CA2080587C - Capteur de particules de poussiere fonctionnant en direct - Google Patents

Capteur de particules de poussiere fonctionnant en direct

Info

Publication number
CA2080587C
CA2080587C CA 2080587 CA2080587A CA2080587C CA 2080587 C CA2080587 C CA 2080587C CA 2080587 CA2080587 CA 2080587 CA 2080587 A CA2080587 A CA 2080587A CA 2080587 C CA2080587 C CA 2080587C
Authority
CA
Canada
Prior art keywords
magnitude
focus
web
light
moving paper
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 - Fee Related
Application number
CA 2080587
Other languages
English (en)
Inventor
Byron Dale Jordan
Nam Gia Nguyen
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.)
Pulp and Paper Research Institute of Canada
Original Assignee
Pulp and Paper Research Institute of Canada
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 Pulp and Paper Research Institute of Canada filed Critical Pulp and Paper Research Institute of Canada
Priority to CA 2080587 priority Critical patent/CA2080587C/fr
Application granted granted Critical
Publication of CA2080587C publication Critical patent/CA2080587C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
CA 2080587 1990-05-23 1990-05-23 Capteur de particules de poussiere fonctionnant en direct Expired - Fee Related CA2080587C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2080587 CA2080587C (fr) 1990-05-23 1990-05-23 Capteur de particules de poussiere fonctionnant en direct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2080587 CA2080587C (fr) 1990-05-23 1990-05-23 Capteur de particules de poussiere fonctionnant en direct

Publications (1)

Publication Number Publication Date
CA2080587C true CA2080587C (fr) 1995-10-24

Family

ID=4150548

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2080587 Expired - Fee Related CA2080587C (fr) 1990-05-23 1990-05-23 Capteur de particules de poussiere fonctionnant en direct

Country Status (1)

Country Link
CA (1) CA2080587C (fr)

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Legal Events

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