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GB2018985B - Detecting flaws in sheets - Google Patents

Detecting flaws in sheets

Info

Publication number
GB2018985B
GB2018985B GB7916525A GB7916525A GB2018985B GB 2018985 B GB2018985 B GB 2018985B GB 7916525 A GB7916525 A GB 7916525A GB 7916525 A GB7916525 A GB 7916525A GB 2018985 B GB2018985 B GB 2018985B
Authority
GB
United Kingdom
Prior art keywords
sheets
detecting flaws
flaws
detecting
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
GB7916525A
Other versions
GB2018985A (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.)
SIRA INSTITUTE
Original Assignee
SIRA INSTITUTE
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 SIRA INSTITUTE filed Critical SIRA INSTITUTE
Priority to GB7916525A priority Critical patent/GB2018985B/en
Publication of GB2018985A publication Critical patent/GB2018985A/en
Priority to US06/144,938 priority patent/US4323311A/en
Priority to DE3017672A priority patent/DE3017672A1/en
Priority to FR8010418A priority patent/FR2456306A1/en
Application granted granted Critical
Publication of GB2018985B publication Critical patent/GB2018985B/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
    • G01N21/8901—Optical details; Scanning details

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB7916525A 1978-02-13 1979-05-11 Detecting flaws in sheets Expired GB2018985B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7916525A GB2018985B (en) 1978-02-13 1979-05-11 Detecting flaws in sheets
US06/144,938 US4323311A (en) 1979-05-11 1980-04-29 Apparatus and method for detecting holes in sheet material
DE3017672A DE3017672A1 (en) 1979-05-11 1980-05-08 DEVICE AND METHOD FOR DETECTING HOLES IN PLATE, SHEET OR FILM MATERIAL
FR8010418A FR2456306A1 (en) 1979-05-11 1980-05-09 METHOD AND APPARATUS FOR DETECTING HOLES IN SHEET MATERIAL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB562678 1978-02-13
GB7916525A GB2018985B (en) 1978-02-13 1979-05-11 Detecting flaws in sheets

Publications (2)

Publication Number Publication Date
GB2018985A GB2018985A (en) 1979-10-24
GB2018985B true GB2018985B (en) 1983-01-06

Family

ID=26240031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7916525A Expired GB2018985B (en) 1978-02-13 1979-05-11 Detecting flaws in sheets

Country Status (1)

Country Link
GB (1) GB2018985B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522497A (en) * 1981-06-17 1985-06-11 Ciba Geigy Ag Web scanning apparatus
GB2117897B (en) * 1982-03-03 1986-04-16 Sira Ltd Detecting surface defects
GB2159271B (en) * 1984-04-27 1988-05-18 Nissan Motor Surface flaw detecting method and apparatus
CN107345918B (en) * 2017-08-16 2023-05-23 广西大学 A kind of board quality detection device and method

Also Published As

Publication number Publication date
GB2018985A (en) 1979-10-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee