GB1486918A - Process and apparatus for detecting longitudinal faults on moving webs of material - Google Patents

Process and apparatus for detecting longitudinal faults on moving webs of material

Info

Publication number
GB1486918A
GB1486918A GB54602/74A GB5460274A GB1486918A GB 1486918 A GB1486918 A GB 1486918A GB 54602/74 A GB54602/74 A GB 54602/74A GB 5460274 A GB5460274 A GB 5460274A GB 1486918 A GB1486918 A GB 1486918A
Authority
GB
United Kingdom
Prior art keywords
scanning
web
signal
counter
scan
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
GB54602/74A
Other languages
English (en)
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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
Priority claimed from DE19732363422 external-priority patent/DE2363422C3/de
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1486918A publication Critical patent/GB1486918A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/8921—Streaks

Landscapes

  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Textile Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB54602/74A 1973-12-20 1974-12-18 Process and apparatus for detecting longitudinal faults on moving webs of material Expired GB1486918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732363422 DE2363422C3 (de) 1973-12-20 Verfahren und Vorrichtung zur Ermittlung von Längsfehlern auf bewegten Materialbahnen

Publications (1)

Publication Number Publication Date
GB1486918A true GB1486918A (en) 1977-09-28

Family

ID=5901344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54602/74A Expired GB1486918A (en) 1973-12-20 1974-12-18 Process and apparatus for detecting longitudinal faults on moving webs of material

Country Status (5)

Country Link
US (1) US3972624A (enExample)
JP (1) JPS5097389A (enExample)
BE (1) BE823483A (enExample)
FR (1) FR2255595B1 (enExample)
GB (1) GB1486918A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125538A (en) * 1982-08-10 1984-03-07 Glaverbel Detecting sheet markings

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611539C3 (de) * 1976-03-18 1982-09-09 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zum Erkennen und Orten von sich in Längsrichtung einer laufenden Materialbahn erstreckenden Fehlern
US4170419A (en) * 1977-02-23 1979-10-09 Camsco, Inc. Optical web inspection system
GB2025037A (en) * 1978-06-26 1980-01-16 Agfa Gevaert Nv Photoelectric detection of flaws in sheets
CA1127259A (en) * 1978-10-19 1982-07-06 Jean Burtin Method and device for inspecting a moving sheet material for streaklike defects
DE2901970C2 (de) * 1979-01-19 1981-08-20 H.F. & Ph.F. Reemtsma Gmbh & Co, 2000 Hamburg Verfahren und Vorrichtung zum Aussortieren von Fremdkörpern aus auf einem sich bewegenden Förderband o.ä. befindlichen Gut
US4277178A (en) * 1980-01-15 1981-07-07 Ford Aerospace & Communications Corp. Web element concentration detection system
US4907294A (en) * 1988-04-28 1990-03-06 U.S. Natural Resources, Inc. Log scanning system
US5272352A (en) * 1991-04-24 1993-12-21 Canon Kabushiki Kaisha Retrieval system
US5696591A (en) * 1996-01-05 1997-12-09 Eastman Kodak Company Apparatus and method for detecting longitudinally oriented flaws in a moving web
DE19607793A1 (de) * 1996-03-01 1997-09-04 Basf Magnetics Gmbh Optische Oberflächenprüfeinrichtung für linear bewegte, bandförmige Materialien
US5815198A (en) * 1996-05-31 1998-09-29 Vachtsevanos; George J. Method and apparatus for analyzing an image to detect and identify defects
DE19855478B4 (de) * 1998-12-01 2006-01-12 Steinbichler Optotechnik Gmbh Verfahren und Vorrichtung zur optischen Erfassung einer Kontrastlinie
US6226088B1 (en) * 1999-01-29 2001-05-01 Barry P. Keane Optical web defect detection system
JP2001004347A (ja) * 1999-06-22 2001-01-12 Mitsubishi Electric Corp 欠陥検査装置
US7595880B2 (en) * 2005-11-08 2009-09-29 Lorillard Licensing Company, Llc Optical data capture and quality assurance
DE102006032404B4 (de) * 2006-07-13 2019-05-09 Byk-Gardner Gmbh Vorrichtung und Verfahren zur Bestimmung von Oberflächeneigenschaften
DE102009035183A1 (de) * 2009-07-29 2011-02-10 Giesecke & Devrient Gmbh Vorrichtung zur Handhabung von Wertdokumenten
RU2683971C2 (ru) * 2014-07-14 2019-04-03 С.А. Джузеппе Кристини С.П.А. Система контроля для контроля состояния полосы, движущейся по замкнутому маршруту в бумагоделательной машине, и бумагоделательная машина, содержащая эту систему

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510664A (en) * 1968-01-08 1970-05-05 Gaf Corp Automatic laser beam scanning film flaw detector
JPS5149234B2 (enExample) * 1971-08-31 1976-12-25
JPS5213952B2 (enExample) * 1972-07-31 1977-04-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125538A (en) * 1982-08-10 1984-03-07 Glaverbel Detecting sheet markings

Also Published As

Publication number Publication date
JPS5097389A (enExample) 1975-08-02
DE2363422B2 (de) 1976-04-15
US3972624A (en) 1976-08-03
BE823483A (nl) 1975-06-18
FR2255595B1 (enExample) 1978-12-29
DE2363422A1 (de) 1975-06-26
FR2255595A1 (enExample) 1975-07-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee