GB1125356A - Optical system for the remote position-indication of a moving element - Google Patents

Optical system for the remote position-indication of a moving element

Info

Publication number
GB1125356A
GB1125356A GB22483/67A GB2248367A GB1125356A GB 1125356 A GB1125356 A GB 1125356A GB 22483/67 A GB22483/67 A GB 22483/67A GB 2248367 A GB2248367 A GB 2248367A GB 1125356 A GB1125356 A GB 1125356A
Authority
GB
United Kingdom
Prior art keywords
bridge
output
photo
tracks
selector
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
GB22483/67A
Inventor
Bernard Schwab
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1125356A publication Critical patent/GB1125356A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/08—Structural combination of reactor core or moderator structure with viewing means, e.g. with television camera, periscope, window
    • 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
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,125,356. Position encoders. COMMISSARIAT A L'ENERGIE ATOMIQUE. 15 May, 1967 [16 May, 1966], No. 22483/67. Heading G4H. A system for the remote position indication of a moving element e.g. an element of a nuclearreactor re-charging system includes a member having coded parallel tracks e.g. as in Fig. 2, the member being driven in synchronism with the element between a fixed light source and a photo-electric detector, a selector, e.g. a disc as in Fig. 3, uncovering the tracks in succession so that the output from the detector is a plurality of markings serially transmitted. The selector and coded member each have a supplementary track with markings which, when they coincide allow light to pass to a further photo-electric detector to enable the output from the first detector to be read. In the embodiment described, both the angular position of a bridge 12 (Fig. 1) and the linear position of a carriage 14 on the bridge 12 are read by means of binary coded members sensed by photo-oells as selectors rotate. The output from photo-cell 26 representing the angular position of the bridge is fed to a store 52 which controls a display system 54 and if it is required to position the bridge in accordance with a position entered via a keyboard 60, the output from the store and keyboard are fed to a comparator 62 the output from which stops the motor driving the bridge when coincidence is reached. The carriage may be similarly positioned. The coded member for the carriage is an endless belt having parallel longitudinal tracks, a selector disc scanning the tracks sequentially. The selector disc may be replaced by a drum.
GB22483/67A 1966-05-16 1967-05-15 Optical system for the remote position-indication of a moving element Expired GB1125356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR61846A FR1506325A (en) 1966-05-16 1966-05-16 Optical device for remote location of the position of a movable member

Publications (1)

Publication Number Publication Date
GB1125356A true GB1125356A (en) 1968-08-28

Family

ID=8608802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22483/67A Expired GB1125356A (en) 1966-05-16 1967-05-15 Optical system for the remote position-indication of a moving element

Country Status (7)

Country Link
BE (1) BE698105A (en)
CH (1) CH475618A (en)
DE (1) DE1623663B1 (en)
ES (1) ES340579A1 (en)
FR (1) FR1506325A (en)
GB (1) GB1125356A (en)
LU (1) LU53659A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018496A1 (en) * 1980-05-14 1981-11-19 Walter Dipl.-Ing. Dr.-Ing. 8012 Ottobrunn Mehnert METHOD AND DEVICE FOR MEASURING AN ANGLE
EP0203897A1 (en) * 1985-04-26 1986-12-03 SiTek Lab AB Position-determining apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896165C (en) * 1941-05-11 1953-11-09 Lorenz C Ag Method for the transmission of measured values
AT219867B (en) * 1958-09-25 1962-02-26 Contraves Ag Automatic digital measuring device for the current relative position of two device parts that can move against each other
NL248545A (en) * 1959-02-19

Also Published As

Publication number Publication date
LU53659A1 (en) 1967-07-12
CH475618A (en) 1969-07-15
FR1506325A (en) 1967-12-22
DE1623663B1 (en) 1971-03-18
BE698105A (en) 1967-10-16
ES340579A1 (en) 1969-06-01

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