SE389916B - Detektor for detektering av fel pa en rorlig yta - Google Patents

Detektor for detektering av fel pa en rorlig yta

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
English (en)
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/sv

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 Detektor for detektering av fel pa en rorlig yta SE389916B (sv)

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 (sv) 1976-11-22

Family

ID=10474428

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7215579A SE389916B (sv) 1971-11-30 1972-11-29 Detektor for detektering av fel pa en rorlig yta

Country Status (5)

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

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 (fi) 1980-01-10
NO136430B (sv) 1977-05-23
FI56452B (fi) 1979-09-28
IT973745B (it) 1974-06-10
NO136430C (no) 1977-08-31
JPS5518858B2 (sv) 1980-05-22
JPS4864983A (sv) 1973-09-07

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