GB1366369A - Detection of faults on surfaces - Google Patents

Detection of faults on surfaces

Info

Publication number
GB1366369A
GB1366369A GB5562671A GB5562671A GB1366369A GB 1366369 A GB1366369 A GB 1366369A GB 5562671 A GB5562671 A GB 5562671A GB 5562671 A GB5562671 A GB 5562671A GB 1366369 A GB1366369 A GB 1366369A
Authority
GB
United Kingdom
Prior art keywords
pulse
web
edge
fault
pulses
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.)
Expired
Application number
GB5562671A
Other languages
English (en)
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB5562671A priority Critical patent/GB1366369A/en
Priority to NO4252/72A priority patent/NO136430C/no
Priority to US00309719A priority patent/US3803474A/en
Priority to IT54300/72A priority patent/IT973745B/it
Priority to DE2258158A priority patent/DE2258158C3/de
Priority to FR7242397A priority patent/FR2163148A5/fr
Priority to SE7215579A priority patent/SE389916B/xx
Priority to JP12029572A priority patent/JPS5518858B2/ja
Priority to FI3397/72A priority patent/FI56452C/fi
Publication of GB1366369A publication Critical patent/GB1366369A/en
Expired 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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB5562671A 1971-11-30 1971-11-30 Detection of faults on surfaces Expired GB1366369A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB5562671A GB1366369A (en) 1971-11-30 1971-11-30 Detection of faults on surfaces
NO4252/72A NO136430C (no) 1971-11-30 1972-11-21 Kretsanordning for bruk sammen med en feildetektor for en bevegelig flate
US00309719A US3803474A (en) 1971-11-30 1972-11-27 Detection of blemishes on surfaces
IT54300/72A IT973745B (it) 1971-11-30 1972-11-27 Dispositivo per la rivelazione di difetti su una superficie in movimento
DE2258158A DE2258158C3 (de) 1971-11-30 1972-11-28 Schaltungsanordnung für einen Detektor zum Feststellen von Fehlern in einer bewegten Materialbahn
FR7242397A FR2163148A5 (enrdf_load_stackoverflow) 1971-11-30 1972-11-29
SE7215579A SE389916B (sv) 1971-11-30 1972-11-29 Detektor for detektering av fel pa en rorlig yta
JP12029572A JPS5518858B2 (enrdf_load_stackoverflow) 1971-11-30 1972-11-30
FI3397/72A FI56452C (fi) 1971-11-30 1972-11-30 Detektor foer detektering av fel i en roerlig yta

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5562671A GB1366369A (en) 1971-11-30 1971-11-30 Detection of faults on surfaces
US00309719A US3803474A (en) 1971-11-30 1972-11-27 Detection of blemishes on surfaces

Publications (1)

Publication Number Publication Date
GB1366369A true GB1366369A (en) 1974-09-11

Family

ID=26267566

Family Applications (1)

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

Country Status (4)

Country Link
US (1) US3803474A (enrdf_load_stackoverflow)
DE (1) DE2258158C3 (enrdf_load_stackoverflow)
FR (1) FR2163148A5 (enrdf_load_stackoverflow)
GB (1) GB1366369A (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131274A (en) * 1975-05-10 1976-11-15 Fujitsu Ltd Tip bonding method
JPS51131273A (en) * 1975-05-10 1976-11-15 Fujitsu Ltd Wire bonding process
DE2717507A1 (de) * 1977-04-20 1978-10-26 Bosch Gmbh Robert Einrichtung und verfahren zur pruefung und erkennung von teilen
US4338822A (en) * 1978-06-20 1982-07-13 Sumitomo Metal Industries, Ltd. Method and apparatus for non-contact ultrasonic flaw detection
DE2925734C3 (de) * 1979-06-26 1982-06-24 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optisches Fehlersuchgerät für Materialbahnen
US4522497A (en) * 1981-06-17 1985-06-11 Ciba Geigy Ag Web scanning apparatus
SE456532B (sv) * 1985-10-18 1988-10-10 Asea Ab Arrangemang for ytavsokning av ett provobjekt
US5867099A (en) * 1997-11-24 1999-02-02 Keeter; Daniel R. Motion sensing, lighting and alarming system
DE19803085A1 (de) * 1998-01-28 1999-08-05 Metz Albert Ria Electronic Anschlußklemme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL130064C (enrdf_load_stackoverflow) * 1959-12-22
NL279098A (enrdf_load_stackoverflow) * 1961-05-31

Also Published As

Publication number Publication date
DE2258158B2 (de) 1980-10-23
FR2163148A5 (enrdf_load_stackoverflow) 1973-07-20
DE2258158A1 (de) 1973-06-07
US3803474A (en) 1974-04-09
DE2258158C3 (de) 1981-09-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee