CN102749288A - Dynamic fiber double-refraction measuring instrument - Google Patents
Dynamic fiber double-refraction measuring instrument Download PDFInfo
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- CN102749288A CN102749288A CN201210251508XA CN201210251508A CN102749288A CN 102749288 A CN102749288 A CN 102749288A CN 201210251508X A CN201210251508X A CN 201210251508XA CN 201210251508 A CN201210251508 A CN 201210251508A CN 102749288 A CN102749288 A CN 102749288A
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Abstract
The invention discloses a dynamic fiber double-refraction measuring instrument which comprises a transmission and reflection polarization microscope, a camera, a computer, a display, a printer and a dynamic fiber testing platform. The transmission and reflection polarization microscope is provided with a polarizer, a polarization analyzer, a testing jig and a differential-free direct optical path compensating device, the camera is fixed onto the transmission and reflection polarization microscope, the computer is electrically connected with the camera, the display and the printer are respectively connected with the computer, the dynamic fiber testing platform is used for testing fibers, is fixed onto the testing jig of the polarization microscope and further consists of a carrying device for the fibers, two fiber guide wheels and two miniature motors, the two fiber guide wheels are disposed on two sides of the carrying device respectively and used for guiding the fibers, and the miniature motors are respectively arranged on outer sides of the fiber guide wheels, stretch the fibers and apply pretension and drafting force on the fibers, so that the fibers deform in the carrying device in a tensile manner. Accordingly, a dynamic fiber testing effect is achieved.
Description
Technical field
The present invention relates to the macromolecular material field of measurement, particularly a kind of dynamic fiber birefringence measurement appearance.
Background technology
According to national standard, the textile fibres birefraction has Becke-line method, interferometric method and penalty method.
Becke-line method and interferometric method are measured numerous and diverse, time-consuming, the influence of liquid body refractive index.
Penalty method is divided into the San'a and covers phase compensation method, fixed light path difference penalty method and Bei Ruike optical path difference penalty method.
Domestic traditional fixed light path difference penalty method is a crystal compensating plate of making the multi-disc different size, makes it to obtain last optical path difference compensation through the mode of stack.Method time-consuming poor repeatability, inconvenient operation, measuring accuracy and the poor repeatability of the multiple crystal compensating plate combination of this making.
The said method that external research and Related product have been abandoned, and adopt the Bei Ruike penalty method, use the artificial optical path difference compensator that rotates continuously for it.Though easy to operate, measuring accuracy is also high, it also can only be observed and measure the fiber birefraction under static condition, can't accomplish kinetic measurement.
What develop now is to rotate the direct sunshine path difference compensation system that fine adjustment function is arranged automatically continuously; Broken through external existing product; Configuration drawing of fiber device and control automatically; Can dynamically measure the fiber birefraction, make the measuring technique of birefraction that breakthrough development arranged, fill up domestic and international blank at this field dynamic measuring tech and product.
There is following defective in prior art:
First: can only under static condition, observe and measure, can't accomplish kinetic measurement to the fiber birefraction;
Second: adopt manual adjustment optical path difference compensation system, precision is not high, and cumbersome;
The 3rd: the adjustment angular range to eyeglass is wide inadequately, is not suitable for the compensation of miscellaneous new material.
Summary of the invention
In order to overcome the defective of prior art; The invention discloses a kind of dynamic fiber birefringence measurement appearance; It breaks through traditional differential crystal optical path difference compensation that has; And use novel stepless difference optical path compensation, by the crystal compensation system that contains fine adjustment function of continuous rotation, the optical path difference of generation presents linear relationship with respect to rotational angle.Compare conventional crystal compensation, wide ranges, measuring accuracy is high, and is easy and simple to handle.Under dynamic and static, measure the continuous Changing Pattern of the birefringence of fiber with stretching form process.Computing machine obtains and handles various fiber birefringence interference color coloured picture spectrums synchronously, realizes quick specialty analysis, calculates birefraction and corresponding orientation value automatically.
Technical scheme of the present invention is following:
A kind of dynamic fiber birefringence measurement appearance comprises: what have the polarizer, analyzer, testing jig reflects polarizing microscope, camera, computing machine, display, printer thoroughly; Camera is fixed on and reflects on the polarizing microscope; Computing machine and camera are electrically connected; Display, printer are connected with computing machine respectively; Also comprise: the dynamic fiber test platform of test fiber; Said test platform is fixed on the testing jig of said polarizing microscope;
Said dynamic fiber test platform further comprises:
The bogey of fiber, be arranged at the bogey both sides respectively and be used for two godet wheels of guide fiber, be arranged at two micromachines that fiber is stretched in the godet wheel outside respectively;
Said micromachine imposes pretension and drafting force to fiber, makes fiber in bogey, carry out stretcher strain, thereby reaches the test effect of dynamic fiber.
Preferably, described dynamic fiber birefringence measurement appearance, its bogey comprises a groove structure, said groove structure both sides correspondence has a hole separately; Fiber is worn to another hole from a hole; Each the hole corresponding godet wheel in the outside and a motor.
Preferably, described dynamic fiber birefringence measurement appearance, it also comprises the direct light path compensation system of stepless difference, it is arranged between the polarizer, the analyzer; The direct light path compensation system of said stepless difference further comprises: crystal complementary color part and micromatic setting part, and said crystal complementary color part is in the same place with the micromatic setting partial fixing; Crystal complementary color part comprises the eyeglass that compensates light path at least.
Preferably, described dynamic fiber birefringence measurement appearance, its crystal complementary color part also comprises and is provided with groove in the said mechanical long handle by mechanical long handle; Said eyeglass is arranged in the groove.
Preferably, described dynamic fiber birefringence measurement appearance, its micromatic setting partly comprises stepper motor, worm and gear and worm-wheel shaft; Said worm and gear comprises worm gear and worm screw; Said worm gear is that gear is connected with worm screw; Said stepper motor is connected in said worm screw; Said worm-wheel shaft and said worm gear are fixed together; Said Stepping Motor Control end is connected with computing machine is electric.
Preferably, described dynamic fiber birefringence measurement appearance also is provided with the eyeglass rotating shaft in its mechanical long handle, and said eyeglass rotating shaft one end and said worm-wheel shaft are fixed together; The said eyeglass rotating shaft other end and said groove are fixed together.
Preferably, described dynamic fiber birefringence measurement appearance, its bogey is a square groove, said fiber places said square groove; Said square groove two ends are provided with aperture; Said fiber passes aperture and is around on the said godet wheel, and said fiber two ends are connected on the corresponding micromachine separately.
Preferably, described dynamic fiber birefringence measurement appearance, its eyeglass is processed for the strontium fluoride crystal material, and it is the rectangle thin slice; Said eyeglass length is 8 ± 0.001mm; Width is 3 ± 0.001mm; Thickness is 1 ± 0.001mm.
Preferably, described dynamic fiber birefringence measurement appearance, its mechanical long handle length is 18 ± 0. 1mm; Width is 5 ± 0. 01mm; Thickness is 3 ± 0.001mm; Said internal recess length is 9 ± 0. 01mm; Recess width is 3.3 ± 0. 01mm; Depth of groove is 1.2 ± 0.001mm; The top of said groove top and said mechanical long handle is at a distance of 2 ± 0. 01mm.
Preferably, described dynamic fiber birefringence measurement appearance, its square groove length is 15 ± 0. 1mm; Width is 5 ± 0. 01mm; Highly be 5 ± 0. 01mm; Said small aperture is 1.2 ± 0. 1mm; Both sides godet wheel centre distance is 20 ± 0. 1mm.
Compared with prior art, beneficial effect of the present invention is following:
First: can under dynamic condition, observe and measure to the fiber birefraction
Second: the miniature step-by-step controller that is used with light path direct compensation device of the present invention, can finely tune the rotation of eyeglass, degree of regulation is higher.
The 3rd: used its material special construction of eyeglass of light path direct compensation device of the present invention is special.
Description of drawings
Fig. 1 is the fundamental diagram of specific embodiment of the invention dynamic fiber birefringence measurement appearance;
Fig. 2 is the internal cross section figure of specific embodiment of the invention optical path compensation device;
Fig. 3 is the structural representation of specific embodiment of the invention optical path compensation device;
Fig. 4 is the plan structure synoptic diagram of specific embodiment of the invention drafting assembly;
Fig. 5 is the side-looking structural representation of specific embodiment of the invention drafting assembly.
Embodiment
Embodiment
Like Fig. 1, a kind of dynamic fiber birefringence measurement appearance comprises: what have the direct light path compensation system 4 of the polarizer 6, analyzer 2, testing jig and stepless difference reflects polarizing microscope 3, camera 7, computing machine 13, display 12, printer 14 thoroughly; Camera is fixed on and reflects on the polarizing microscope; Computing machine and camera are electrically connected; Display, printer are connected with computing machine respectively.
Like Fig. 1 and Fig. 4 (or Fig. 5), also comprise: the dynamic fiber test platform 5 of test fiber; Said test platform 5 is fixed on the testing jig of said polarizing microscope; Said dynamic fiber test platform further comprises: the bogey 201 of fiber, bogey are a square groove, and said fiber places said square groove; Said square groove two ends are provided with aperture 202 and 203, be arranged at the bogey both sides respectively is used for two godet wheels 204 and 205 of guide fiber, is arranged at two micromachines 206 that fiber is stretched and 207 in the godet wheel outside respectively; Fiber 208 passes aperture 202 and 203 and is around on said godet wheel 204 and 205, and said fiber two ends are connected on the corresponding micromachine 206 and 207 separately; Said micromachine imposes pretension and tractive force to fiber, makes fiber in bogey, carry out stretcher strain, thereby reaches the test effect of dynamic fiber; Said square groove length is 15 ± 0. 1mm; Width is 5 ± 0. 01mm; Highly be 5 ± 0. 01mm; Said small aperture is 1.2 ± 0. 1mm; Both sides godet wheel centre distance is 20 ± 0. 1mm.
Like Fig. 1 and Fig. 2, the direct light path compensation system 4 of described stepless difference, it is arranged between the polarizer 6, the analyzer 2; The direct light path compensation system of said stepless difference further comprises: crystal complementary color part and micromatic setting part, and said crystal complementary color part is in the same place with the micromatic setting partial fixing; Crystal complementary color part comprises the eyeglass 105 that compensates light path at least; Said eyeglass is processed for the strontium fluoride crystal material, and it is the rectangle thin slice; Said eyeglass length is 8 ± 0.001mm; Width is 3 ± 0.001mm; Thickness is 1 ± 0.001mm.
Like Fig. 2, said crystal complementary color part also comprises and is provided with groove 107 in the said mechanical long handle by mechanical long handle 106; Said eyeglass 105 is arranged in the groove 107; Said mechanical long handle length is 18 ± 0. 1mm; Width is 5 ± 0. 01mm; Thickness is 3 ± 0.001mm; Said groove length is 9 ± 0. 01mm; Recess width is 3.3 ± 0. 01mm; Depth of groove is 1.2 ± 0.001mm; The top of said groove top and said mechanical long handle is at a distance of 2 ± 0. 01mm.
Like Fig. 2 with like Fig. 3, said micromatic setting partly comprises stepper motor 108, worm and gear and worm-wheel shaft 102; Said worm and gear comprises worm gear 103 and worm screw 101; Said worm gear 103 is connected for gear with worm screw 101; Said stepper motor 108 is connected in said worm screw 101; Said worm-wheel shaft and said worm gear are fixed together; Said Stepping Motor Control end is connected with computing machine is electric.
Like Fig. 2, also be provided with eyeglass rotating shaft 104 in the said mechanical long handle 106, said eyeglass rotating shaft one end and said worm-wheel shaft 102 are fixed together; The said eyeglass rotating shaft other end and said groove 107 are fixed together; The stepper motor fine setting is rotated and is driven the worm and gear rotation; Because worm-wheel shaft is fixed on the worm and gear, worm-wheel shaft also rotates thereupon, also rotates thereby drive the eyeglass rotating shaft thereupon; And groove also is fixed in the eyeglass rotating shaft, so interlock area index glass sheet rotates together; The angle fine setting of the rotating band index glass sheet that described whole process is exactly a stepper motor; Because the Stepping Motor Control end is controlled by computing machine; So the angle of its rotation can reach very high precision, so the fine setting of the angle of eyeglass also can reach high precision, in the present embodiment; Because the special manufacturing of worm gear equipment, its fine setting angle can reach positive and negative 45 degree.
The principle of work of a kind of dynamic fiber birefringence measurement of brief description specific embodiment of the invention appearance:
When testing, said dynamic fiber test platform is fixed on the said testing jig that reflects polarizing microscope; The fiber of dynamic operation like Fig. 4 or Fig. 5, makes it stretch the parallel dynamic fiber test platform that places, and the water of moistening fiber is housed in the wherein said bogey; Micromachine in the said dynamic fiber test platform is by computer control; Micromachine is accurately controlled the pretension of tested fiber; Simultaneously tested fiber is accurately sent into the precalculated position of measuring in the light path, at microslide, regulate polarization microscope at tested fiber loam cake; At first make the polarizer and analyzer quadrature, the visual field is dark entirely.
The running of computer-controlled stepper motor when compensating the optical path difference that the light microscopic sheet produces and the birefraction of tested fiber samples matches, just can be accomplished in the birefringence of the dynamic fiber of mensuration down with the continuous Changing Pattern in the drawing-off form process; Simultaneously under the synchronous shooting of camera; Send into computing machine through image capture interface; Computing machine obtains and handles various fiber birefringences and interferes color atlas; Realize quick specialty analysis through the specialty analysis software in the computing machine again, calculate fiber birefraction and corresponding orientation value automatically, and through printer the most at last test structure print.
In the present embodiment, computing machine is uploaded and is useful on the image capture software that the control camera is taken MIcrosope image, the software that specialty analysis software that is used for the image that collects is analyzed and control step motor and micromachine turn round.
The preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and is merely described embodiment.Obviously, according to the content of this instructions, can do a lot of modifications and variation.These embodiment are chosen and specifically described to this instructions, is in order to explain principle of the present invention and practical application better, thereby person skilled can be utilized the present invention well under making.The present invention only receives the restriction of claims and four corner and equivalent.
Claims (10)
1. dynamic fiber birefringence measurement appearance comprises: what have the polarizer, analyzer, testing jig reflects polarizing microscope, camera, computing machine, display, printer thoroughly; Camera is fixed on and reflects on the polarizing microscope; Computing machine and camera are electrically connected; Display, printer are connected with computing machine respectively; It is characterized in that, also comprise: the dynamic fiber test platform of test fiber; Said test platform is fixed on the testing jig of said polarizing microscope;
Said dynamic fiber test platform further comprises:
The bogey of fiber, be arranged at the bogey both sides respectively and be used for two godet wheels of guide fiber, be arranged at two micromachines that fiber is stretched in the godet wheel outside respectively;
Said micromachine imposes pretension and drafting force to fiber, makes fiber in bogey, carry out stretcher strain, thereby reaches the test effect of dynamic fiber.
2. a kind of dynamic fiber birefringence measurement appearance according to claim 1 is characterized in that said bogey comprises a groove structure, and said groove structure both sides correspondence has a hole separately; Fiber is worn to another hole from a hole; Each the hole corresponding godet wheel in the outside and a motor.
3. a kind of dynamic fiber birefringence measurement appearance according to claim 1 is characterized in that, also comprises the direct light path compensation system of stepless difference, and it is arranged between the polarizer, the analyzer; The direct light path compensation system of said stepless difference further comprises:
Crystal complementary color part and micromatic setting part, said crystal complementary color part is in the same place with the micromatic setting partial fixing; Crystal complementary color part comprises the eyeglass that compensates light path at least.
4. a kind of dynamic fiber birefringence measurement appearance according to claim 3 is characterized in that, said crystal complementary color part also comprises and is provided with groove in the said mechanical long handle by mechanical long handle; Said eyeglass is arranged in the groove.
5. according to claim 3 or 4 described a kind of dynamic fiber birefringence measurement appearance, it is characterized in that said micromatic setting partly comprises stepper motor, worm and gear and worm-wheel shaft; Said worm and gear comprises worm gear and worm screw; Said worm gear is that gear is connected with worm screw; Said stepper motor is connected in said worm screw; Said worm-wheel shaft and said worm gear are fixed together; Said Stepping Motor Control end is connected with computing machine is electric.
6. a kind of dynamic fiber birefringence measurement appearance according to claim 5 is characterized in that also be provided with the eyeglass rotating shaft in the said mechanical long handle, said eyeglass rotating shaft one end and said worm-wheel shaft are fixed together; The said eyeglass rotating shaft other end and said groove are fixed together.
7. a kind of dynamic fiber birefringence measurement appearance according to claim 2 is characterized in that said bogey is a square groove, and said fiber places said square groove; Said square groove two ends are provided with aperture; Said fiber passes aperture and is around on the said godet wheel, and said fiber two ends are connected on the corresponding micromachine separately.
8. a kind of dynamic fiber birefringence measurement appearance according to claim 3 is characterized in that,
Said eyeglass is processed for the strontium fluoride crystal material, and it is the rectangle thin slice; Said eyeglass length is 8 ± 0.001mm; Width is 3 ± 0.001mm; Thickness is 1 ± 0.001mm.
9. a kind of dynamic fiber birefringence measurement appearance according to claim 4 is characterized in that said mechanical long handle length is 18 ± 0. 1mm; Width is 5 ± 0. 01mm; Thickness is 3 ± 0.001mm;
Said internal recess length is 9 ± 0. 01mm; Recess width is 3.3 ± 0. 01mm; Depth of groove is 1.2 ± 0.001mm; The top of said groove top and said mechanical long handle is at a distance of 2 ± 0. 01mm.
10. birefringence measurement appearance according to claim 7 is characterized in that, said square groove length is 15 ± 0. 1mm; Width is 5 ± 0. 01mm; Highly be 5 ± 0. 01mm; Said small aperture is 1.2 ± 0. 1mm; Both sides godet wheel centre distance is 20 ± 0. 1mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251508.XA CN102749288B (en) | 2012-07-20 | 2012-07-20 | Dynamic fiber double-refraction measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251508.XA CN102749288B (en) | 2012-07-20 | 2012-07-20 | Dynamic fiber double-refraction measuring instrument |
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| CN102749288A true CN102749288A (en) | 2012-10-24 |
| CN102749288B CN102749288B (en) | 2014-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727743A (en) * | 2017-10-30 | 2018-02-23 | 上海凯历迪新材料科技股份有限公司 | A kind of dynamic fiber degree of orientation measuring instrument and the method for measuring the dynamic fiber degree of orientation |
| CN113533254A (en) * | 2021-03-25 | 2021-10-22 | 中国科学院福建物质结构研究所 | Testing device and testing method for birefringence of optical material |
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| US20050122514A1 (en) * | 2003-12-03 | 2005-06-09 | Jang Ho F. | Circular polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres |
| CN1664198A (en) * | 2003-12-19 | 2005-09-07 | 谢尔勒.施韦特.梅特勒股份公司 | Air jet texturing machine for manufacturing fancy yarns |
| WO2008026363A1 (en) * | 2006-08-29 | 2008-03-06 | Tokyo Denki University | Double refraction measuring equipment and double refraction measuring method |
| CN201177599Y (en) * | 2008-03-19 | 2009-01-07 | 中国科学院力学研究所 | Ellipsometric imaging device adopting rotating compensator for integration and sampling |
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2012
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Patent Citations (4)
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| US20050122514A1 (en) * | 2003-12-03 | 2005-06-09 | Jang Ho F. | Circular polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres |
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| WO2008026363A1 (en) * | 2006-08-29 | 2008-03-06 | Tokyo Denki University | Double refraction measuring equipment and double refraction measuring method |
| CN201177599Y (en) * | 2008-03-19 | 2009-01-07 | 中国科学院力学研究所 | Ellipsometric imaging device adopting rotating compensator for integration and sampling |
Non-Patent Citations (1)
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| 吕善模: "第6届中国国际纺织机械展览会展出的新型纤维测试仪器", 《纤维标准与检验》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107727743A (en) * | 2017-10-30 | 2018-02-23 | 上海凯历迪新材料科技股份有限公司 | A kind of dynamic fiber degree of orientation measuring instrument and the method for measuring the dynamic fiber degree of orientation |
| CN113533254A (en) * | 2021-03-25 | 2021-10-22 | 中国科学院福建物质结构研究所 | Testing device and testing method for birefringence of optical material |
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