GB1271990A - Method of measuring a dimension, such as a width - Google Patents

Method of measuring a dimension, such as a width

Info

Publication number
GB1271990A
GB1271990A GB2067269A GB2067269A GB1271990A GB 1271990 A GB1271990 A GB 1271990A GB 2067269 A GB2067269 A GB 2067269A GB 2067269 A GB2067269 A GB 2067269A GB 1271990 A GB1271990 A GB 1271990A
Authority
GB
United Kingdom
Prior art keywords
width
product
lines
line
measuring
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
GB2067269A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1271990A publication Critical patent/GB1271990A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width

Landscapes

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

Abstract

1,271,990. Measuring strip width. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. April 23, 1969 [April 26, 1968], No.20672/69. Headings G1A and G1M. A product 1 such as hot rolled strip whose width 'W' is to be measured is observed by fixed but adjustable optical sighting devices 4, 5, which receive rays emitted from or reflected by 1 and reflect them by means of mirrors 10, 11, lenses 12, 13 and prism 14 on to the surface of a television camera 15. Thus a ray 16 corresponding to one edge 17 will be represented on 15 by a line 17<SP>1</SP>, and similarly for the edge 21 of the product there is a second line 21<SP>1</SP> so that the lighter area 19 corresponds to the visible part of the product viewed from device 5 and the darker area 20 corresponds to the support 3. The distance between the lines 17' and 21<SP>1</SP> is related to the width of the product and may be measured by timing electronic scanning between them and calculating the width by means 24. A line 18 parallel to and directly below the prism 14 will appear on the screen as two spaced apart lines 18<SP>1</SP> and 18<SP>11</SP> and these may be made to coincide with the edges of the scanner. If the product is obliquely placed relative to the devices 4, 5 then the screen 15 gives an image as in Fig. 3, so that the width 'W' may be calculated, from the known distance between scanning lines 25 and 26 and by determining the distances l, m, and n, by measuring the time taken to scan along the lines 29, 30, 31.
GB2067269A 1968-04-26 1969-04-23 Method of measuring a dimension, such as a width Expired GB1271990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU55975 1968-04-26

Publications (1)

Publication Number Publication Date
GB1271990A true GB1271990A (en) 1972-04-26

Family

ID=19725581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2067269A Expired GB1271990A (en) 1968-04-26 1969-04-23 Method of measuring a dimension, such as a width

Country Status (5)

Country Link
BE (1) BE731618A (en)
DE (1) DE1920547A1 (en)
FR (1) FR2007018A1 (en)
GB (1) GB1271990A (en)
LU (1) LU55975A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004245A1 (en) * 1984-03-09 1985-09-26 The Broken Hill Proprietary Company Limited Optical article dimension measuring system
EP0289084A2 (en) * 1987-04-22 1988-11-02 John Lysaght (Australia) Ltd. Non-contact determination of the position of a rectilinear feature of an article
US7508513B2 (en) 2005-04-28 2009-03-24 Nhk Spring Co., Ltd. Measuring apparatus and measuring method
EP2745945A1 (en) * 2012-02-20 2014-06-25 Salzgitter Mannesmann Grobblech GmbH Method and apparatus for non-contact geometric measurement of an object to be measured
CN112747679A (en) * 2020-12-23 2021-05-04 河南中原光电测控技术有限公司 Width measuring device, width measuring method, and computer-readable medium storing width measuring program

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718757A (en) * 1970-12-29 1973-02-27 Ibm Temperature monitoring
DE4210031A1 (en) * 1992-03-27 1993-09-30 Eyetec Gmbh Contactless optical length measurement of coated and uncoated sheet materials of variable thickness - acquiring images of lateral, uncoated edge with line or matrix camera using deflecting mirror or prism for deflecting image through ninety degs..
DE102006015314B3 (en) * 2006-03-30 2007-08-30 Siemens Ag Object e.g. ashlar-shaped packet, expansion determining device, has light source and camera arranged adjacent to outer contour of object and adjacent to contact area such that image of object is displayed on side edge of side surface

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004245A1 (en) * 1984-03-09 1985-09-26 The Broken Hill Proprietary Company Limited Optical article dimension measuring system
EP0289084A2 (en) * 1987-04-22 1988-11-02 John Lysaght (Australia) Ltd. Non-contact determination of the position of a rectilinear feature of an article
AU597485B2 (en) * 1987-04-22 1990-05-31 John Lysaght (Australia) Limited Non-contact determination of the position of a rectilinear feature of an article
EP0289084A3 (en) * 1987-04-22 1990-09-26 John Lysaght (Australia) Limited Non-contact determination of the position of a rectilinear feature of an article
US7508513B2 (en) 2005-04-28 2009-03-24 Nhk Spring Co., Ltd. Measuring apparatus and measuring method
EP2745945A1 (en) * 2012-02-20 2014-06-25 Salzgitter Mannesmann Grobblech GmbH Method and apparatus for non-contact geometric measurement of an object to be measured
CN112747679A (en) * 2020-12-23 2021-05-04 河南中原光电测控技术有限公司 Width measuring device, width measuring method, and computer-readable medium storing width measuring program

Also Published As

Publication number Publication date
FR2007018A1 (en) 1970-01-02
LU55975A1 (en) 1969-11-14
DE1920547A1 (en) 1969-12-04
BE731618A (en) 1969-10-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee