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JPS5682423A - Surface stress measuring device of vitreous coating - Google Patents

Surface stress measuring device of vitreous coating

Info

Publication number
JPS5682423A
JPS5682423A JP15913379A JP15913379A JPS5682423A JP S5682423 A JPS5682423 A JP S5682423A JP 15913379 A JP15913379 A JP 15913379A JP 15913379 A JP15913379 A JP 15913379A JP S5682423 A JPS5682423 A JP S5682423A
Authority
JP
Japan
Prior art keywords
coating layer
surface stress
refractive index
light beam
emitting prism
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.)
Granted
Application number
JP15913379A
Other languages
Japanese (ja)
Other versions
JPS6052368B2 (en
Inventor
Kan Kishii
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15913379A priority Critical patent/JPS6052368B2/en
Priority to EP80103771A priority patent/EP0023577B1/en
Priority to US06/164,496 priority patent/US4353649A/en
Priority to DE8080103771T priority patent/DE3071243D1/en
Publication of JPS5682423A publication Critical patent/JPS5682423A/en
Publication of JPS6052368B2 publication Critical patent/JPS6052368B2/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
    • 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
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements

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)

Abstract

PURPOSE:To measure the surface stress of a glass coating layer, by providing a coherent light source, a light projection mechanism for projecting a coherent light beam to the vitreous coating layer, and an emitting prism whose refractive index is larger than said coating layer. CONSTITUTION:An incident light beam 1 is projected to the vitreous coating layer 2 by the light projection mechanism, and an emitting prism 4 is stuck and installed on the coating surface 3. The incident light beam 1 is taken out by the emitting prism 4, and it is converged to one point on the focal plane of the objective lens 5. In this case, when the surface stress exists on the coating layer, the position of the boundary 8 of light and darkness is also different, and therefore, the surface stress can be derived by calculating the difference of refractive index from these positions. As for actual porcelain enamel and glaze, however, the surface is not always plane, and therefore, the accuracy cannot be obtained enough, but as a result of using a coherent light source, a thin interference fringe is formed on the focal plane, and the difference of refractive index is derived with sufficient accuracy by making the fringe a target.
JP15913379A 1979-07-06 1979-12-10 Glassy coating surface stress measuring device Expired JPS6052368B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15913379A JPS6052368B2 (en) 1979-12-10 1979-12-10 Glassy coating surface stress measuring device
EP80103771A EP0023577B1 (en) 1979-07-06 1980-07-02 Surface stress measurement
US06/164,496 US4353649A (en) 1979-07-06 1980-07-02 Apparatus for surface stress measurement of glass coating and transparent plastic product
DE8080103771T DE3071243D1 (en) 1979-07-06 1980-07-02 Surface stress measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15913379A JPS6052368B2 (en) 1979-12-10 1979-12-10 Glassy coating surface stress measuring device

Publications (2)

Publication Number Publication Date
JPS5682423A true JPS5682423A (en) 1981-07-06
JPS6052368B2 JPS6052368B2 (en) 1985-11-19

Family

ID=15686962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15913379A Expired JPS6052368B2 (en) 1979-07-06 1979-12-10 Glassy coating surface stress measuring device

Country Status (1)

Country Link
JP (1) JPS6052368B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855830A (en) * 1981-09-30 1983-04-02 Toshiba Corp Measuring apparatus of surface stress
WO2012128184A1 (en) * 2011-03-18 2012-09-27 旭硝子株式会社 Device for measuring surface stress of glass and method for measuring surface stress of glass
JP2016024002A (en) * 2014-07-18 2016-02-08 日本電気硝子株式会社 Stress measurement method of transparent article

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855830A (en) * 1981-09-30 1983-04-02 Toshiba Corp Measuring apparatus of surface stress
JPS6244603B2 (en) * 1981-09-30 1987-09-21 Toshiba Glass Kk
WO2012128184A1 (en) * 2011-03-18 2012-09-27 旭硝子株式会社 Device for measuring surface stress of glass and method for measuring surface stress of glass
JP5892156B2 (en) * 2011-03-18 2016-03-23 旭硝子株式会社 Glass surface stress measuring apparatus and glass surface stress measuring method
JP2016024002A (en) * 2014-07-18 2016-02-08 日本電気硝子株式会社 Stress measurement method of transparent article

Also Published As

Publication number Publication date
JPS6052368B2 (en) 1985-11-19

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