GB1530710A - Method and device for monitoring internal tensions in a film - Google Patents

Method and device for monitoring internal tensions in a film

Info

Publication number
GB1530710A
GB1530710A GB4940876A GB4940876A GB1530710A GB 1530710 A GB1530710 A GB 1530710A GB 4940876 A GB4940876 A GB 4940876A GB 4940876 A GB4940876 A GB 4940876A GB 1530710 A GB1530710 A GB 1530710A
Authority
GB
United Kingdom
Prior art keywords
film
polarizer
prism
nov
internal tensions
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
GB4940876A
Other languages
English (en)
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.)
Solvay SA
Original Assignee
Solvay SA
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 SA filed Critical Solvay SA
Publication of GB1530710A publication Critical patent/GB1530710A/en
Expired legal-status Critical Current

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB4940876A 1975-11-27 1976-11-26 Method and device for monitoring internal tensions in a film Expired GB1530710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7536658A FR2333236A1 (fr) 1975-11-27 1975-11-27 Procede pour le controle des tensions internes dans un film de matiere plastique et dispositif pour sa realisation

Publications (1)

Publication Number Publication Date
GB1530710A true GB1530710A (en) 1978-11-01

Family

ID=9163120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4940876A Expired GB1530710A (en) 1975-11-27 1976-11-26 Method and device for monitoring internal tensions in a film

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940669A1 (en) * 1998-03-04 1999-09-08 Siemens Aktiengesellschaft Method and apparatus for evaluating internal film stress at high lateral resolution

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563337B1 (fr) * 1984-04-19 1986-06-27 Saint Gobain Rech Mesure des contraintes dans le verre flotte
DE102010011864B4 (de) * 2010-03-18 2022-12-22 Brückner Maschinenbau GmbH & Co. KG Verfahren zur Online-Ermittlung mechanischer und/oder optischer Eigenschaften einer Kunststofffolie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940669A1 (en) * 1998-03-04 1999-09-08 Siemens Aktiengesellschaft Method and apparatus for evaluating internal film stress at high lateral resolution

Also Published As

Publication number Publication date
BE848625A (fr) 1977-05-23
DE2653839A1 (de) 1977-06-08
FR2333236B1 (enrdf_load_stackoverflow) 1978-04-14
FR2333236A1 (fr) 1977-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee