CN203490010U - Stress meter for measuring surface stress of toughened glass - Google Patents
Stress meter for measuring surface stress of toughened glass Download PDFInfo
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- CN203490010U CN203490010U CN201320603032.1U CN201320603032U CN203490010U CN 203490010 U CN203490010 U CN 203490010U CN 201320603032 U CN201320603032 U CN 201320603032U CN 203490010 U CN203490010 U CN 203490010U
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Abstract
The utility model discloses a stress meter for measuring surface stress of toughened glass. The stress meter comprises a pedestal, a lens assembly, a light source member and a measuring member. The lens assembly comprises a combined prism and a reflective mirror which are used for light reflection. Light beams are generated by a laser of the light source member, are adjusted through a polarization film, and then are incident on the light-in prism. The light beams reflected by the reflective mirror are compensated by a quartz compensator of the measuring member, and are emitted after going through a polarization analyzer, and an angle measuring disc captures and measures the emitted light beams. The toughened glass whose surface stress is not too high can be measured by the stress meter on the base of a GASP method, the measuring precision is relatively high, and the stress meter is applicable to surface stress measurement for half-toughened glass applied in construction.
Description
Technical field
The utility model relates to glass detection device, particularly relate to a kind of detect tempered glass surface stress stress ga(u)ge.
Background technology
At building materials field, glassware needs its surface stress to carry out analysis to measure before dispatching from the factory, and the standard of carrying out is at present GB/T18144-2000 < < glass strain method of testing > >.
At present, the higher tempered glass of principle of work effects on surface stress that the instrument that glass article surface stress analysis is measured adopts has good measurement effect and measuring accuracy, but for the lower tempered glass of surface stress or be applicable to architectural semi-tempered glass and can not carry out very accurate surface stress measurement.
Summary of the invention
For the problems referred to above, the utility model provides a kind of stress ga(u)ge for detection of tempered glass surface stress, because it is to adopt the principle of work of GASP method to measure, for surface stress value, be not that very high tempered glass has higher measuring accuracy, the surface stress that is applicable to the semi-tempered glass of architectural use detects.
For achieving the above object, the utility model is taked following technical scheme: a kind of stress ga(u)ge for detection of tempered glass surface stress, comprises pedestal, lens combination, light source part, measurement component; Light source part and measurement component are slidably installed on pedestal in dovetail groove guide rail, and lens combination is arranged on base interior.
Described lens combination comprises a combined prism and a reflective mirror, described combined prism is fixed on base interior, by entering light prism, bright dipping prism and be folded in into the light dividing plate between light prism, bright dipping prism to form, described reflective mirror is by the reflective mirror spanner adjusting angle of pedestal side.
Described light source part produces light beam by laser instrument, after polarizing plate is adjusted, incides on light prism.
The light that described measurement component is sent by quartzy compensator compensates reflective mirror is launched after analyser plate, and angle measurement scale catches measurement to the light of transmitting.
Further:
It is described that to enter light prism be total reflection prism.
Described laser instrument and polarizing plate are arranged on a laser bench, and laser bench is slidably installed in dovetail groove guide rail, and laser instrument is red laser, and by the laser instrument spanner of laser bench side, are adjusted the incident angle of light.Described laser instrument is powered by laser instrument battery case, has battery case power switch and battery case power light on laser instrument battery case.
Described measurement component has comprised measuring seat, and quartzy compensator is inserted in the below of measuring seat, and analyser plate is on quartzy compensator, and angle measurement scale, on analyser plate, also has object lens on angle measurement scale, and an eyepiece is on object lens.
Angle measurement scale by axle is and coils to be to form; Axle system maintains static, and has 0 benchmark, and central authorities are with sight vane; Dish system can rotate with respect to axle system, and plate is drawn with parallel lines by central authorities of dish system, and edge is with 360 ° of index plates, and dish is the same printing opacities of central authorities; Parallel lines draw plate and index plate is fixed as one, and 0 ° of value of parallel lines and index plate is aimed at.
The utility model is owing to taking above technical scheme, it has the following advantages: this instrument is application GASP method and designing, application reflection and refraction principle, by light source, the combination of prism reflective mirror eyeglass, quartzy compensator being set and playing inclined to one side, analyser plate, path difference on light both direction is distributed and superposeed, in observation visual field, there is the black interference striped of inclination, by the surface stress value of tested glass and the tan at the pitch angle of interference fringe this algorithm that is directly proportional, obtain the surface stress value of glass.This instrument is not that very high tempered glass has higher measuring accuracy for surface stress value, has huge market potential, and the surface stress that is applicable to the semi-tempered glass of architectural use detects.
Accompanying drawing explanation
Fig. 1 is the utility model glass surface stress ga(u)ge external overall structural drawing;
Fig. 2 is the utility model glass surface stress ga(u)ge inner body structural drawing;
Fig. 3 is the sectional view that dovetail groove guide rail is seen in the utility model glass surface stress ga(u)ge side;
Fig. 4-a, 4-b, 4-c is that the utility model glass surface stress ga(u)ge recording geometry visual field and index dial change schematic diagram.
In figure, 1-pedestal, 2-lens combination, 3-light source part, 4-measurement component, 5-dovetail groove guide rail;
21-enters light prism, 22-bright dipping prism, 23-light dividing plate, 24-reflective mirror, 25-reflective mirror spanner;
31-laser instrument, 32-polarizing plate, 33-laser bench, 34-laser instrument spanner, 35-laser instrument battery case, 36-battery case power switch, 37-battery case power light;
41-measuring seat, the quartzy compensator of 42-, 43-analyser plate, 44-angle measurement scale, 45-eyepiece, 46-object lens, 47-axle system, 48-coils system, and 49-parallel lines are drawn plate, 50-index plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
The utility model glass surface stress ga(u)ge, for detection of the surface stress of tempered glass, is to design based on GASP method (critical angle surface polariscope method).The measuring principle of GASP method is: when light is injected glass surface, in the thin layer of near surface, can move a bit of distance with the direction on parallel glass surface, if glass surface does not have stress, light just can produce total reflection during with critical angle incident, be that light can be propagated along glass surface, and may with reflection at critical angle, return again.If glass surface has stress, when light is propagated along glass surface, due to the stress of glass surface, make light in communication process, produce birefringence.In this case, the light reflecting, due to glass surface stress, has formed the path difference linear distribution light field being directly proportional to light distance.Utilize quartzy compensator can be created in the path difference linear distribution light field in another direction,, just there is the black interference striped tilting in the stack that on this both direction, path difference distributes in visual field.Measure the inclination angle of interference fringe, application glass surface stress value and the algorithm that the pitch angle tan of interference fringe in visual field is directly proportional, just can calculate glass surface stress value.
Therefore the glass surface stress ga(u)ge that the utility model provides, as shown in Figure 1, has comprised pedestal 1, lens combination 2, light source part 3 and 4 four parts of measurement component.
As shown in Figure 2, pedestal 1 has a upper mounting plate, is provided with dovetail groove guide rail 5 on platform, and 1 li of portion of dovetail groove guide rail 5 and pedestal keeps light unimpeded.Light source part 3 and described measurement component 4 are arranged in dovetail groove, can move and regulate and fix.Pedestal 1 only has upper mounting plate and sidewall, and inner and bottom is all empty, the inner lens combination 2 of placing, and glass to be measured is placed in bottom, makes glass to be measured can experience the light that lens combination 2 launches, and can be to measurement component reflected light.
In pedestal 1 inside, lens combination 2 has comprised combined prism and reflective mirror 24, and combined prism is fixed in pedestal, by entering light prism 21, bright dipping prism 22 and be folded in into the light dividing plate 23 between light prism 21, bright dipping prism 22 to form.Reflective mirror 24 is arranged on a side of bright dipping prism 22, receives the light that bright dipping prism 22 sends, and reflective mirror 24 is by being arranged on reflective mirror spanner 25 adjusting angles of pedestal side.Light dividing plate 23 is metal partion (metp).Enter light prism 21 and adopt total reflection prism.
The utility model glass surface stress ga(u)ge uses to be all-trans and injects light prism 21, its refractive index is greater than tested glass, when entering tested glass with critical angle, light can produce total reflection, be that light can be propagated along glass surface, and may with reflection at critical angle, return again, when light is propagated along glass surface, due to the stress of glass surface, make light in communication process, produce birefringence.
In glass surface stress ga(u)ge, light source part 3 is to produce light beam by laser instrument 31 and the polarizing plate 32 that can send the good ruddiness of monochromaticity.Laser bench 33 is slidably installed in dovetail groove guide rail 5, laser instrument 31 and polarizing plate 32 are all arranged in laser bench 33, laser instrument 31 is also adjusted the incident angle of light by the laser instrument spanner 34 that is arranged on laser bench side, make described light reach the requirement of total reflection angle; The below that polarizing plate 32 is arranged on laser instrument 31 is fixed on the bottom of laser bench 33.Laser instrument 31 is by 35 power supplies of laser instrument battery case, and in laser instrument battery case 35, can load No. 5 battery total voltages of two joints is that 3V is laser instrument power supply, has battery case power switch 36 and battery case power light 37 on laser instrument battery case 35.The wire light that laser instrument 31 penetrates, through the strict adjustment (generation polarized light) of polarizing plate 32, enters into light prism 21.
In glass surface stress ga(u)ge, measurement component 4 is arranged on the top of reflective mirror 24, has comprised measuring seat 41, quartzy compensator 42, analyser plate 43, angle measurement scale 44 and eyepiece 45, object lens 46.Measuring seat 41 is slidably installed in dovetail groove guide rail 5, and miscellaneous part is arranged on measuring seat 41.
Above the central authorities of angle measurement scale 44, be recording geometry, recording geometry comprises eyepiece 45 and object lens 46.Eyepiece 45 is upper, object lens 46 under.
The instrument using method providing is:
1) with clean gauze, alcohol, the logical light face of wiping prism and tested glass surface, then on prism bottom surface, drip several refractive index oil.
2) determine the wicking face of tested glass, instrument is placed on to this surface gently.
3) open the switch on battery case, the little amber light above box is bright, and the laser instrument in light source for instrument parts is launched red laser.
4) light source part and measurement component are placed on to tram on guide rail (having sign on guide rail), make to face toward light source part bottom into light prism, reflective mirror is facing to measurement component bottom.
5) light enters by entering light prism, after refraction, by bright dipping prism, penetrated, through reflective mirror, reflex to measurement component again, observation eyepiece, slowly rotate ejaculation angle that the spanner of light source part adjusts laser beam when reaching total reflection angle, in eyepiece, will see the blackstreak in red background, shown in Fig. 4-a.
6) slowly rotate the adjusting spanner of reflective mirror, make the interference fringe in eyepiece central in visual field, regulate eyepiece upper-lower position to make seen image reach the most clear, shown in Fig. 4-b.
7) rotate angle measurement scale, make parallel lines draw the pitch angle of plate interference fringe in full accord, at this moment just can measure by scale the tilt angle theta (as shown in Fig. 4-c) of interference fringe.
If glass does not have surface stress, black interference striped is completely vertical with field of view edge boundary line, and when glass surface has stress, interference fringe will run-off the straight, and stress is larger, and tilt angle theta is larger.Stress calculation formula is:
F=K×tgθ
Wherein, F represents tested glass surface stress value (Mpa), and θ represents the pitch angle of interference fringe, and K is instrument constant, and according to the optical parametric of lens combination 2, light source part 3, measurement component 4, looking into handbook can obtain.
The basic parameter of one group of glass surface stress ga(u)ge that the utility model provides is:
1, measurement range: 0-150Mpa;
2, circular graduation: 1 °, meter full scale: 360 °;
3, precision: ± 5Mpa;
4, LASER Light Source: wavelength 635nm, power 10mv;
5、K=39.70。
The utility model glass surface stress ga(u)ge adopts total reflection prism, prism is divided into into light prism and bright dipping prism, light is divided into entering part and penetrates part, these two parts separate with metal partion (metp), in this case, the light reflecting is because the surface stress of tested glass has formed the path difference linear distribution light field being directly proportional to light distance.
The utility model glass surface stress ga(u)ge is owing to having used quartzy compensator, and quartzy compensator is a kind of wedge-shaped optical element with natural quartz one-tenth made of stones, with it, can be created in the path difference linear distribution light field in another direction.Stack due to path difference distribution on above-mentioned this both direction, in the visual field of recording geometry, just there is the black interference striped tilting, in the surface stress value of tested glass and visual field, the tan at the pitch angle of interference fringe is proportional, therefore, by just can calculate the surface stress value of glass to the measurement at interference fringe pitch angle.
Claims (6)
1. for detection of a stress ga(u)ge for tempered glass surface stress, comprise pedestal (1), lens combination (2), light source part (3), measurement component (4); Light source part (3) and measurement component (4) are slidably installed in the upper dovetail groove guide rail (5) of pedestal (1), and lens combination (2) is arranged on pedestal (1) inside, it is characterized in that,
Described lens combination (2) comprises a combined prism and a reflective mirror (24), described combined prism is fixed on pedestal (1) inside, by entering light prism (21), bright dipping prism (22) and be folded in into the light dividing plate (23) between light prism (21), bright dipping prism (22) to form, described reflective mirror (24) is by being arranged on reflective mirror spanner (25) adjusting angle of pedestal (1) side;
Described light source part (3) produces light beam by laser instrument (31), after polarizing plate (32) is adjusted, incides on light prism (21);
The light that described measurement component (4) is sent by quartzy compensator (42) compensating mirror (24) is launched after analyser plate (43), and angle measurement scale (44) catches measurement to the light of transmitting.
2. the stress ga(u)ge for detection of tempered glass surface stress according to claim 1, is characterized in that, described in to enter light prism (21) be total reflection prism.
3. the stress ga(u)ge for detection of tempered glass surface stress according to claim 1 and 2, it is characterized in that, described laser instrument (31) and polarizing plate (32) are arranged on a laser bench (33), laser bench (33) is slidably installed in dovetail groove guide rail (5), laser instrument (31) is red laser, and by the laser instrument spanner (34) that is arranged on laser bench (33) side, is adjusted the incident angle of light.
4. the stress ga(u)ge for detection of tempered glass surface stress according to claim 3, it is characterized in that, described laser instrument (31), by laser instrument battery case (35) power supply, has battery case power switch (36) and battery case power light (37) on laser instrument battery case (35).
5. the stress ga(u)ge for detection of tempered glass surface stress according to claim 1, it is characterized in that, described measurement component (4) has comprised measuring seat (41), quartzy compensator (42) is inserted in the below of measuring seat, analyser plate (43) is on quartzy compensator (42), angle measurement scale (44), on analyser plate (43), also has object lens (46) on angle measurement scale (44), and an eyepiece (45) is on object lens (46).
6. according to claim 1 or 5 for detection of the stress ga(u)ge of tempered glass surface stress, it is characterized in that, described angle measurement scale (44) is comprised of axle system (47) and dish system (48); Axle system (47) maintains static, and has 0 benchmark, and central authorities are with sight vane; Dish system (48) can be (47) rotation with respect to axle, and dish is that plate (49) is drawn with parallel lines by (48) central authorities, and edge is with 360 ° of index plates (50), and central authorities of dish system (48) are printing opacity equally; Parallel lines are drawn plate (49) and are fixed as one with index plate (50), and 0 ° of value of parallel lines and index plate is aimed at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603032.1U CN203490010U (en) | 2013-09-27 | 2013-09-27 | Stress meter for measuring surface stress of toughened glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603032.1U CN203490010U (en) | 2013-09-27 | 2013-09-27 | Stress meter for measuring surface stress of toughened glass |
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| Publication Number | Publication Date |
|---|---|
| CN203490010U true CN203490010U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320603032.1U Expired - Lifetime CN203490010U (en) | 2013-09-27 | 2013-09-27 | Stress meter for measuring surface stress of toughened glass |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316233A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Surface stress measuring device |
| CN104316245A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Detection device for glass surface stress |
| CN105181192A (en) * | 2015-09-29 | 2015-12-23 | 江苏亨通光电股份有限公司 | Handheld backlight-type glass stress gauge |
| CN105333980A (en) * | 2015-11-27 | 2016-02-17 | 苏州精创光学仪器有限公司 | Tempered glass surface stress measuring instrument |
| CN105698985A (en) * | 2016-02-06 | 2016-06-22 | 北京工业大学 | Thermal tempering stress detection device applicable to large-format sheet glass |
| CN106441655A (en) * | 2016-09-18 | 2017-02-22 | 北京杰福科技有限公司 | Glass surface stress detecting device |
| CN106500891A (en) * | 2016-11-29 | 2017-03-15 | 北京杰福科技有限公司 | Glass surface stress detection device and the detection prism for which |
| CN106839983A (en) * | 2017-03-06 | 2017-06-13 | 苏州精创光学仪器有限公司 | Stress Quadratic Finite Element detects all-in-one |
| WO2018050113A1 (en) * | 2016-09-18 | 2018-03-22 | 北京杰福科技有限公司 | Prism and glass surface stress detection device |
| CN108801610A (en) * | 2018-07-09 | 2018-11-13 | 北京石晶光电科技股份有限公司济源分公司 | A kind of laser detection wafer stress device |
| US11060930B2 (en) | 2015-09-30 | 2021-07-13 | Suzhou Ptc Optical Instrument Co., Ltd | Glass surface stress meter and multiple-tempered glass surface stress meter |
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2013
- 2013-09-27 CN CN201320603032.1U patent/CN203490010U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316233A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Surface stress measuring device |
| CN104316245A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Detection device for glass surface stress |
| CN105181192A (en) * | 2015-09-29 | 2015-12-23 | 江苏亨通光电股份有限公司 | Handheld backlight-type glass stress gauge |
| US11060930B2 (en) | 2015-09-30 | 2021-07-13 | Suzhou Ptc Optical Instrument Co., Ltd | Glass surface stress meter and multiple-tempered glass surface stress meter |
| CN105333980A (en) * | 2015-11-27 | 2016-02-17 | 苏州精创光学仪器有限公司 | Tempered glass surface stress measuring instrument |
| CN105698985B (en) * | 2016-02-06 | 2018-11-02 | 北京工业大学 | One kind being suitable for the physical toughened stress detection device of large format plate glass |
| CN105698985A (en) * | 2016-02-06 | 2016-06-22 | 北京工业大学 | Thermal tempering stress detection device applicable to large-format sheet glass |
| WO2018050113A1 (en) * | 2016-09-18 | 2018-03-22 | 北京杰福科技有限公司 | Prism and glass surface stress detection device |
| CN106441655A (en) * | 2016-09-18 | 2017-02-22 | 北京杰福科技有限公司 | Glass surface stress detecting device |
| CN106500891A (en) * | 2016-11-29 | 2017-03-15 | 北京杰福科技有限公司 | Glass surface stress detection device and the detection prism for which |
| CN106839983A (en) * | 2017-03-06 | 2017-06-13 | 苏州精创光学仪器有限公司 | Stress Quadratic Finite Element detects all-in-one |
| CN106839983B (en) * | 2017-03-06 | 2024-01-02 | 苏州精创光学仪器有限公司 | Stress quadratic element detects all-in-one |
| CN108801610A (en) * | 2018-07-09 | 2018-11-13 | 北京石晶光电科技股份有限公司济源分公司 | A kind of laser detection wafer stress device |
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