CN205374302U - Transparent liquid refractometry appearance - Google Patents
Transparent liquid refractometry appearance Download PDFInfo
- Publication number
- CN205374302U CN205374302U CN201620027160.XU CN201620027160U CN205374302U CN 205374302 U CN205374302 U CN 205374302U CN 201620027160 U CN201620027160 U CN 201620027160U CN 205374302 U CN205374302 U CN 205374302U
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- screw
- splitter
- refractive index
- fixed mirror
- mirror
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Abstract
The utility model relates to a transparent liquid refractometry appearance especially utilizes the measuring apparatu of interference of light principle to transparent liquid refracting index precision measurement. It includes horizontal adjusting screw, lock screw, the fine setting hand wheel, the coarse adjusting hand wheel, the reading window, lead screw meshing nut, the lead screw, the millimeter scale, the guide rail, the nut is advanced on the lead screw top, the beam -splitter, compensation plate, fixed mirror, inclination adjusting screw, vertical direction micrometer screw, horizontal micrometer screw, the calibrated scale, the cell, the magnetism pointer, but index glass, the viewing screen, a machine support, fixed mirror and frame rigid coupling, calibrated scale and guide rail sliding connection, beam -splitter and compensation plate parallel arrangement and fixed mirror, but the index glass all is 45 contained angles, the cell is placed on the pointer and can rotate along with the pointer. It utilizes the interference of light principle, arouses the contrast of interference fringe change through empty cell and after bearing the liquid that awaits measuring, measures the refracting index, the utility model discloses the refracting index accuracy that liquid was awaited measuring in the measurement is high, easy and simple to handle.
Description
Technical field
This utility model relates to a kind of transparency liquid refractive index measuring instrument, especially with interference of light principle, liquid refractivity is accurately measured.
Background technology
Refractive index is an important optical parametric of transparent material and trnaslucent materials, and refractive index has reacted some inwardness of material simultaneously, also plays an important role for understanding the structure of matter.Accurately measure certain liquid refractivity, produce in engineering and theoretical research all has a very important role.
At present, in refractive index number common method for measurement liquid, be generally geometric optics and wave optics method as: minimum deviation, glancing incidence method, Brewster horn cupping, newton are around-France, said method, require that testee carries out complicated processing, optical path requirements is complicated, and actual repeatability is not high, and precision is not high.Utilizing this new liquid refractive index measuring instrument, not only simple to operate, repeatable strong, cost is low, and certainty of measurement is higher.
Summary of the invention
This utility model relates to a kind of novel transparent instrument for determining index of refraction of liquid, it is possible to solve that prior art exists repeatable poor, to problems such as testing liquid processed complex, experimental implementation complexity, precision are not high.
For realizing above-mentioned requirements, the technical solution of the utility model is: a kind of novel transparent instrument for determining index of refraction of liquid, the contrast causing interference fringe to change after utilizing empty cuvette and carrying testing liquid, eliminate the cuvette impact for transmission light light path dexterously, can accurately measure the refractive index of transparency liquid under rotating low-angle.
A kind of novel transparent instrument for determining index of refraction of liquid, it is characterized in that: horizontal adjustment screw, lock screw, trimming hand wheel, coarse adjustment hands is taken turns, reading window, screw mandrel geared screw, screw mandrel, millimeter rule, guide rail, screw mandrel jacking nut, beam-splitter, compensating plate, fixed mirror, rake adjustment screw, vertical direction fine adjustment screw, WidFin screw, graduated disc, cuvette, magnetic pointer, movable mirror, film viewing screen, frame, described fixed mirror is affixed with frame, described movable mirror is connected with slide, described beam-splitter rear surface is coated with one layer of semipermeable membrane, realize the beam splitting of light, described beam-splitter and compensating plate be arranged in parallel and and movable mirror, fixed mirror is all in 45 ° of angles.
Described rake adjustment screw, is used for regulating fixed mirror and the gradient of movable mirror minute surface.
Described beam-splitter and compensating plate material therefor are refractive index and the identical glass plate of thickness.
Described graduated disc is placed between movable mirror and compensating plate, and is connected with slide.
Described cuvette is placed on magnetic pointer and can rotate on graduated disc with pointer.
Effect of the present utility model: a kind of novel transparent instrument for determining index of refraction of liquid, practical reliable, science is feasible, and equipment is simple, it is not necessary to testing liquid makes any processing and changes, and repeatable strong, operation is simple and clear, and certainty of measurement is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 internal structure schematic diagram of the present utility model；
Symbol description:
1. horizontal adjustment screw, 2. lock screw, 3. trimming hand wheel, 4. coarse adjustment handwheel, 5. reading window, 6. screw mandrel geared screw, 7. screw mandrel, 8. millimeter rule, 9. guide rail, 10. screw mandrel jacking nut, 11. beam-splitters, 12. compensating plates, 13. fixed mirror, 14. rake adjustment screws, 15. vertical direction fine adjustment screws, 16. WidFin screws, 17. pointer scale dish, 18. cuvettes, 19. magnetic pointers, 20. movable mirror, 21. film viewing screens, 22. frames.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
nullAs depicted in figs. 1 and 2，A kind of transparency liquid refractive index measuring instrument，Including horizontal adjustment screw 1、Lock screw 2、Trimming hand wheel 3、Coarse adjustment handwheel 4、Reading window 5、Screw mandrel geared screw 6、Screw mandrel 7、Millimeter rule 8、Guide rail 9、Screw mandrel jacking nut 10、Beam-splitter 11、Compensating plate 12、Fixed mirror 13、Rake adjustment screw 14、Vertical direction fine adjustment screw 15、WidFin screw 16、Pointer scale dish 17、Cuvette 18、Magnetic pointer 19、Movable mirror 20、Film viewing screen 21、Frame 22，Described fixed mirror 13 is affixed with frame 22，Movable mirror 20 and guide rail 9 are slidably connected，Described graduated disc 17 is slidably connected with guide rail 9，Described beam-splitter 11 rear surface is coated with one layer of semi-transmissive film，Realize the beam splitting of light，Described beam-splitter 11 be arranged in parallel and and movable mirror with compensating plate 12、Fixed mirror is all in 45 ° of angles，Described beam-splitter 11 is identical with compensating plate 12 material and thickness，Optical path difference can be realized compensate.
Described a kind of novel transparent instrument for determining index of refraction of liquid, it is characterised in that rake adjustment screw 14, is used for regulating fixed mirror 13 and the gradient of movable mirror 20 minute surface.
Described a kind of novel transparent instrument for determining index of refraction of liquid, it is characterised in that beam-splitter 11 is identical with the refractive index of compensating plate 12 material therefor and thickness.
Described a kind of novel transparent instrument for determining index of refraction of liquid, it is characterised in that before graduated disc 17 is placed in movable mirror 20, and be slidably connected with guide rail 9.
Described a kind of novel transparent instrument for determining index of refraction of liquid, it is characterised in that cuvette 18 is placed on magnetic pointer 19, can rotate on graduated disc 17 with pointer 19.
During use, after laser shines beam-splitter 11, being divided into orthogonal transmission light and reflection light two-beam on semipermeable membrane, transmission light is mapped to fixed mirror 13, after fixed mirror 13 reflects, through compensating plate 12, and directive film viewing screen 21 after reflection on the semipermeable membrane of compensating plate 11；Reflection light is mapped to movable mirror 20, after movable mirror 20 reflects, through beam-splitter 11 directive interference image film viewing screen.Due to common mistake the first parallel plate 11 3 times before and after reflection light, and transmission light is only by beam-splitter 11 once, having had compensating plate 12, they light paths in glass are just equal, when then calculating the optical path difference of this two-beam, only need to calculate the aerial optical path difference of two-beam just passable.After cuvette 18 loads testing liquid, slowly rotating pointer 19 drives cuvette 18 relative scale dish 17 to rotate certain angle, light is changed by the light path of cuvette 18, interference fringe on film viewing screen 21 changes, identical angle is rotated when cuvette 18 is empty, measure the change of interference fringe, what testing liquid in cuvette 17 due to no matter, it is identical for rotating the optical path difference that identical angle causes at cuvette 17 wall in two kinds of situations, therefore the difference of interference fringe change in two kinds of situations, eliminate the need for the impact on transmission light light path of cuvette 17 wall, and only consider the optical path difference that in cuvette 17, filled solution causes under certain rotational angle, extrapolate liquid refractivity.
This utility model is not limited to above-mentioned specific embodiment, and all any changes done based on this utility model or modification belong to the scope that this utility model claims.
Claims (5)
- null1. a transparency liquid refractive index measuring instrument，It is characterized in that: horizontal adjustment screw (1)、Lock screw (2)、Trimming hand wheel (3)、Coarse adjustment handwheel (4)、Reading window (5)、Screw mandrel geared screw (6)、Screw mandrel (7)、Millimeter rule (8)、Guide rail (9)、Screw mandrel jacking nut (10)、Beam-splitter (11)、Compensating plate (12)、Fixed mirror (13)、Rake adjustment screw (14)、Vertical direction fine adjustment screw (15)、WidFin screw (16)、Graduated disc (17)、Cuvette (18)、Magnetic pointer (19)、Movable mirror (20)、Film viewing screen (21)、Frame (22)，Described fixed mirror (13) is affixed with frame (22)，Movable mirror (20) and guide rail (9) are slidably connected，Described graduated disc (17) and guide rail (9) are slidably connected，Described beam-splitter (11) rear surface is coated with one layer of semi-transmissive film，Realize the beam splitting of light，Described beam-splitter (11) and compensating plate (12) be arranged in parallel and and movable mirror、Fixed mirror is all in 45 ° of angles，Described fixed mirror (13) and movable mirror (20) are plane mirror.
- 2. a kind of transparency liquid refractive index measuring instrument according to claim 1, it is characterised in that: rake adjustment screw (14), it is used for regulating fixed mirror (13) and the gradient of movable mirror (20) minute surface.
- 3. a kind of transparency liquid refractive index measuring instrument according to claim 1, it is characterised in that: beam-splitter (11) and compensating plate (12) material therefor are refractive index and the identical glass plate of thickness.
- 4. a kind of transparency liquid refractive index measuring instrument according to claim 1, it is characterised in that: it is front that graduated disc (17) is placed in movable mirror (20), and is slidably connected with guide rail (9).
- 5. a kind of transparency liquid refractive index measuring instrument according to claim 1, it is characterised in that: cuvette (18) is placed on magnetic pointer (19) and above and above can rotate at graduated disc (17) with magnetic pointer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027160.XU CN205374302U (en) | 2016-01-13 | 2016-01-13 | Transparent liquid refractometry appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027160.XU CN205374302U (en) | 2016-01-13 | 2016-01-13 | Transparent liquid refractometry appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205374302U true CN205374302U (en) | 2016-07-06 |
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ID=56276676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620027160.XU Expired - Fee Related CN205374302U (en) | 2016-01-13 | 2016-01-13 | Transparent liquid refractometry appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205374302U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643527A (en) * | 2016-07-30 | 2017-05-10 | 太原工业学院 | Wave-optical comprehensive test instrument equipment |
| CN107064065A (en) * | 2017-04-10 | 2017-08-18 | 清华大学 | Measuring device for liquid refractive index and measuring method |
| CN109406402A (en) * | 2018-09-05 | 2019-03-01 | 浙江省海洋水产研究所 | A kind of general cuvette device of absorption fluorescence and measurement method |
| CN110687075A (en) * | 2019-10-28 | 2020-01-14 | 华中科技大学 | Optical workpiece uniformity interference detection method |
-
2016
- 2016-01-13 CN CN201620027160.XU patent/CN205374302U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643527A (en) * | 2016-07-30 | 2017-05-10 | 太原工业学院 | Wave-optical comprehensive test instrument equipment |
| CN107064065A (en) * | 2017-04-10 | 2017-08-18 | 清华大学 | Measuring device for liquid refractive index and measuring method |
| CN109406402A (en) * | 2018-09-05 | 2019-03-01 | 浙江省海洋水产研究所 | A kind of general cuvette device of absorption fluorescence and measurement method |
| CN110687075A (en) * | 2019-10-28 | 2020-01-14 | 华中科技大学 | Optical workpiece uniformity interference detection method |
| CN110687075B (en) * | 2019-10-28 | 2020-12-29 | 华中科技大学 | Optical workpiece uniformity interference detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20190113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |