JPS52123683A - Contactless surface flaw detection method and apparatus - Google Patents

Contactless surface flaw detection method and apparatus

Info

Publication number
JPS52123683A
JPS52123683A JP3993676A JP3993676A JPS52123683A JP S52123683 A JPS52123683 A JP S52123683A JP 3993676 A JP3993676 A JP 3993676A JP 3993676 A JP3993676 A JP 3993676A JP S52123683 A JPS52123683 A JP S52123683A
Authority
JP
Japan
Prior art keywords
detection method
flaw detection
surface flaw
contactless surface
images
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.)
Pending
Application number
JP3993676A
Other languages
Japanese (ja)
Inventor
Masane Suzuki
Nobuaki Oura
Kiyoshi Suzuki
Kenji Yasuda
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co 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
Application filed by Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP3993676A priority Critical patent/JPS52123683A/en
Publication of JPS52123683A publication Critical patent/JPS52123683A/en
Pending 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
    • G01N21/8901—Optical details; Scanning details

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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:The surface of a moving flat-plate-form object, particularly hot slab, red hot steel plate, etc., is detected for an every fixed section simultaneously with the movement of the object, and is then converted to images and is thereby observed and further the images are kept still for a fixed time, whereby their observation is mde possible.
JP3993676A 1976-04-09 1976-04-09 Contactless surface flaw detection method and apparatus Pending JPS52123683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3993676A JPS52123683A (en) 1976-04-09 1976-04-09 Contactless surface flaw detection method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3993676A JPS52123683A (en) 1976-04-09 1976-04-09 Contactless surface flaw detection method and apparatus

Publications (1)

Publication Number Publication Date
JPS52123683A true JPS52123683A (en) 1977-10-18

Family

ID=12566822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3993676A Pending JPS52123683A (en) 1976-04-09 1976-04-09 Contactless surface flaw detection method and apparatus

Country Status (1)

Country Link
JP (1) JPS52123683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887448A (en) * 1981-11-20 1983-05-25 Toei Denshi Kogyo Kk Self-inspecting device for surface flaw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887448A (en) * 1981-11-20 1983-05-25 Toei Denshi Kogyo Kk Self-inspecting device for surface flaw

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