IT963349B - PROCEDURE TO RECOGNIZE DEFECTS IN PAPER OR PAPER TAPES RESPECTIVELY - Google Patents

PROCEDURE TO RECOGNIZE DEFECTS IN PAPER OR PAPER TAPES RESPECTIVELY

Info

Publication number
IT963349B
IT963349B IT2740272A IT2740272A IT963349B IT 963349 B IT963349 B IT 963349B IT 2740272 A IT2740272 A IT 2740272A IT 2740272 A IT2740272 A IT 2740272A IT 963349 B IT963349 B IT 963349B
Authority
IT
Italy
Prior art keywords
paper
procedure
tapes respectively
recognize defects
defects
Prior art date
Application number
IT2740272A
Other languages
Italian (it)
Inventor
W Obrecht
Original Assignee
G A O Ges Mbh
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 G A O Ges Mbh filed Critical G A O Ges Mbh
Application granted granted Critical
Publication of IT963349B publication Critical patent/IT963349B/en

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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956—Inspecting patterns on the surface of objects

Landscapes

  • 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)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
IT2740272A 1971-07-30 1972-07-26 PROCEDURE TO RECOGNIZE DEFECTS IN PAPER OR PAPER TAPES RESPECTIVELY IT963349B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT665271A AT338544B (en) 1971-07-30 1971-07-30 DEVICE FOR DETECTING DEFECTS IN PAPER TRAILS

Publications (1)

Publication Number Publication Date
IT963349B true IT963349B (en) 1974-01-10

Family

ID=3588462

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2740272A IT963349B (en) 1971-07-30 1972-07-26 PROCEDURE TO RECOGNIZE DEFECTS IN PAPER OR PAPER TAPES RESPECTIVELY

Country Status (5)

Country Link
AT (1) AT338544B (en)
DE (1) DE2234818C3 (en)
FR (1) FR2149120A5 (en)
GB (1) GB1380452A (en)
IT (1) IT963349B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH608628A5 (en) * 1975-11-21 1979-01-15 Sick Optik Elektronik Erwin
US4512662A (en) * 1981-07-06 1985-04-23 Tobias Philip E Plate scanner for printing plates
DE3713279C2 (en) * 1987-04-18 1994-01-20 Laser Sorter Gmbh Process for the detection of dimensional errors and / or the distortion of paper webs or format papers
DE4232538A1 (en) * 1992-09-29 1994-03-31 Laser Sorter Gmbh Testing moving, opaque material paths for the presence of holes - detecting light passing through material from transmitting to reception diodes
DE4232550A1 (en) * 1992-09-29 1994-03-31 Laser Sorter Gmbh Measuring sizes of defects, esp. holes in materials - detecting pulsed light of varying intensity passing through or reflected by material
CN109596623B (en) * 2018-12-21 2021-07-06 无锡先导智能装备股份有限公司 Defect detection method and device

Also Published As

Publication number Publication date
DE2234818B2 (en) 1974-05-30
DE2234818C3 (en) 1975-01-16
GB1380452A (en) 1975-01-15
ATA665271A (en) 1976-12-15
FR2149120A5 (en) 1973-03-23
AT338544B (en) 1977-08-25
DE2234818A1 (en) 1973-01-25

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