CN104296905A - Device for determining internal stress of glass through polariscope - Google Patents
Device for determining internal stress of glass through polariscope Download PDFInfo
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- CN104296905A CN104296905A CN201410609377.7A CN201410609377A CN104296905A CN 104296905 A CN104296905 A CN 104296905A CN 201410609377 A CN201410609377 A CN 201410609377A CN 104296905 A CN104296905 A CN 104296905A
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- glass
- internal stress
- support
- polariscope
- light source
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Abstract
The invention discloses a device for determining internal stress of glass through a polariscope. The device is composed of a light source, a starting polarizing film, an object stage, a one fourth wavelength piece and a detecting polarizing film. The starting polarizing film is arranged on a first support on one side of the object stage. The light source is installed on the portion, located on one side of the starting polarizing film, of the first support. A sample is arranged on the object stage. The one fourth wavelength piece and the detecting polarizing film are arranged on a second support on the other side of the object stage. The device can determine the internal stress of the glass fast and effectively by utilizing a compensator determining method. The device is simple in structure, convenient to install and use, high in measurement precision, and high in applicability.
Description
Technical field
The present invention relates to glass strain fields of measurement, particularly a kind of polariscope measures glass internal stress device.
Background technology
Due to the singularity of production technology, in the glassware after completing, also there is internal stress more or less.In glass forming process, due to external mechanical force effect or cooling time heat uneven produced stress be called thermal stress or macro-stress.The stress caused in the micro-uneven district that inside glass is formed due to uneven components is called structural stress or microstress.Stress existing in the volume range being equivalent to unit cell dimension in glass is called ultramicroscopic view stress.Due to the architectural characteristic of glass, microcosmic wherein and ultramicroscopic view stress minimum, little on the impact of the physical strength of glass.What have the greatest impact is thermal stress in glass, because this stress is normally extremely uneven, can reduces physical strength and the thermal stability of glassware, affect the safe handling of goods, even autoclasis phenomenon can occur time serious.Therefore, in order to ensure safety when using, various glassware is all specified that the internal stress of its remnants can not exceed a certain setting.For optical glass, the existence of larger stress will have a strong impact on light transmission and image quality.Therefore, measuring the internal stress of glass is that the product of the valuable or precision that a kind of means, particularly quality requirements of Mass Control are higher is even more important.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides and a kind ofly the polariscope of Quick Measurement glass internal stress can measure glass internal stress device.
The present invention in order to the technical scheme solving its technical matters and adopt is: a kind of polariscope measures glass internal stress device, be made up of light source, polarizing plate, objective table, 1/4 wavelength sheet and analyser plate, described polarizing plate is positioned on the first support of objective table side, and the side the first support being positioned at polarizing plate is provided with light source, described sample is placed on objective table, and described 1/4 wavelength sheet and analyser plate are placed on the second support of objective table opposite side respectively.
As a further improvement on the present invention, described light source is also connected and installed with a ballast resistor.
As a further improvement on the present invention, described second support is provided with 1/4 wavelength scale and analyser plate scale, and described 1/4 wavelength sheet and analyser plate are arranged in 1/4 wavelength scale and analyser plate scale respectively.
The invention has the beneficial effects as follows: device of the present invention can utilize compensator determination method fast and effeciently to measure the internal stress of glass, and apparatus structure of the present invention is simple, easy to install, measuring accuracy is high, and applicability is wide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Indicate in figure: 1-light source; 2-polarizing plate; 3-objective table; 4-1/4 wavelength sheet; 5-analyser plate; 6-first support; 7-sample; 8-second support; 9-ballast resistor; 10-1/4 wavelength scale; 11-analyser plate scale.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Fig. 1 shows a kind of embodiment that a kind of polariscope of the present invention measures glass internal stress device, be made up of light source 1, polarizing plate 2, objective table 3,1/4 wavelength sheet 4 and analyser plate 5, described polarizing plate 2 is positioned on the first support 6 of objective table 3 side, and the side the first support 6 being positioned at polarizing plate 2 is provided with light source 1, described sample 7 is placed on objective table 3, and described 1/4 wavelength sheet 4 and analyser plate 5 are placed on the second support 8 of objective table 3 opposite side respectively; Described light source 1 is also connected and installed with a ballast resistor 9; Described second support 8 is provided with 1/4 wavelength scale 10 and analyser plate scale 11, and described 1/4 wavelength sheet 4 and analyser plate 5 are arranged in 1/4 wavelength scale 10 and analyser plate scale 11 respectively.
The light sent by light source 1 after polarizer, complanation polarized light (supposing that its direction of vibration is vertical direction), when rotating analyzer and being orthogonal with it, polarized light not by, be black with visual field during eye observation.If put people in the optical path when having a glass specimen of stress, this polarized light is by being broken down into the horizontal polarization light and orthogonal polarized light with path difference after glass.When two bundle polarized lights are by after quarter wave plate, be synthesized as linearly polarized light, but the direction of vibration of plane of polarization to the linearly polarized light that polarizer produces of linearly polarized light now has the rotation of a bicker.Therefore, in visual field, the bright district that two blackstreaks separate can just be seen.Rotate analyzer, again make center of glass blackening, the differential seat angle according to analyzer ", just can calculate the optical path difference of glass.
Claims (3)
1. a polariscope measures glass internal stress device, it is characterized in that: by light source (1), polarizing plate (2), objective table (3), 1/4 wavelength sheet (4) and analyser plate (5) composition, described polarizing plate (2) is positioned on first support (6) of objective table (3) side, and the side the first support (6) being positioned at polarizing plate (2) is provided with light source (1), described sample (7) is placed on objective table (3), described 1/4 wavelength sheet (4) and analyser plate (5) are placed on second support (8) of objective table (3) opposite side respectively.
2. polariscope according to claim 1 measures glass internal stress device, it is characterized in that: described light source (1) is also connected and installed with a ballast resistor (9).
3. polariscope according to claim 1 measures glass internal stress device, it is characterized in that: described second support (8) is provided with 1/4 wavelength scale (10) and analyser plate scale (11), described 1/4 wavelength sheet (4) and analyser plate (5) are arranged in 1/4 wavelength scale (10) and analyser plate scale (11) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609377.7A CN104296905A (en) | 2014-11-04 | 2014-11-04 | Device for determining internal stress of glass through polariscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609377.7A CN104296905A (en) | 2014-11-04 | 2014-11-04 | Device for determining internal stress of glass through polariscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104296905A true CN104296905A (en) | 2015-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410609377.7A Pending CN104296905A (en) | 2014-11-04 | 2014-11-04 | Device for determining internal stress of glass through polariscope |
Country Status (1)
| Country | Link |
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| CN (1) | CN104296905A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424242A (en) * | 2015-12-18 | 2016-03-23 | 苏州精创光学仪器有限公司 | Automatic measuring instrument of glass internal stress |
| CN107861544A (en) * | 2017-10-10 | 2018-03-30 | 浙江大学 | The method for controlling the method for material internal stress distribution and information to read |
| CN110530800A (en) * | 2018-05-25 | 2019-12-03 | 深圳市杰普特光电股份有限公司 | The detection method and device of glass strain defect |
Citations (2)
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| CN102829903A (en) * | 2012-08-30 | 2012-12-19 | 哈尔滨工业大学 | MEMS (Micro Electro Mechanical System) scanning type laser heterodyne interferometer and method thereof in measuring glass stress |
| US20130250277A1 (en) * | 2012-03-16 | 2013-09-26 | National Tsing Hua University | Apparatus for quantifying unknown stress and residual stress of a material and method thereof |
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2014
- 2014-11-04 CN CN201410609377.7A patent/CN104296905A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130250277A1 (en) * | 2012-03-16 | 2013-09-26 | National Tsing Hua University | Apparatus for quantifying unknown stress and residual stress of a material and method thereof |
| CN102829903A (en) * | 2012-08-30 | 2012-12-19 | 哈尔滨工业大学 | MEMS (Micro Electro Mechanical System) scanning type laser heterodyne interferometer and method thereof in measuring glass stress |
Non-Patent Citations (3)
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|---|
| 何勇等: "光学玻璃应力的自动测试", 《玻璃与搪瓷》 * |
| 周天辉等: "玻璃应力的测定方法", 《玻璃与搪瓷》 * |
| 谢俊: "谈微晶玻璃残余应力的测量方法", 《玻璃》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424242A (en) * | 2015-12-18 | 2016-03-23 | 苏州精创光学仪器有限公司 | Automatic measuring instrument of glass internal stress |
| CN107861544A (en) * | 2017-10-10 | 2018-03-30 | 浙江大学 | The method for controlling the method for material internal stress distribution and information to read |
| CN110530800A (en) * | 2018-05-25 | 2019-12-03 | 深圳市杰普特光电股份有限公司 | The detection method and device of glass strain defect |
| CN110530800B (en) * | 2018-05-25 | 2022-03-29 | 深圳市杰普特光电股份有限公司 | Method and device for detecting glass stress defect |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20150121 |