CA617188A - Detecting surface conditions of sheet materials - Google Patents

Detecting surface conditions of sheet materials

Info

Publication number
CA617188A
CA617188A CA617188A CA617188DA CA617188A CA 617188 A CA617188 A CA 617188A CA 617188 A CA617188 A CA 617188A CA 617188D A CA617188D A CA 617188DA CA 617188 A CA617188 A CA 617188A
Authority
CA
Canada
Prior art keywords
sheet materials
surface conditions
detecting surface
detecting
conditions
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
CA617188A
Inventor
C. Woods Robert
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.)
American Brass Co
Original Assignee
American Brass Co
Publication date
Application granted granted Critical
Publication of CA617188A publication Critical patent/CA617188A/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
    • G01N21/8901—Optical details; Scanning details
CA617188A Detecting surface conditions of sheet materials Expired CA617188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA617188T

Publications (1)

Publication Number Publication Date
CA617188A true CA617188A (en) 1961-03-28

Family

ID=210624

Family Applications (1)

Application Number Title Priority Date Filing Date
CA617188A Expired CA617188A (en) Detecting surface conditions of sheet materials

Country Status (1)

Country Link
CA (1) CA617188A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108533A (en) * 1975-11-21 1978-08-22 Erwin Sick Gesellschaft Mit Beschrankter Haftung Optik-Elektronik Apparatus for combining light emanating from a linear scanning field
US4402607A (en) * 1980-05-16 1983-09-06 Gca Corporation Automatic detector for microscopic dust on large-area, optically unpolished surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108533A (en) * 1975-11-21 1978-08-22 Erwin Sick Gesellschaft Mit Beschrankter Haftung Optik-Elektronik Apparatus for combining light emanating from a linear scanning field
US4402607A (en) * 1980-05-16 1983-09-06 Gca Corporation Automatic detector for microscopic dust on large-area, optically unpolished surfaces

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