GB1348982A - Method of detecting changes in moving material - Google Patents

Method of detecting changes in moving material

Info

Publication number
GB1348982A
GB1348982A GB1348982DA GB1348982A GB 1348982 A GB1348982 A GB 1348982A GB 1348982D A GB1348982D A GB 1348982DA GB 1348982 A GB1348982 A GB 1348982A
Authority
GB
United Kingdom
Prior art keywords
paper
electrodes
adhesive
moving
seam
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
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.)
Dickinson Robinson Group Ltd
Original Assignee
Dickinson Robinson Group 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 Dickinson Robinson Group Ltd filed Critical Dickinson Robinson Group Ltd
Publication of GB1348982A publication Critical patent/GB1348982A/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
    • 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
    • G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
    • G01B7/085—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring thickness of coating

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1348982 Testing physical properties electrically DICKINSON ROBINSON GROUP 20 May 1971 [14 May 1970] 23417/70 Heading G1N The continuity of a seam of adhesive on a moving web of paper or on moving carton blanks, or the presence of a plain or magnetic ink stripe on a moving material is detected by measuring the capacitive coupling between a pair of electrodes close to or contacting the same surface of the tested article in the region where the adhesive or ink should be. As shown, a seam 14 of adhesive is applied by a roller 12 to bag-making paper in a tubing machine. Three brass strip electrodes 18, 19, 20 contact the undersurface of the paper. Electrode 18 is connected to an electrical pulse generator and electrodes 19, 20 to a differential amplifier, electrode 20 providing compensation for variations in the moisture content of the paper. Detected discontinuities may be automatically marked or the paper may be automatically stopped. For testing carton blanks, the output of the electrodes is gated so as to be measured only when a blank is passing over the electrodes.
GB1348982D 1971-05-20 1971-05-20 Method of detecting changes in moving material Expired GB1348982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2341770 1971-05-20

Publications (1)

Publication Number Publication Date
GB1348982A true GB1348982A (en) 1974-03-27

Family

ID=10195275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348982D Expired GB1348982A (en) 1971-05-20 1971-05-20 Method of detecting changes in moving material

Country Status (1)

Country Link
GB (1) GB1348982A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493532A1 (en) * 1980-11-05 1982-05-07 Imp Group Ltd METHOD FOR CONTROLLING A DEPOSIT ON A CIRCULATING STRIP
WO1982001592A1 (en) * 1980-10-24 1982-05-13 Vladimir K Fedotov Device for determining surface defects of filament articles
GB2294547A (en) * 1994-10-25 1996-05-01 Nireco Corp Apparatus for checking glue application state
WO1999031459A1 (en) * 1997-12-16 1999-06-24 Ludwig Fleischhackl Method and device for contactless controlling the application of a fluid
EP1079203A1 (en) * 1999-08-07 2001-02-28 ITW Dynatec GmbH Capacitive monitoring of the application of an adhesive on a substrate with complex permittivity
EP1336838A2 (en) * 2002-02-16 2003-08-20 Romani, Foud, Dr. Method and apparatus for testing the adhesive strength of plastic layers on the surface of objects

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001592A1 (en) * 1980-10-24 1982-05-13 Vladimir K Fedotov Device for determining surface defects of filament articles
FR2493532A1 (en) * 1980-11-05 1982-05-07 Imp Group Ltd METHOD FOR CONTROLLING A DEPOSIT ON A CIRCULATING STRIP
DE19539706C2 (en) * 1994-10-25 2001-01-25 Nireco Corp Device for checking an adhesive application condition
GB2294547A (en) * 1994-10-25 1996-05-01 Nireco Corp Apparatus for checking glue application state
DE19539706A1 (en) * 1994-10-25 1996-05-02 Nireco Corp Device for checking an adhesive application condition
US5641357A (en) * 1994-10-25 1997-06-24 Nireco Corporation Apparatus for checking glue application state
GB2294547B (en) * 1994-10-25 1998-12-16 Nireco Corp Apparatus for checking glue application state
WO1999031459A1 (en) * 1997-12-16 1999-06-24 Ludwig Fleischhackl Method and device for contactless controlling the application of a fluid
EP1079203A1 (en) * 1999-08-07 2001-02-28 ITW Dynatec GmbH Capacitive monitoring of the application of an adhesive on a substrate with complex permittivity
US6529016B1 (en) 1999-08-07 2003-03-04 Itw Industrie Gmbh Apparatus monitoring the deposition of a liquid-to-pasty medium on a substrate
US6642723B2 (en) 1999-08-07 2003-11-04 Itw Industrie Gmbh Apparatus monitoring the deposition of a liquid-to-pasty medium on a substrate
EP1336838A2 (en) * 2002-02-16 2003-08-20 Romani, Foud, Dr. Method and apparatus for testing the adhesive strength of plastic layers on the surface of objects
EP1336838A3 (en) * 2002-02-16 2004-07-28 Romani, Foud, Dr. Method and apparatus for testing the adhesive strength of plastic layers on the surface of objects

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees