GB1223400A - Method of measuring thickness - Google Patents

Method of measuring thickness

Info

Publication number
GB1223400A
GB1223400A GB639170A GB639170A GB1223400A GB 1223400 A GB1223400 A GB 1223400A GB 639170 A GB639170 A GB 639170A GB 639170 A GB639170 A GB 639170A GB 1223400 A GB1223400 A GB 1223400A
Authority
GB
United Kingdom
Prior art keywords
dimension
beams
cameras
points
light
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
GB639170A
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
Priority claimed from GB21362/68A external-priority patent/GB1222233A/en
Publication of GB1223400A publication Critical patent/GB1223400A/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
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • 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

Abstract

1,223,400. Measuring dimensions photoelectrically. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. May 6, 1968 [Dec. 15, 1967], No.6391/70. Divided out of 1,222,233. Heading G1A. The dimension of an object is measured by reflecting beams of light off surfaces of the object defining the dimension and detecting the reflected beams using television cameras. Beams of light from sources 15, 18 are reflected from points 16, 19 defining the dimension 12 and the points 16, 19 are imaged by optical systems 21, 22 into television cameras 17, 20. The pulses generated from scanning the images by cameras 17, 20 are fed in turn to start and stop a timer indicating the variation of the dimension from a nominal value. The alignment of the optical systems may be checked in the absence of object 11 by receiving the beams from 15 and 18 on cameras 20 and 17 respectively.
GB639170A 1967-05-05 1968-05-06 Method of measuring thickness Expired GB1223400A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU53596 1967-05-05
BE708100 1967-12-15
GB21362/68A GB1222233A (en) 1967-05-05 1968-05-06 Method and apparatus for measuring thickness

Publications (1)

Publication Number Publication Date
GB1223400A true GB1223400A (en) 1971-02-24

Family

ID=27159260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB639170A Expired GB1223400A (en) 1967-05-05 1968-05-06 Method of measuring thickness

Country Status (1)

Country Link
GB (1) GB1223400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024516A1 (en) * 1993-04-19 1994-10-27 Toni Rydningen An arrangement for optic measuring of both width and thickness of an object moving along a straight path

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024516A1 (en) * 1993-04-19 1994-10-27 Toni Rydningen An arrangement for optic measuring of both width and thickness of an object moving along a straight path

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