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FI924276A0 - Method and apparatus for detecting inhomogeneity in paper structure - Google Patents

Method and apparatus for detecting inhomogeneity in paper structure

Info

Publication number
FI924276A0
FI924276A0 FI924276A FI924276A FI924276A0 FI 924276 A0 FI924276 A0 FI 924276A0 FI 924276 A FI924276 A FI 924276A FI 924276 A FI924276 A FI 924276A FI 924276 A0 FI924276 A0 FI 924276A0
Authority
FI
Finland
Prior art keywords
paper structure
inhomogeneity
detecting
detecting inhomogeneity
paper
Prior art date
Application number
FI924276A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI924276A (en
FI92438B (en
FI92438C (en
Inventor
Harri Kiiskinen
Pekka Pakarinen
Risto Ryymin
Original Assignee
Valtion Teknillinen
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 Valtion Teknillinen filed Critical Valtion Teknillinen
Priority to FI924276A priority Critical patent/FI92438C/en
Publication of FI924276A0 publication Critical patent/FI924276A0/en
Priority to PCT/FI1993/000381 priority patent/WO1994007126A1/en
Publication of FI924276A publication Critical patent/FI924276A/en
Publication of FI92438B publication Critical patent/FI92438B/en
Application granted granted Critical
Publication of FI92438C publication Critical patent/FI92438C/en

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Paper (AREA)
FI924276A 1992-09-24 1992-09-24 Method and apparatus for detecting inhomogeneity of paper structure FI92438C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI924276A FI92438C (en) 1992-09-24 1992-09-24 Method and apparatus for detecting inhomogeneity of paper structure
PCT/FI1993/000381 WO1994007126A1 (en) 1992-09-24 1993-09-23 A method and equipment for discerning inhomogeneity in the structure of paper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI924276 1992-09-24
FI924276A FI92438C (en) 1992-09-24 1992-09-24 Method and apparatus for detecting inhomogeneity of paper structure

Publications (4)

Publication Number Publication Date
FI924276A0 true FI924276A0 (en) 1992-09-24
FI924276A FI924276A (en) 1994-03-25
FI92438B FI92438B (en) 1994-07-29
FI92438C FI92438C (en) 1994-11-10

Family

ID=8535919

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924276A FI92438C (en) 1992-09-24 1992-09-24 Method and apparatus for detecting inhomogeneity of paper structure

Country Status (2)

Country Link
FI (1) FI92438C (en)
WO (1) WO1994007126A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483721A (en) * 1966-12-30 1969-12-16 Automation Ind Inc Material tester
US3494173A (en) * 1967-10-20 1970-02-10 Cons Paper Inc Method and apparatus for testing printing paper for blistering
US4246775A (en) * 1979-06-08 1981-01-27 Philip Morris Incorporated Porosity measuring apparatus and perforating system using same
US4602160A (en) * 1983-09-28 1986-07-22 Sentrol Systems Ltd. Infrared constituent analyzer and control system
US4823008A (en) * 1987-11-05 1989-04-18 Process Automation Business, Inc. Apparatus and methods employing infrared absorption means to measure the moisture content of heavy grades of paper

Also Published As

Publication number Publication date
WO1994007126A1 (en) 1994-03-31
FI924276A (en) 1994-03-25
FI92438B (en) 1994-07-29
FI92438C (en) 1994-11-10

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Legal Events

Date Code Title Description
BB Publication of examined application