JPS539187A - Defect detector of sheet form objects - Google Patents

Defect detector of sheet form objects

Info

Publication number
JPS539187A
JPS539187A JP8317076A JP8317076A JPS539187A JP S539187 A JPS539187 A JP S539187A JP 8317076 A JP8317076 A JP 8317076A JP 8317076 A JP8317076 A JP 8317076A JP S539187 A JPS539187 A JP S539187A
Authority
JP
Japan
Prior art keywords
sheet
sheet form
defect detector
form objects
absent
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.)
Granted
Application number
JP8317076A
Other languages
Japanese (ja)
Other versions
JPS5735787B2 (en
Inventor
Kenji Ogino
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP8317076A priority Critical patent/JPS539187A/en
Publication of JPS539187A publication Critical patent/JPS539187A/en
Publication of JPS5735787B2 publication Critical patent/JPS5735787B2/ja
Granted 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
    • G01N21/8903—Optical details; Scanning details using a multiple detector array

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:To perform abnormality detection by utilizing the point that defect signals are produced practically at the same instant over the entire width of a sheet at the portions where the sheet is cut, near the end of the sheet and where the coating of the coated sheet is absent and identifying such cases as not defects but abnormality.
JP8317076A 1976-07-12 1976-07-12 Defect detector of sheet form objects Granted JPS539187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8317076A JPS539187A (en) 1976-07-12 1976-07-12 Defect detector of sheet form objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8317076A JPS539187A (en) 1976-07-12 1976-07-12 Defect detector of sheet form objects

Publications (2)

Publication Number Publication Date
JPS539187A true JPS539187A (en) 1978-01-27
JPS5735787B2 JPS5735787B2 (en) 1982-07-30

Family

ID=13794788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8317076A Granted JPS539187A (en) 1976-07-12 1976-07-12 Defect detector of sheet form objects

Country Status (1)

Country Link
JP (1) JPS539187A (en)

Also Published As

Publication number Publication date
JPS5735787B2 (en) 1982-07-30

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