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GB1385912A - Examining the cross-sectional profile of elongate articles - Google Patents

Examining the cross-sectional profile of elongate articles

Info

Publication number
GB1385912A
GB1385912A GB4175871A GB4175871A GB1385912A GB 1385912 A GB1385912 A GB 1385912A GB 4175871 A GB4175871 A GB 4175871A GB 4175871 A GB4175871 A GB 4175871A GB 1385912 A GB1385912 A GB 1385912A
Authority
GB
United Kingdom
Prior art keywords
light
bar
lens
sept
mask
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
GB4175871A
Inventor
Charles Burns
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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 British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Priority to GB4175871A priority Critical patent/GB1385912A/en
Publication of GB1385912A publication Critical patent/GB1385912A/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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

1385912 Optical gauging apparatus BRITISH IRON & STEEL RESEARCH ASSOCIATION 6 Sept 1972 [7 Sept 1971] 41758/71 Heading G1M A travelling metal or plastics bar 3 has its crosssection examined by light projectors 5, 6 which illuminate a sharp edged area in a plane transverse to the bar so that collectors 7, 8 reflect the light via reflective surfaces 18, 19, 21, to a collection lens 20 which forms an image 27 of the area on a television camera unit 12 and a monitor screen 26. The presentation may however be a ground glass screen rather than television apparatus. Each projector 5, 6 comprises a light source 13, which could be intermittent flash, a first mask 15 at the focus of a lens 14 and a second mask 16 as shown, the arrangement being such as to provide a beam of light 17 preferably at 90 degrees to the long axis of the bar 3. The projectors could however use mirrors rather than the lens and masks, and the apparatus may be used in conjunction with a profile rolling mill control device and a graticule to measure the profile. (For Figures see next page)
GB4175871A 1971-09-07 1971-09-07 Examining the cross-sectional profile of elongate articles Expired GB1385912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4175871A GB1385912A (en) 1971-09-07 1971-09-07 Examining the cross-sectional profile of elongate articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4175871A GB1385912A (en) 1971-09-07 1971-09-07 Examining the cross-sectional profile of elongate articles

Publications (1)

Publication Number Publication Date
GB1385912A true GB1385912A (en) 1975-03-05

Family

ID=10421249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4175871A Expired GB1385912A (en) 1971-09-07 1971-09-07 Examining the cross-sectional profile of elongate articles

Country Status (1)

Country Link
GB (1) GB1385912A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375578A1 (en) * 1976-12-17 1978-07-21 United Technologies Corp APPARATUS AND METHOD FOR INSPECTING THE CONTOUR OF ARTICLES
US4125317A (en) * 1977-11-26 1978-11-14 United Technologies Corporation Optical inspection system employing dual path pickup system with single spherical mirror
EP0002428A1 (en) * 1977-11-26 1979-06-13 United Technologies Corporation Optical system for use with apparatus for contouring surfaces with coherent light
EP0053730A1 (en) * 1980-11-27 1982-06-16 Webb Service GmbH Key recognition device
WO1989005468A1 (en) * 1987-12-10 1989-06-15 Gebhard Birkle Device for optically scanning the surface of an object
US9996766B2 (en) 2015-05-01 2018-06-12 Corning Incorporated Imaging-based methods for detecting and measuring defects in extruded cellular ceramic articles
US10769772B2 (en) 2015-05-21 2020-09-08 Corning Incorporated Methods for inspecting cellular articles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375578A1 (en) * 1976-12-17 1978-07-21 United Technologies Corp APPARATUS AND METHOD FOR INSPECTING THE CONTOUR OF ARTICLES
US4147433A (en) * 1976-12-17 1979-04-03 United Technologies Corporation Contour inspection
US4125317A (en) * 1977-11-26 1978-11-14 United Technologies Corporation Optical inspection system employing dual path pickup system with single spherical mirror
EP0002428A1 (en) * 1977-11-26 1979-06-13 United Technologies Corporation Optical system for use with apparatus for contouring surfaces with coherent light
EP0053730A1 (en) * 1980-11-27 1982-06-16 Webb Service GmbH Key recognition device
WO1989005468A1 (en) * 1987-12-10 1989-06-15 Gebhard Birkle Device for optically scanning the surface of an object
US5126872A (en) * 1987-12-10 1992-06-30 Birkle Sensor Gmbh & Co. Apparatus for optically scanning the surface of an object whose surface is capable of reflecting or scattering light
US9996766B2 (en) 2015-05-01 2018-06-12 Corning Incorporated Imaging-based methods for detecting and measuring defects in extruded cellular ceramic articles
US10769772B2 (en) 2015-05-21 2020-09-08 Corning Incorporated Methods for inspecting cellular articles

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Legal Events

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