MD443Z - Method for measuring residual stresses in sheet glass and device for its realization - Google Patents
Method for measuring residual stresses in sheet glass and device for its realizationInfo
- Publication number
- MD443Z MD443Z MDS20110039A MDS20110039A MD443Z MD 443 Z MD443 Z MD 443Z MD S20110039 A MDS20110039 A MD S20110039A MD S20110039 A MDS20110039 A MD S20110039A MD 443 Z MD443 Z MD 443Z
- Authority
- MD
- Moldova
- Prior art keywords
- glass
- laser radiation
- band
- rayleigh scattering
- sheet glass
- Prior art date
Links
Abstract
The invention relates to methods of nondestructive testing and diagnostics of technical condition of sheet glass objects by the polarization-optical method.The method for measuring residual stresses in sheet glass includes illumination of the end surface of glass with polarized and collimated laser radiation and registration of the Rayleigh scattering of laser radiation. The illumination of the end surface of glass is carried out along it by laser radiation, collimated in the form of a band oriented at an angle of 45° to the glass plane. Registration of Rayleigh scattering is carried out simultaneously throughout the thickness of the glass in the direction of the laser radiation and perpendicular to the band of laser radiation. On the basis of the computer analysis of the recorded image is calculated the residual stress profile throughout the thickness of the glass.The device for measuring residual stresses in sheet glass (5) contains a laser illumination source (1), a polarizer (2), a collimator (3), arranged in series, and a video camera (4) for registration of the Rayleigh scattering of laser radiation, which is connected to a computer for processing of Rayleigh scattering. The collimator (3) is made with the possibility to form a band of laser radiation, providing the width of the band equal to the thickness of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20110039A MD443Z (en) | 2011-02-24 | 2011-02-24 | Method for measuring residual stresses in sheet glass and device for its realization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20110039A MD443Z (en) | 2011-02-24 | 2011-02-24 | Method for measuring residual stresses in sheet glass and device for its realization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD443Y MD443Y (en) | 2011-11-30 |
| MD443Z true MD443Z (en) | 2012-06-30 |
Family
ID=45815322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDS20110039A MD443Z (en) | 2011-02-24 | 2011-02-24 | Method for measuring residual stresses in sheet glass and device for its realization |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD443Z (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1265472A1 (en) * | 1985-07-16 | 1986-10-23 | Предприятие П/Я Г-4937 | Device for measuring contour of cross section of transparent optical members |
| SU1787266A3 (en) * | 1990-12-28 | 1993-01-07 | Иhctиtуt Paдиotexhиkи И Элektpohиkи Ah@ Cccp | Device for measurement of optical variation value |
| RU2240501C2 (en) * | 2002-10-17 | 2004-11-20 | Открытое акционерное общество "Раменское приборостроительное конструкторское бюро" | Method and device for determining remaining voltages in mono-crystalline materials by polarizing-optical method |
| RU2319941C1 (en) * | 2006-05-02 | 2008-03-20 | Федор Андреевич Егоров | Stress measuring detector |
| RU2353925C1 (en) * | 2007-09-27 | 2009-04-27 | Борис Максович Бржозовский | Device for contactless high-precision measurement of object physical and technical parameters |
| RU2373504C2 (en) * | 2007-06-22 | 2009-11-20 | Федеральное государственное унитарное предприятие "Научно-производственное предприятие "Исток" (ФГУП НПП "Исток") | Method of stress measurement in hollow product and thickness of its walls by polarisation optical method and device for its implementation |
| MD172Z (en) * | 2009-11-05 | 2010-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Fiber-optical sensor for the registration of infra-red radiation |
-
2011
- 2011-02-24 MD MDS20110039A patent/MD443Z/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1265472A1 (en) * | 1985-07-16 | 1986-10-23 | Предприятие П/Я Г-4937 | Device for measuring contour of cross section of transparent optical members |
| SU1787266A3 (en) * | 1990-12-28 | 1993-01-07 | Иhctиtуt Paдиotexhиkи И Элektpohиkи Ah@ Cccp | Device for measurement of optical variation value |
| RU2240501C2 (en) * | 2002-10-17 | 2004-11-20 | Открытое акционерное общество "Раменское приборостроительное конструкторское бюро" | Method and device for determining remaining voltages in mono-crystalline materials by polarizing-optical method |
| RU2319941C1 (en) * | 2006-05-02 | 2008-03-20 | Федор Андреевич Егоров | Stress measuring detector |
| RU2373504C2 (en) * | 2007-06-22 | 2009-11-20 | Федеральное государственное унитарное предприятие "Научно-производственное предприятие "Исток" (ФГУП НПП "Исток") | Method of stress measurement in hollow product and thickness of its walls by polarisation optical method and device for its implementation |
| RU2353925C1 (en) * | 2007-09-27 | 2009-04-27 | Борис Максович Бржозовский | Device for contactless high-precision measurement of object physical and technical parameters |
| MD172Z (en) * | 2009-11-05 | 2010-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Fiber-optical sensor for the registration of infra-red radiation |
Non-Patent Citations (1)
| Title |
|---|
| Abaşkin Vladimir. PhD Thesis from Mechanical Department of Universita Polytecnica delle Marche. Development of Innovative Laser Technique for Secure Glass Production and Quality Control Using Laser Techniques, Ancona, Italy, 2006 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD443Y (en) | 2011-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KA4Y | Short-term patent lapsed due to non-payment of fees (with right of restoration) |