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BE879123A - METHOD, APPARATUS AND DEVICE FOR MEASURING VARIATIONS IN THE THICKNESS OF A PLASTIC SHEET - Google Patents

METHOD, APPARATUS AND DEVICE FOR MEASURING VARIATIONS IN THE THICKNESS OF A PLASTIC SHEET

Info

Publication number
BE879123A
BE879123A BE0/197419A BE197419A BE879123A BE 879123 A BE879123 A BE 879123A BE 0/197419 A BE0/197419 A BE 0/197419A BE 197419 A BE197419 A BE 197419A BE 879123 A BE879123 A BE 879123A
Authority
BE
Belgium
Prior art keywords
thickness
plastic sheet
measuring variations
variations
measuring
Prior art date
Application number
BE0/197419A
Other languages
French (fr)
Inventor
Duwayne M Thon
Original Assignee
Winzen Internat Inc
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 Winzen Internat Inc filed Critical Winzen Internat Inc
Publication of BE879123A publication Critical patent/BE879123A/en

Links

Classifications

    • 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
    • G01B7/087—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 of objects while moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/002—Automatic recalibration
    • G01D18/006—Intermittent recalibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92238—Electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92447—Moulded article

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
BE0/197419A 1978-10-03 1979-10-01 METHOD, APPARATUS AND DEVICE FOR MEASURING VARIATIONS IN THE THICKNESS OF A PLASTIC SHEET BE879123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94675178A 1978-10-03 1978-10-03

Publications (1)

Publication Number Publication Date
BE879123A true BE879123A (en) 1980-02-01

Family

ID=25484941

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/197419A BE879123A (en) 1978-10-03 1979-10-01 METHOD, APPARATUS AND DEVICE FOR MEASURING VARIATIONS IN THE THICKNESS OF A PLASTIC SHEET

Country Status (7)

Country Link
JP (1) JPS5550102A (en)
BE (1) BE879123A (en)
DE (1) DE2939739A1 (en)
FR (1) FR2438252A1 (en)
GB (1) GB2038483B (en)
IT (1) IT1123410B (en)
NL (1) NL7907279A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223198B1 (en) * 1985-11-12 1992-07-29 Somar Corporation Apparatus for peeling a film stuck on a board
GB8709465D0 (en) * 1987-04-22 1987-05-28 Watkiss Automation Ltd Sensor
DE3714615A1 (en) * 1987-05-01 1988-11-17 Bwg Bergwerk Walzwerk DEVICE FOR DETECTING AT LEAST THE CROSS-BENDING OF TAPE TREATMENT PLANTS THROUGH METAL TAPES
US4947131A (en) * 1989-04-21 1990-08-07 Modern Controls, Inc. Capacitance bar sensor
US5030918A (en) * 1989-11-17 1991-07-09 Modern Controls, Inc. Portable gauge for measuring thickness variations of thin plastic film
DE4009982C2 (en) * 1990-03-28 2000-11-02 Windmoeller & Hoelscher Method for measuring the thickness of warm extruded foils made of thermoplastic
DE4323091A1 (en) * 1993-07-10 1995-01-12 Heidelberger Druckmasch Ag Arrangement for monitoring the position of a web edge on a web transporting drum
DE4431934B4 (en) * 1994-09-08 2006-04-27 Heidelberger Druckmaschinen Ag Non-contact double sheet control device
DE19732281C2 (en) * 1997-07-26 1999-09-16 Roehm Gmbh Device for measuring the average web thickness of multi-wall sheets
DE50004988D1 (en) 2000-08-24 2004-02-12 Plast Control Geraetebau Gmbh Capacitive film thickness sensor
DE50013165D1 (en) 2000-11-10 2006-08-24 Plast Control Geraetebau Gmbh Method for measuring the thickness of multilayer films

Also Published As

Publication number Publication date
FR2438252A1 (en) 1980-04-30
JPS5550102A (en) 1980-04-11
IT1123410B (en) 1986-04-30
FR2438252B3 (en) 1981-08-14
IT7926182A0 (en) 1979-10-02
GB2038483A (en) 1980-07-23
NL7907279A (en) 1980-04-09
DE2939739A1 (en) 1980-04-17
GB2038483B (en) 1983-07-20

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MODERN CONTROLS INC.

Effective date: 19921031