CH417151A - Method and device for determining defects in webs or sheets made of paper or cardboard and for controlling a sorting or marking device - Google Patents

Method and device for determining defects in webs or sheets made of paper or cardboard and for controlling a sorting or marking device

Info

Publication number
CH417151A
CH417151A CH411664A CH411664A CH417151A CH 417151 A CH417151 A CH 417151A CH 411664 A CH411664 A CH 411664A CH 411664 A CH411664 A CH 411664A CH 417151 A CH417151 A CH 417151A
Authority
CH
Switzerland
Prior art keywords
webs
cardboard
sorting
paper
controlling
Prior art date
Application number
CH411664A
Other languages
German (de)
Inventor
Lippke Paul
Original Assignee
Lippke Paul
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 Lippke Paul filed Critical Lippke Paul
Publication of CH417151A publication Critical patent/CH417151A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/24—Investigating the presence of flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34—Paper
    • G01N33/346—Paper sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Sorting Of Articles (AREA)
CH411664A 1964-03-21 1964-04-01 Method and device for determining defects in webs or sheets made of paper or cardboard and for controlling a sorting or marking device CH417151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0047368 1964-03-21

Publications (1)

Publication Number Publication Date
CH417151A true CH417151A (en) 1966-07-15

Family

ID=7272002

Family Applications (1)

Application Number Title Priority Date Filing Date
CH411664A CH417151A (en) 1964-03-21 1964-04-01 Method and device for determining defects in webs or sheets made of paper or cardboard and for controlling a sorting or marking device

Country Status (2)

Country Link
CH (1) CH417151A (en)
GB (1) GB1085621A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362835A1 (en) * 1972-12-21 1974-07-04 Oesterr Studien Atomenergie DEVICE FOR CONTACTLESS DETECTION OR MEASUREMENT OF PREFERRED LIQUID COATINGS
CN110836914A (en) * 2019-11-14 2020-02-25 河海大学常州校区 Book missing and folding defect detection system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7605593B2 (en) * 2007-01-16 2009-10-20 The Boeing Company Method and apparatus for detecting inconsistencies in cured resin structures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362835A1 (en) * 1972-12-21 1974-07-04 Oesterr Studien Atomenergie DEVICE FOR CONTACTLESS DETECTION OR MEASUREMENT OF PREFERRED LIQUID COATINGS
CN110836914A (en) * 2019-11-14 2020-02-25 河海大学常州校区 Book missing and folding defect detection system and method

Also Published As

Publication number Publication date
GB1085621A (en) 1967-10-04

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