BE848625A - Method for controlling internal tensions in a plastic film and device for its realization - Google Patents

Method for controlling internal tensions in a plastic film and device for its realization

Info

Publication number
BE848625A
BE848625A BE848625A BE848625A BE848625A BE 848625 A BE848625 A BE 848625A BE 848625 A BE848625 A BE 848625A BE 848625 A BE848625 A BE 848625A BE 848625 A BE848625 A BE 848625A
Authority
BE
Belgium
Prior art keywords
realization
plastic film
controlling internal
internal tensions
tensions
Prior art date
Application number
BE848625A
Other languages
French (fr)
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Publication of BE848625A publication Critical patent/BE848625A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/241—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet by photoelastic stress analysis
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G01N21/23—Bi-refringence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
BE848625A 1975-11-27 1976-11-23 Method for controlling internal tensions in a plastic film and device for its realization BE848625A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7536658A FR2333236A1 (en) 1975-11-27 1975-11-27 PROCESS FOR THE CONTROL OF INTERNAL TENSIONS IN A PLASTIC MATERIAL FILM AND DEVICE FOR ITS REALIZATION

Publications (1)

Publication Number Publication Date
BE848625A true BE848625A (en) 1977-05-23

Family

ID=9163120

Family Applications (1)

Application Number Title Priority Date Filing Date
BE848625A BE848625A (en) 1975-11-27 1976-11-23 Method for controlling internal tensions in a plastic film and device for its realization

Country Status (4)

Country Link
BE (1) BE848625A (en)
DE (1) DE2653839A1 (en)
FR (1) FR2333236A1 (en)
GB (1) GB1530710A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563337B1 (en) * 1984-04-19 1986-06-27 Saint Gobain Rech MEASUREMENT OF CONSTRAINTS IN FLEET GLASS
US5979244A (en) * 1998-03-04 1999-11-09 Siemens Aktiengesellschaft Method and apparatus for evaluating internal film stress at high lateral resolution
DE102010011864B4 (en) * 2010-03-18 2022-12-22 Brückner Maschinenbau GmbH & Co. KG Process for online determination of mechanical and/or optical properties of a plastic film

Also Published As

Publication number Publication date
DE2653839A1 (en) 1977-06-08
FR2333236A1 (en) 1977-06-24
FR2333236B1 (en) 1978-04-14
GB1530710A (en) 1978-11-01

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