SE389916B - DETECTOR FOR DETECTING ERRORS ON A MOVABLE SURFACE - Google Patents

DETECTOR FOR DETECTING ERRORS ON A MOVABLE SURFACE

Info

Publication number
SE389916B
SE389916B SE7215579A SE1557972A SE389916B SE 389916 B SE389916 B SE 389916B SE 7215579 A SE7215579 A SE 7215579A SE 1557972 A SE1557972 A SE 1557972A SE 389916 B SE389916 B SE 389916B
Authority
SE
Sweden
Prior art keywords
detector
movable surface
detecting errors
errors
detecting
Prior art date
Application number
SE7215579A
Other languages
Swedish (sv)
Inventor
G M 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
Publication of SE389916B publication Critical patent/SE389916B/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)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Textile Engineering (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)
SE7215579A 1971-11-30 1972-11-29 DETECTOR FOR DETECTING ERRORS ON A MOVABLE SURFACE SE389916B (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
SE389916B true SE389916B (en) 1976-11-22

Family

ID=10474428

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7215579A SE389916B (en) 1971-11-30 1972-11-29 DETECTOR FOR DETECTING ERRORS ON A MOVABLE 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761610A (en) * 1985-10-18 1988-08-02 Asea AB & Tornbloms Kvalitetskontrollar Apparatus for determining the position of surface defects of a test objects with respect to an edge thereof

Families Citing this family (3)

* 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761610A (en) * 1985-10-18 1988-08-02 Asea AB & Tornbloms Kvalitetskontrollar Apparatus for determining the position of surface defects of a test objects with respect to an edge thereof

Also Published As

Publication number Publication date
FI56452C (en) 1980-01-10
JPS5518858B2 (en) 1980-05-22
JPS4864983A (en) 1973-09-07
NO136430B (en) 1977-05-23
IT973745B (en) 1974-06-10
NO136430C (en) 1977-08-31
FI56452B (en) 1979-09-28

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