FR2345717A1 - Procede et dispositif pour l'observation optique de la surface d'un materiau lamine deplace rapidement - Google Patents

Procede et dispositif pour l'observation optique de la surface d'un materiau lamine deplace rapidement

Info

Publication number
FR2345717A1
FR2345717A1 FR7708863A FR7708863A FR2345717A1 FR 2345717 A1 FR2345717 A1 FR 2345717A1 FR 7708863 A FR7708863 A FR 7708863A FR 7708863 A FR7708863 A FR 7708863A FR 2345717 A1 FR2345717 A1 FR 2345717A1
Authority
FR
France
Prior art keywords
cameras
lighting conditions
images
laminated surface
stroboscopic
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.)
Granted
Application number
FR7708863A
Other languages
English (en)
French (fr)
Other versions
FR2345717B3 (enrdf_load_stackoverflow
Inventor
Wilhelm Tappe
Hermann-Josef Kopineck
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.)
Hoesch Werke AG
Original Assignee
Hoesch Werke 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
Application filed by Hoesch Werke AG filed Critical Hoesch Werke AG
Publication of FR2345717A1 publication Critical patent/FR2345717A1/fr
Application granted granted Critical
Publication of FR2345717B3 publication Critical patent/FR2345717B3/fr
Granted 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)
FR7708863A 1976-03-24 1977-03-24 Procede et dispositif pour l'observation optique de la surface d'un materiau lamine deplace rapidement Granted FR2345717A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762612482 DE2612482A1 (de) 1976-03-24 1976-03-24 Verfahren und einrichtung zur optischen beobachtung der oberflaeche von schnell bewegtem walzmaterial

Publications (2)

Publication Number Publication Date
FR2345717A1 true FR2345717A1 (fr) 1977-10-21
FR2345717B3 FR2345717B3 (enrdf_load_stackoverflow) 1980-04-04

Family

ID=5973315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708863A Granted FR2345717A1 (fr) 1976-03-24 1977-03-24 Procede et dispositif pour l'observation optique de la surface d'un materiau lamine deplace rapidement

Country Status (5)

Country Link
BE (1) BE852782A (enrdf_load_stackoverflow)
DE (1) DE2612482A1 (enrdf_load_stackoverflow)
FR (1) FR2345717A1 (enrdf_load_stackoverflow)
IT (1) IT1077953B (enrdf_load_stackoverflow)
LU (1) LU76996A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472747A1 (fr) * 1979-12-29 1981-07-03 Hoesch Estel Werke Ag Dispositif pour deceler les defauts sur la surface d'une bande animee d'un mouvement rapide dans un train de laminoir
WO2001040780A1 (en) * 1999-12-06 2001-06-07 Centro Sviluppo Materiali S.P.A. Imaging system for detecting surface defects and evaluating optical density

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932660A1 (de) * 1979-08-11 1981-02-26 Feldmuehle Ag Verfahren und vorrichtung zum definieren der fehlerart
US4675730A (en) * 1985-09-06 1987-06-23 Aluminum Company Of America Video surface inspection system
GB9614073D0 (en) * 1996-07-04 1996-09-04 Surface Inspection Ltd Visual inspection apparatus
FI20000032A7 (fi) * 2000-01-07 2001-10-26 Spectra Physics Visiontech Oy Järjestely ja menetelmä pinnan tarkistamiseksi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472747A1 (fr) * 1979-12-29 1981-07-03 Hoesch Estel Werke Ag Dispositif pour deceler les defauts sur la surface d'une bande animee d'un mouvement rapide dans un train de laminoir
WO2001040780A1 (en) * 1999-12-06 2001-06-07 Centro Sviluppo Materiali S.P.A. Imaging system for detecting surface defects and evaluating optical density

Also Published As

Publication number Publication date
DE2612482A1 (de) 1977-10-06
FR2345717B3 (enrdf_load_stackoverflow) 1980-04-04
IT1077953B (it) 1985-05-08
BE852782A (fr) 1977-09-23
LU76996A1 (enrdf_load_stackoverflow) 1977-07-18

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Legal Events

Date Code Title Description
ST Notification of lapse