IT973745B - DEVICE FOR DETECTION OF DEFECTS ON A MOVING SURFACE - Google Patents

DEVICE FOR DETECTION OF DEFECTS ON A MOVING SURFACE

Info

Publication number
IT973745B
IT973745B IT54300/72A IT5430072A IT973745B IT 973745 B IT973745 B IT 973745B IT 54300/72 A IT54300/72 A IT 54300/72A IT 5430072 A IT5430072 A IT 5430072A IT 973745 B IT973745 B IT 973745B
Authority
IT
Italy
Prior art keywords
defects
detection
moving surface
moving
Prior art date
Application number
IT54300/72A
Other languages
Italian (it)
Inventor
G Clarke
Original Assignee
Ferranti 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
Priority claimed from GB5562671A external-priority patent/GB1366369A/en
Application filed by Ferranti Ltd filed Critical Ferranti Ltd
Application granted granted Critical
Publication of IT973745B publication Critical patent/IT973745B/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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34—Paper

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Length Measuring Devices By Optical Means (AREA)
IT54300/72A 1971-11-30 1972-11-27 DEVICE FOR DETECTION OF DEFECTS ON A MOVING SURFACE IT973745B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5562671A GB1366369A (en) 1971-11-30 1971-11-30 Detection of faults on surfaces

Publications (1)

Publication Number Publication Date
IT973745B true IT973745B (en) 1974-06-10

Family

ID=10474428

Family Applications (1)

Application Number Title Priority Date Filing Date
IT54300/72A IT973745B (en) 1971-11-30 1972-11-27 DEVICE FOR DETECTION OF DEFECTS ON A MOVING SURFACE

Country Status (5)

Country Link
JP (1) JPS5518858B2 (en)
FI (1) FI56452C (en)
IT (1) IT973745B (en)
NO (1) NO136430C (en)
SE (1) SE389916B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113783A (en) * 1975-03-31 1976-10-07 Asahi Chem Ind Co Ltd Defects detector of nonwoven fabric
US4247204A (en) * 1979-02-26 1981-01-27 Intec Corporation Method and apparatus for a web edge tracking flaw detection system
JPS57157622A (en) * 1981-03-24 1982-09-29 Hitachi Denshi Ltd Saw tooth wave generating circuit
SE456532B (en) * 1985-10-18 1988-10-10 Asea Ab ARRANGEMENTS FOR SURFACE SEQUENCE OF A PROVOB

Also Published As

Publication number Publication date
SE389916B (en) 1976-11-22
FI56452C (en) 1980-01-10
JPS5518858B2 (en) 1980-05-22
NO136430C (en) 1977-08-31
JPS4864983A (en) 1973-09-07
NO136430B (en) 1977-05-23
FI56452B (en) 1979-09-28

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