GB1394112A - Method of detecting surface defects on a moving material - Google Patents

Method of detecting surface defects on a moving material

Info

Publication number
GB1394112A
GB1394112A GB1872472A GB1872472A GB1394112A GB 1394112 A GB1394112 A GB 1394112A GB 1872472 A GB1872472 A GB 1872472A GB 1872472 A GB1872472 A GB 1872472A GB 1394112 A GB1394112 A GB 1394112A
Authority
GB
United Kingdom
Prior art keywords
april
degrees
angle
surface defects
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
GB1872472A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1394112A publication Critical patent/GB1394112A/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

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)
GB1872472A 1971-04-23 1972-04-21 Method of detecting surface defects on a moving material Expired GB1394112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2610271 1971-04-23

Publications (1)

Publication Number Publication Date
GB1394112A true GB1394112A (en) 1975-05-14

Family

ID=12184216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1872472A Expired GB1394112A (en) 1971-04-23 1972-04-21 Method of detecting surface defects on a moving material

Country Status (3)

Country Link
DE (1) DE2156638A1 (enExample)
FR (1) FR2134974A5 (enExample)
GB (1) GB1394112A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724322A (en) * 1986-03-03 1988-02-09 Applied Materials, Inc. Method for non-contact xyz position sensing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006072C2 (de) * 1980-02-19 1984-11-29 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Fehlstellenermittlungsvorrichtung für Materialbahnen
DE3544871A1 (de) * 1984-12-19 1986-09-11 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optisches fehlersuchgeraet
DE3734294A1 (de) * 1987-10-09 1989-04-27 Sick Optik Elektronik Erwin Optische oberflaechen-inspektionsvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724322A (en) * 1986-03-03 1988-02-09 Applied Materials, Inc. Method for non-contact xyz position sensing

Also Published As

Publication number Publication date
FR2134974A5 (enExample) 1972-12-08
DE2156638A1 (de) 1972-11-16

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Legal Events

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