electric tests. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Oct. 8, 1942, No. 14157. Convention date, Feb. 28. [Class 37] [Also in Group XL] In apparatus for detecting phase coincidence between sets of pulses, the two sets of pulses are supplied to separate grids 15, 15a of a valve 16 connected to a relay 24, the arrangement being such that the relay is operated only when the pulses coincide.
GB14157/42A 1942-02-28 1942-10-08 Improvements to an electric device for signalling the position of a movable mark Expired GB553491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH553491X 1942-02-28

Publications (1)

Publication Number Publication Date
GB553491A true GB553491A (en) 1943-05-24

Family

ID=4519814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14157/42A Expired GB553491A (en) 1942-02-28 1942-10-08 Improvements to an electric device for signalling the position of a movable mark

Country Status (1)

Country Link
GB (1) GB553491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501373A1 (en) * 1974-01-15 1975-07-24 Aga Ab DEVICE FOR ANGLE OR LENGTH MEASUREMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501373A1 (en) * 1974-01-15 1975-07-24 Aga Ab DEVICE FOR ANGLE OR LENGTH MEASUREMENT

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