DE2965385D1 - Method and device for inspecting a moving sheet material for streaklike defects - Google Patents

Method and device for inspecting a moving sheet material for streaklike defects

Info

Publication number
DE2965385D1
DE2965385D1 DE7979200564T DE2965385T DE2965385D1 DE 2965385 D1 DE2965385 D1 DE 2965385D1 DE 7979200564 T DE7979200564 T DE 7979200564T DE 2965385 T DE2965385 T DE 2965385T DE 2965385 D1 DE2965385 D1 DE 2965385D1
Authority
DE
Germany
Prior art keywords
inspecting
sheet material
moving sheet
streaklike
defects
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
DE7979200564T
Other languages
English (en)
Inventor
Jean Burtin
Maurits Geens
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 NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Application granted granted Critical
Publication of DE2965385D1 publication Critical patent/DE2965385D1/de
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
DE7979200564T 1978-10-19 1979-10-04 Method and device for inspecting a moving sheet material for streaklike defects Expired DE2965385D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7841163 1978-10-19

Publications (1)

Publication Number Publication Date
DE2965385D1 true DE2965385D1 (en) 1983-06-16

Family

ID=10500438

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979200564T Expired DE2965385D1 (en) 1978-10-19 1979-10-04 Method and device for inspecting a moving sheet material for streaklike defects

Country Status (5)

Country Link
US (1) US4274748A (de)
EP (1) EP0010791B1 (de)
JP (1) JPS5557137A (de)
CA (1) CA1127259A (de)
DE (1) DE2965385D1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348114A (en) * 1979-12-07 1982-09-07 Ciba-Geigy Ag Method of inspecting coated web material to detect the presence of downlines thereon
JPS5862252U (ja) * 1981-10-22 1983-04-26 コニカ株式会社 表面検査装置
EP0079851A1 (de) * 1981-11-04 1983-05-25 Ciba-Geigy Ag Verfahren und Vorrichtung zur Überprüfung von Bahnmaterial
JPS58106409A (ja) * 1981-12-18 1983-06-24 Seiko Instr & Electronics Ltd 部品の姿勢判別装置
CH663474A5 (de) * 1984-04-24 1987-12-15 Zellweger Uster Ag Verfahren und vorrichtung zur automatischen ueberwachung von gewebebahnen.
US4722297A (en) * 1985-03-25 1988-02-02 The First National Bank Film coater
US4612875A (en) * 1985-03-25 1986-09-23 Qmi Corporation Film coater
US5118195A (en) * 1990-09-10 1992-06-02 Rkb Opto-Electrics, Inc. Area scan camera system for detecting streaks and scratches
US5184190A (en) * 1991-05-28 1993-02-02 Winzen International, Inc. Method and apparatus for detecting flaws and defects in heat seals
US5668887A (en) * 1992-05-29 1997-09-16 Eastman Kodak Company Coating density analyzer and method using non-synchronous TDI camera
JPH0743313A (ja) * 1993-07-29 1995-02-14 Canon Inc 異物検査装置及びそれを用いた半導体デバイスの 製造方法
DE19528519A1 (de) * 1995-08-03 1997-02-06 Tzn Forschung & Entwicklung Vorrichtung zur Detektion streifenförmiger Oberflächenfehler
BRPI0720784A2 (pt) * 2007-01-11 2014-01-28 3M Innovative Properties Co Sensor de manta em posição longitudinal
BRPI0811658A2 (pt) * 2007-06-19 2015-02-10 3M Innovative Properties Co "sistemas e métodos para idicação da posição deuma manta"
EP2165162A2 (de) * 2007-06-19 2010-03-24 3M Innovative Properties Company Totalreflektions-verschiebungsskala
US9513412B2 (en) * 2007-06-19 2016-12-06 3M Innovative Properties Company Systems and methods for fabricating displacement scales
CN102317882B (zh) 2008-12-29 2015-04-22 3M创新有限公司 使用幅材基准的锁相的幅材位置信号
KR101578259B1 (ko) 2008-12-30 2015-12-16 쓰리엠 이노베이티브 프로퍼티즈 컴파니 기점을 기재 상에 형성하기 위한 장치 및 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700876A (en) * 1970-12-09 1972-10-24 Us Navy Reduced time delay auto-correlation signal processor
US3835332A (en) * 1973-06-04 1974-09-10 Eastman Kodak Co Inspection apparatus for detecting defects in a web
US3972624A (en) * 1973-12-20 1976-08-03 Agfa-Gevaert, A.G. Process and apparatus for detecting longitudinal faults on moving webs of material
US4005281A (en) * 1975-05-14 1977-01-25 E. I. Du Pont De Nemours And Company Defect identification with normalizing of gain function in optical-electrical inspection
GB1526375A (en) * 1977-03-23 1978-09-27 Ciba Geigy Ag Method of identifying streaks on a web

Also Published As

Publication number Publication date
EP0010791B1 (de) 1983-05-11
EP0010791A1 (de) 1980-05-14
JPS5557137A (en) 1980-04-26
CA1127259A (en) 1982-07-06
US4274748A (en) 1981-06-23

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee