GB1040070A - Improvements in devices for measuring the displacements of a graduated scale - Google Patents

Improvements in devices for measuring the displacements of a graduated scale

Info

Publication number
GB1040070A
GB1040070A GB2162263A GB2162263A GB1040070A GB 1040070 A GB1040070 A GB 1040070A GB 2162263 A GB2162263 A GB 2162263A GB 2162263 A GB2162263 A GB 2162263A GB 1040070 A GB1040070 A GB 1040070A
Authority
GB
United Kingdom
Prior art keywords
scale
graduated scale
photo
cells
displacements
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
GB2162263A
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.)
Manufacture de Vilebrequins de Lorette SA MAVILOR
Original Assignee
Manufacture de Vilebrequins de Lorette SA MAVILOR
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 Manufacture de Vilebrequins de Lorette SA MAVILOR filed Critical Manufacture de Vilebrequins de Lorette SA MAVILOR
Publication of GB1040070A publication Critical patent/GB1040070A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,040,070. Electric selective signalling. MAVILOR MANUFACTURE DE VILEBREQUINS DE LORETTE. May 30, 1963 [June 6, 1962], No. 21622/63. Heading G4H. Relative movement of a graduated scale is measured by arranging that when the scale moves the distance between successive graduations, an image of one graduation moves successively on to each of a series of photocells. The pulses from the photo-cells are counted, the result being stored and used to control a machine tool, the displacement measured being that of the workpiece. In a modification, light from the graduations of the scale is multiply-reflected inside a prism before reaching the photo-cells, for reduction of space.
GB2162263A 1962-06-06 1963-05-30 Improvements in devices for measuring the displacements of a graduated scale Expired GB1040070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1226962 1962-06-06

Publications (1)

Publication Number Publication Date
GB1040070A true GB1040070A (en) 1966-08-24

Family

ID=11139641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2162263A Expired GB1040070A (en) 1962-06-06 1963-05-30 Improvements in devices for measuring the displacements of a graduated scale

Country Status (1)

Country Link
GB (1) GB1040070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687980A (en) * 1980-10-20 1987-08-18 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687980A (en) * 1980-10-20 1987-08-18 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same

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