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GB1418114A - Position monitoring apparatus - Google Patents

Position monitoring apparatus

Info

Publication number
GB1418114A
GB1418114A GB3617173A GB3617173A GB1418114A GB 1418114 A GB1418114 A GB 1418114A GB 3617173 A GB3617173 A GB 3617173A GB 3617173 A GB3617173 A GB 3617173A GB 1418114 A GB1418114 A GB 1418114A
Authority
GB
United Kingdom
Prior art keywords
grid
monitoring apparatus
position monitoring
gilardino
heading
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
GB3617173A
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.)
GILARDINO F
Original Assignee
GILARDINO F
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 GILARDINO F filed Critical GILARDINO F
Publication of GB1418114A publication Critical patent/GB1418114A/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
    • G01D5/347—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
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1418114 Position detector F GILARDINO 30 July 1973 [4 August 1972] 36171/73 Heading G1A The relative position of a grating or grid 5 is determined by the system shown wherein an objective lens directs radiation from a filament lamp 1 on to the grid 5 and produces a magnified image of such magnitude as to correspond in size to a scanning grid 6. The photo-sensitive counting elements 7 are then able to produce a signal output proportional to the relative displacement/movement of the grid 5.
GB3617173A 1972-08-04 1973-07-30 Position monitoring apparatus Expired GB1418114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2787072A IT963721B (en) 1972-08-04 1972-08-04 OPTICAL ELECTRONIC POSITION DETECTOR ON FRINGED ROW FOR MACHINE TOOLS AND MEASURING COMPLEX BASED ON A LARGE IMAGE FROM OPTICAL LENS

Publications (1)

Publication Number Publication Date
GB1418114A true GB1418114A (en) 1975-12-17

Family

ID=11222493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3617173A Expired GB1418114A (en) 1972-08-04 1973-07-30 Position monitoring apparatus

Country Status (4)

Country Link
DE (1) DE2339485A1 (en)
FR (1) FR2194948B3 (en)
GB (1) GB1418114A (en)
IT (1) IT963721B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5075560A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Moire distance measurements using a grating printed on or attached to a surface

Also Published As

Publication number Publication date
FR2194948A1 (en) 1974-03-01
DE2339485A1 (en) 1974-02-14
FR2194948B3 (en) 1976-07-16
IT963721B (en) 1974-01-21

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed