IT1149352B - Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente - Google Patents

Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente

Info

Publication number
IT1149352B
IT1149352B IT49143/82A IT4914382A IT1149352B IT 1149352 B IT1149352 B IT 1149352B IT 49143/82 A IT49143/82 A IT 49143/82A IT 4914382 A IT4914382 A IT 4914382A IT 1149352 B IT1149352 B IT 1149352B
Authority
IT
Italy
Prior art keywords
tempered glass
glass sheets
tensional state
thermally tempered
destructive control
Prior art date
Application number
IT49143/82A
Other languages
English (en)
Other versions
IT8249143A0 (it
Inventor
Amedeo Colombotto
Scala Ernesto Della
Luciano Biasutti
Original Assignee
Siv Soc Italiana Vetro
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 Siv Soc Italiana Vetro filed Critical Siv Soc Italiana Vetro
Priority to IT49143/82A priority Critical patent/IT1149352B/it
Publication of IT8249143A0 publication Critical patent/IT8249143A0/it
Priority to EP83830178A priority patent/EP0104151B1/en
Priority to US06/534,627 priority patent/US4584476A/en
Priority to DE8383830178T priority patent/DE3368125D1/de
Priority to ES525755A priority patent/ES525755A0/es
Application granted granted Critical
Publication of IT1149352B publication Critical patent/IT1149352B/it

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

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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
IT49143/82A 1982-09-21 1982-09-21 Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente IT1149352B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT49143/82A IT1149352B (it) 1982-09-21 1982-09-21 Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente
EP83830178A EP0104151B1 (en) 1982-09-21 1983-09-19 A device for the non-destructive testing of the internal stress state of heat tempered plate glass
US06/534,627 US4584476A (en) 1982-09-21 1983-09-19 Device for the non-destructive testing of the internal stress state of heat tempered plate glass
DE8383830178T DE3368125D1 (en) 1982-09-21 1983-09-19 A device for the non-destructive testing of the internal stress state of heat tempered plate glass
ES525755A ES525755A0 (es) 1982-09-21 1983-09-20 Dispositivo para el control no destructivo del estado de tensiones de una lamina de vidrio atemperada termicamente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT49143/82A IT1149352B (it) 1982-09-21 1982-09-21 Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente

Publications (2)

Publication Number Publication Date
IT8249143A0 IT8249143A0 (it) 1982-09-21
IT1149352B true IT1149352B (it) 1986-12-03

Family

ID=11269768

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49143/82A IT1149352B (it) 1982-09-21 1982-09-21 Dispositivo per il controllo non distruttivo dello stato tensionale di lastre di vetro temperate termicamente

Country Status (5)

Country Link
US (1) US4584476A (it)
EP (1) EP0104151B1 (it)
DE (1) DE3368125D1 (it)
ES (1) ES525755A0 (it)
IT (1) IT1149352B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543632A1 (de) * 1985-12-11 1987-06-19 Hoechst Ag Verfahren und vorrichtung zur bestimmung von dicken- und/oder orientierungsaenderungen innerhalb einer optisch aktiven materialbahn
WO1994008229A1 (en) * 1992-09-29 1994-04-14 The University Of Queensland Detection of defects in glass
DE19720330C1 (de) * 1997-05-15 1998-11-12 Sekurit Saint Gobain Deutsch Verfahren und Vorrichtung zur Messung von Spannungen in Glasscheiben mit Hilfe des Streulichtverfahrens
US5929993A (en) * 1998-03-03 1999-07-27 J.A. Woollam Co. Inc. Total film retardance monitoring system, and method of use
US7705995B1 (en) 2004-12-20 2010-04-27 J.A. Woollam Co., Inc. Method of determining substrate etch depth

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1681991A (en) * 1926-11-20 1928-08-28 Corning Glass Works Method of detecting and measuring strains
GB830313A (en) * 1958-02-18 1960-03-16 Zeiss Jena Veb Carl Improvements in instruments for visualizing mechanical strain in opaque workpieces capable of transmitting infra-red light
FR1308015A (fr) * 1961-09-20 1962-11-03 Saint Gobain Procédé et dispositifs pour l'examen des contraintes dans des pièces en matière transparente, en verre par exemple
US3589812A (en) * 1968-08-29 1971-06-29 France Armed Forces Processes and devices for measuring stresses within a transparent body for electromagnetic waves
US3818339A (en) * 1972-08-14 1974-06-18 Burroughs Corp Amplitude comparison circuit
JPS55104743A (en) * 1979-02-06 1980-08-11 Fujitsu Ltd Method for inspecting substrate

Also Published As

Publication number Publication date
US4584476A (en) 1986-04-22
ES8500444A1 (es) 1984-10-01
EP0104151A2 (en) 1984-03-28
ES525755A0 (es) 1984-10-01
IT8249143A0 (it) 1982-09-21
EP0104151A3 (en) 1984-10-03
DE3368125D1 (en) 1987-01-15
EP0104151B1 (en) 1986-12-03

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