JPS5681439A - Discriminatoin device for paper leaf - Google Patents

Discriminatoin device for paper leaf

Info

Publication number
JPS5681439A
JPS5681439A JP15804679A JP15804679A JPS5681439A JP S5681439 A JPS5681439 A JP S5681439A JP 15804679 A JP15804679 A JP 15804679A JP 15804679 A JP15804679 A JP 15804679A JP S5681439 A JPS5681439 A JP S5681439A
Authority
JP
Japan
Prior art keywords
paper leaf
light
signal
waveform
detected
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
JP15804679A
Other languages
Japanese (ja)
Inventor
Takeshi Ishida
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15804679A priority Critical patent/JPS5681439A/en
Publication of JPS5681439A publication Critical patent/JPS5681439A/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

Abstract

PURPOSE:To detect easily the properties of the paper leaf by a method wherein the light from two kinds of light sources is applied on one surface of the paper leaf and on the other surface thereof on the opposite side respectively and the reflected light and the transmitted light are transduced photoelectrically by one sensor. CONSTITUTION:When the paper leaf P is carried in the direction shown by an arrow and enters a light-receiving passage, a photoelectric signal which is outputted from the line sensor 4 and scanned in the direction of carriage and in the perpendicular direction is obtained. The time of generation of the waveform of the signal is measured and the continuance of a number of scanning of same generation time is detected, whereby the size of the paper leaf P is measured. Furthermore, scribbling on the paper leaf P, holes and the breakage and folding of the edge thereof, etc. can be detected from the shape of the waveform of the scanning signal.
JP15804679A 1979-12-07 1979-12-07 Discriminatoin device for paper leaf Pending JPS5681439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15804679A JPS5681439A (en) 1979-12-07 1979-12-07 Discriminatoin device for paper leaf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15804679A JPS5681439A (en) 1979-12-07 1979-12-07 Discriminatoin device for paper leaf

Publications (1)

Publication Number Publication Date
JPS5681439A true JPS5681439A (en) 1981-07-03

Family

ID=15663101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15804679A Pending JPS5681439A (en) 1979-12-07 1979-12-07 Discriminatoin device for paper leaf

Country Status (1)

Country Link
JP (1) JPS5681439A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156346A2 (en) * 1984-03-30 1985-10-02 Eisai Co., Ltd. Method and apparatus for detecting inferior container
JP2009210559A (en) * 2008-02-08 2009-09-17 Toshiba Corp Defacement degree determination apparatus and defacement degree determination method for printed matter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156346A2 (en) * 1984-03-30 1985-10-02 Eisai Co., Ltd. Method and apparatus for detecting inferior container
JP2009210559A (en) * 2008-02-08 2009-09-17 Toshiba Corp Defacement degree determination apparatus and defacement degree determination method for printed matter
US8294945B2 (en) 2008-02-08 2012-10-23 Kabushiki Kaisha Toshiba Defacement degree determination apparatus and defacement degree determination method

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