GB1298754A - Improved electro-optical measuring system - Google Patents

Improved electro-optical measuring system

Info

Publication number
GB1298754A
GB1298754A GB1067370A GB1067370A GB1298754A GB 1298754 A GB1298754 A GB 1298754A GB 1067370 A GB1067370 A GB 1067370A GB 1067370 A GB1067370 A GB 1067370A GB 1298754 A GB1298754 A GB 1298754A
Authority
GB
United Kingdom
Prior art keywords
grid
scanning
vane
march
photo
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
GB1067370A
Inventor
Ronald Lindsay Chittock
Barry Frank Lambert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1298754A publication Critical patent/GB1298754A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/32—Indicating the weight by optical projection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
    • G01F15/075—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
    • G01F15/0755—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means involving digital counting

Landscapes

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

Abstract

1298754 Measuring dimensions R L CHITTOCK and B F LAMBERT 5 March 1970 [24 March 1969] 10673/70 Heading G4H The dimension of an object overlying an optical grid having reflective markings or its position along the grid is determined by photoelectrically scanning the grid and counting the number of graduations unobscured by the object. If the object is long, one end is located at a datum and only its other end overlies a grid, alternatively a grid and photo-electric detector may be used at each end of the object. The object may be a vane of a meter and several meter vanes each with respective grids may be scanned sequentially, each vane identified by a coded grid which generates a code-signal during scanning. A television raster scanning type of camera is used as a photo-electric detector with straight line or circular scanning and a counter counting the scans per frame selects the scans which scan the grids. A further counter receives the pulses generated by the exposed portions of a grid and provides an output to an indicator, or supplies a binary coded decimal signal output to a computer.
GB1067370A 1969-03-24 1970-03-05 Improved electro-optical measuring system Expired GB1298754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU52400/69A AU5240069A (en) 1969-03-24 1969-03-24 Improved electro-optical measuring system

Publications (1)

Publication Number Publication Date
GB1298754A true GB1298754A (en) 1972-12-06

Family

ID=3738655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1067370A Expired GB1298754A (en) 1969-03-24 1970-03-05 Improved electro-optical measuring system

Country Status (5)

Country Link
AU (1) AU5240069A (en)
DE (1) DE2013771A1 (en)
FR (1) FR2039870A5 (en)
GB (1) GB1298754A (en)
NL (1) NL7003918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578858A (en) * 2020-05-26 2020-08-25 山东大学 Device and method for automatically monitoring crack deformation of large-scale retaining structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731744A (en) * 1985-07-16 1988-03-15 Neal Hare Position sensor and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578858A (en) * 2020-05-26 2020-08-25 山东大学 Device and method for automatically monitoring crack deformation of large-scale retaining structure

Also Published As

Publication number Publication date
NL7003918A (en) 1970-09-28
AU5240069A (en) 1971-06-17
DE2013771A1 (en) 1970-10-01
FR2039870A5 (en) 1971-01-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees