GB811769A - Method of and apparatus for measuring the distance between two points - Google Patents

Method of and apparatus for measuring the distance between two points

Info

Publication number
GB811769A
GB811769A GB3922556A GB3922556A GB811769A GB 811769 A GB811769 A GB 811769A GB 3922556 A GB3922556 A GB 3922556A GB 3922556 A GB3922556 A GB 3922556A GB 811769 A GB811769 A GB 811769A
Authority
GB
United Kingdom
Prior art keywords
boundaries
produce
images
cameras
distance
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
GB3922556A
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.)
EXATEST GES fur MESSTECHNIK M
Original Assignee
EXATEST GES fur MESSTECHNIK M
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 EXATEST GES fur MESSTECHNIK M filed Critical EXATEST GES fur MESSTECHNIK M
Publication of GB811769A publication Critical patent/GB811769A/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)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)

Abstract

811,769. Photo-electric measurement of width. EXATEST GESELLSCHAFT FUR MESSTECHNIK. Dec. 24, 1956 [Dec. 22, 1955], No. 39225/56. Class 40 (3). The distance between two boundaries is determined by projecting images of the boundaries on to an electronic camera or cameras which scans them to produce impulses of duration proportional to the distance. Lights 2 project images of the boundaries of a strip 1 on to the photo-electric layer 4 of the electronic cameras 5, the coupled coils 6 of which scan a line of the images to produce pulses which are amplified at 8 and 23, limited to a constant amplitude at 24 and joined in opposition at 25 to be evaluated at 26 so as to produce a zero reading at 12 for a constant nominal width. Variations of the width of the strip give proportional positive or negative readings. Alternatively the sum of the two pulses may be obtained to give an absolute reading or only one camera may be used to record both images and produce a single complete pulse. The scanning path may be varied to prevent wear by movement of slotted diaphragms between the cameras and the boundaries.
GB3922556A 1955-12-22 1956-12-24 Method of and apparatus for measuring the distance between two points Expired GB811769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE11734A DE1005741B (en) 1955-12-22 1955-12-22 Method and device for measuring the distance between two points which lie on the boundaries of a linear, planar or spatial body, in particular for measuring the width of continuously running, strip-shaped material

Publications (1)

Publication Number Publication Date
GB811769A true GB811769A (en) 1959-04-08

Family

ID=7068152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3922556A Expired GB811769A (en) 1955-12-22 1956-12-24 Method of and apparatus for measuring the distance between two points

Country Status (6)

Country Link
BE (1) BE553624A (en)
CH (1) CH351410A (en)
DE (1) DE1005741B (en)
FR (1) FR1169043A (en)
GB (1) GB811769A (en)
LU (1) LU34827A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3047435A1 (en) * 2016-02-04 2017-08-11 Deutsches Zentrum Fur Luft- Und Raumfahrt E V DEVICE FOR DETECTING DEFECTS OF MATERIALS AND METHOD RELATING THERETO

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082742B (en) * 1959-04-18 1960-06-02 Fernseh Gmbh Circuit arrangement for length measurement
DE1273828B (en) * 1959-07-09 1968-07-25 Licentia Gmbh Photoelectric device for determining the width or thickness deviation of an object from a nominal value
DE1149915B (en) * 1961-02-10 1963-06-06 Licentia Gmbh Device for non-contact width or length measurement
DE1255325B (en) * 1961-10-09 1967-11-30 Dr Hans Richter Device for contactless width measurement of moving strip-shaped material, in particular of rolled material
DE1183701B (en) * 1961-11-07 1964-12-17 Marcel Charles Pfister Photoelectric device for measuring the position or length of an object
DE2040084C3 (en) * 1970-08-12 1981-10-22 Mitsubishi Denki K.K., Tokyo Photoelectric measuring and control device for actuating a cutting device for cutting off a flat rolled material guided through a rolling train
FR2612629B1 (en) * 1987-03-16 1991-02-22 Usinor Aciers DEVICE FOR TAKING THE CONTOUR OF AN OBJECT SUCH AS IN PARTICULAR A SHEET
FR2615765B1 (en) * 1987-05-29 1992-09-04 Usinor Aciers METHOD AND DEVICE FOR DETERMINING THE SABER OF A SHEET
DE10154036A1 (en) * 2001-11-02 2003-05-15 Koenig & Bauer Ag Device for detecting the position of a side edge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548590A (en) * 1950-04-01 1951-04-10 Gen Electric Noncontacting width gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3047435A1 (en) * 2016-02-04 2017-08-11 Deutsches Zentrum Fur Luft- Und Raumfahrt E V DEVICE FOR DETECTING DEFECTS OF MATERIALS AND METHOD RELATING THERETO

Also Published As

Publication number Publication date
BE553624A (en)
CH351410A (en) 1961-01-15
DE1005741B (en) 1957-04-04
FR1169043A (en) 1958-12-19
LU34827A1 (en)

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