CN204043824U - Inside glass stress apparatus for quantitatively - Google Patents
Inside glass stress apparatus for quantitatively Download PDFInfo
- Publication number
- CN204043824U CN204043824U CN201420135705.XU CN201420135705U CN204043824U CN 204043824 U CN204043824 U CN 204043824U CN 201420135705 U CN201420135705 U CN 201420135705U CN 204043824 U CN204043824 U CN 204043824U
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- light
- double
- frequency laser
- phasometer
- laser head
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- 239000011521 glass Substances 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 238000011002 quantification Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 230000035559 beat frequency Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provide a kind of can the device of accurate quantification tested glass internal stress.Inside glass stress apparatus for quantitatively, comprises double-frequency laser head successively by light path, polarisation optical splitter, polaroid, analyzer, phase place takes into account computing machine.Polarisation optical splitter carries out light splitting to the light beam that double-frequency laser head exports, and a road polarized light is as reference signal, and an other road polarized light is as test light.The utility model adopts light heterodyne method principle, utilizes double-frequency laser interference, simple and compact for structure, highly sensitive, can realize detecting the accurate quantification of the unified internal stress of glass specimen, gets rid of human factor impact, good environmental adaptability.
Description
Technical field
The utility model relates to a kind of proving installation of glass, particularly relates to a kind of inside glass stress apparatus for quantitatively.
Background technology
The internal stress of optical glass is a large hidden danger concerning optical instrument, if glass strain is comparatively large, will burst apart as long as knock gently, or chance thermal shock also can burst.Require high optical element for optical surface profile, even if stress is little, after the slow releasing through several months or several years internal stress, optical surface profile also can obviously degenerate, the serious performance reducing optical instrument.
The conventional reading polarisation stress ga(u)ge with wave plate carries out stress mornitoring to optical glass at present, directly measures optical path difference by interfering dark fringe.Adopt reading polarisation stress ga(u)ge to detect, judge reading, belong to half-quantitative detection by eye-observation striped situation, artifical influence factor is comparatively large, and can only provide the reading of single locus, and can not lead to light face to whole sample provides precise information.In addition, the reading of below one-level striped can only be provided, cannot interpretation for more senior time striped, thus glass quality can not be controlled preferably, and detection sensitivity also affects by the fringe-width factor such as cannot accurately to locate.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of can the proving installation of accurate quantification tested glass internal stress.
The technical scheme that the utility model technical solution problem adopts is: inside glass stress apparatus for quantitatively, double-frequency laser head, polarisation optical splitter, polaroid, analyzer, phasometer is comprised successively by light path, wherein, described double-frequency laser head produces double-frequency laser; Described polarisation optical splitter carries out light splitting to the light beam that double-frequency laser head exports, and a road polarized light, as reference signal, directly sends into phasometer, and an other road polarized light is as test light; Described polaroid expands test light, is irradiated on sample; Described analyzer detects the polarisation signal through sample, and entering phasometer becomes test signal, test signal and above-mentioned reference signal generation double-frequency interference; Described phasometer carries out integer counting to double-frequency interference signal, measures phase place, obtains the phase signal of interference fringe.
The beneficial effects of the utility model are: adopt light heterodyne method principle, utilize double-frequency laser interference, simple and compact for structure, highly sensitive, can realize detecting the accurate quantification of the unified internal stress of glass specimen, get rid of human factor impact, good environmental adaptability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Device of the present utility model comprises double-frequency laser head 1, polarisation optical splitter 2, polaroid 3, analyzer 5, phasometer 6 successively by light path, as shown in Figure 1.Double-frequency laser head 1 is high-precision frequency stabilized laser, utilize transverse zeeman frequency splitting effect, He-Ne laser instrument is placed in transverse magnetic field, its spectral line divides under the influence of a magnetic field, export the orhtogonal linear polarizaiton light a pair with certain frequency difference, produce double-frequency laser, the repdocutbility of wavelength and the orthogonality of polarization state good, output power is large, and beat frequency rate is stablized.The light beam that polarisation optical splitter 2 pairs of double-frequency laser heads 1 export carries out light splitting, and a road polarized light is as reference signal, and directly send into phasometer 6, an other road polarized light is as test light.Test light is expanded by polaroid 3, be irradiated on sample 4, through the light beam after sample 4, its phase place changes by the effect of sample 4 internal stress, detect the polarisation signal through sample 4 through analyzer 5 again, then entering phasometer 6 becomes test signal.Enter the test signal of phasometer 6 and above-mentioned reference signal generation double-frequency interference, phasometer 6 pairs of double-frequency interference signals carry out integer counting, and measure phase place, phasometer 6 obtains the phase signal of interference fringe.
Above-mentioned phase signal is transferred to computing machine 7, computing machine 7 by software simulating to the Real-time Collection of sample 4 internal stress and analysis, thus realize corresponding force value accurate quantification detect.
During test, open double-frequency laser head 1, sample 4 is placed in the optical path, test beams after polarisation optical splitter 2 light splitting and polaroid 3 expand incides sample 4, by the light of sample 4 through the laggard applying aspect meter 6 of analyzer 5, with reference signal generation double-frequency interference, the phase signal of interference fringe transfers to computing machine 7, can obtain sample 4 internal stress value by gathering and analyzing.
Claims (1)
1. inside glass stress apparatus for quantitatively, it is characterized in that: comprise double-frequency laser head (1), polarisation optical splitter (2), polaroid (3), analyzer (5), phasometer (6) successively by light path, wherein, described double-frequency laser head (1) produces double-frequency laser; Described polarisation optical splitter (2) carries out light splitting to the light beam that double-frequency laser head (1) exports, and a road polarized light, as reference signal, directly sends into phasometer (6), and an other road polarized light is as test light; Described polaroid (3) expands test light, is irradiated on sample (4); Described analyzer (5) detects the polarisation signal through sample (4), and entering phasometer (6) becomes test signal, test signal and above-mentioned reference signal generation double-frequency interference; Described phasometer (6) carries out integer counting to double-frequency interference signal, measures phase place, obtains the phase signal of interference fringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135705.XU CN204043824U (en) | 2014-03-25 | 2014-03-25 | Inside glass stress apparatus for quantitatively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135705.XU CN204043824U (en) | 2014-03-25 | 2014-03-25 | Inside glass stress apparatus for quantitatively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043824U true CN204043824U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420135705.XU Expired - Lifetime CN204043824U (en) | 2014-03-25 | 2014-03-25 | Inside glass stress apparatus for quantitatively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043824U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509939A (en) * | 2015-12-01 | 2016-04-20 | 长春理工大学 | Device and method for detecting stress of laser in damaging non-transparent material in real time |
| CN105716756A (en) * | 2016-01-26 | 2016-06-29 | 河北工业大学 | Accurate measuring device for microstress spatial distribution of optical material |
| CN105973843A (en) * | 2016-05-05 | 2016-09-28 | 四川南玻节能玻璃有限公司 | Tempered/semi-tempered glass stress mark intensity quantitative test method |
| CN109916743A (en) * | 2019-03-21 | 2019-06-21 | 京东方科技集团股份有限公司 | Dynamic mechanical measuring device, measurement method and calculating equipment |
| CN113820051A (en) * | 2021-08-19 | 2021-12-21 | 南京大学 | Complementary Interferometric Stress Measurement Device for Materials |
-
2014
- 2014-03-25 CN CN201420135705.XU patent/CN204043824U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509939A (en) * | 2015-12-01 | 2016-04-20 | 长春理工大学 | Device and method for detecting stress of laser in damaging non-transparent material in real time |
| CN105509939B (en) * | 2015-12-01 | 2018-07-27 | 长春理工大学 | A kind of apparatus and method of the stress of real-time detection damage from laser non-transparent material |
| CN105716756A (en) * | 2016-01-26 | 2016-06-29 | 河北工业大学 | Accurate measuring device for microstress spatial distribution of optical material |
| CN105716756B (en) * | 2016-01-26 | 2019-07-09 | 河北工业大学 | A kind of device for accurately measuring of optical material microstress spatial distribution |
| CN105973843A (en) * | 2016-05-05 | 2016-09-28 | 四川南玻节能玻璃有限公司 | Tempered/semi-tempered glass stress mark intensity quantitative test method |
| CN105973843B (en) * | 2016-05-05 | 2018-08-17 | 四川南玻节能玻璃有限公司 | A kind of tempering/semi-tempered glass stress pattern strength quantifies method of inspection |
| CN109916743A (en) * | 2019-03-21 | 2019-06-21 | 京东方科技集团股份有限公司 | Dynamic mechanical measuring device, measurement method and calculating equipment |
| CN113820051A (en) * | 2021-08-19 | 2021-12-21 | 南京大学 | Complementary Interferometric Stress Measurement Device for Materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |
|
| CX01 | Expiry of patent term |