CN202189012U - Experimental facility for measuring refractive index of flat-plate type transparent medium - Google Patents
Experimental facility for measuring refractive index of flat-plate type transparent medium Download PDFInfo
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- CN202189012U CN202189012U CN2011203399763U CN201120339976U CN202189012U CN 202189012 U CN202189012 U CN 202189012U CN 2011203399763 U CN2011203399763 U CN 2011203399763U CN 201120339976 U CN201120339976 U CN 201120339976U CN 202189012 U CN202189012 U CN 202189012U
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- transparent medium
- refractive index
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- type transparent
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- 239000005337 ground glass Substances 0.000 claims abstract description 13
- 238000002474 experimental method Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000013519 translation Methods 0.000 description 2
- 239000005338 frosted glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model relates to an experimental facility for measuring the refractive index of a flat-plate type transparent medium; the experimental facility for measuring the refractive index of the flat-plate type transparent medium comprises a laser, a polaroid sheet group, a beam expanding lens, a collimation lens I, a collimation lens II, a thin ground glass screen, a flat-plate type transparent medium to be tested, a camera and a microcomputer, wherein the laser, the polaroid sheet group, the beam expanding lens, the collimation lens I, the collimation lens II, the thin ground glass screen, the flat-plate type transparent medium to be tested and the camera are sequentially and coaxially arranged; and the camera is connected with the microcomputer. By adopting the experimental facility, only the variation of the diameter of a light spot on the thin ground glass screen needs to be monitored before and after the flat-plate type transparent medium to be tested is put in a light path system, and a corresponding refractive index can be obtained according to calibration parameters; and therefore, the experimental facility is suitable for experiments related to refractive index measurement in science and technology universities and the monitoring on the refractive index of the flat-plate type transparent medium in industrial production and has perfect functions and high cost performance.
Description
Technical field
The utility model relates to a kind of experimental provision of measuring plate transparent medium refractive index, specifically a kind of experimental provision that is applicable to science and engineering colleges and universities refractometry related experiment and the monitoring of commercial production middle plateform type transparent medium refractive index.
Background technology
Refractive index is an important optical parametric of medium, and the refractometry related experiment is the Experiments of Optics of science and engineering colleges and universities comparison basis, and refractive index also is the important performance indexes of some Related products simultaneously.With regard to the measurement of plate transparent medium refractive index, have in the experiment and utilize Abbe refractometer to measure, its shortcoming is that the medium refraction index that only is applicable to particular range is measured; Have according to light beam through the laterally offset that medium produces, utilize line array CCD or PSD sensor side-play amount refractive Index Measurement again, its shortcoming is to need to confirm beam incident angle, and regulate line array CCD or the PSD sensor vertical with emergent ray, operate relative difficult; Utilize interference technique to measure in addition, though can reach higher precision, it is higher to requirement for experiment condition, complex operation.
Summary of the invention
To above problem, the purpose of the utility model provides the experimental provision of a kind of measurement range plate transparent medium refractive index unrestricted, easy and simple to handle.
For realizing above-mentioned purpose; The utility model adopts a kind of experimental provision of measuring plate transparent medium refractive index; A kind of experimental provision of measuring plate transparent medium refractive index comprises laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, camera, microcomputer; Laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, the coaxial successively setting of camera, camera is connected with microcomputer.
During work; Laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, camera are adjusted to coaxial, in light path, put into before and after the plate transparent medium to be measured, through the beam convergence of the collimation lens II generation axial translation of naming a person for a particular job; Spot diameter on thin ground glass can change accordingly; Hot spot is obtained by microcomputer through camera, carries out the VB Programming with Pascal Language then, by computer real-time measuring light spot diameter; In the situation of known scaled parameter, can provide refractive index according to spot diameter and plate transparent medium thickness.
The utility model will be because of putting into plate transparent medium to be measured front and back, and the axial translation of beam convergence point transforms the variation for spot diameter on the thin ground glass, and by computer real-time measuring light spot diameter, significantly reduce operation and required, improved efficiency of measurement.During experiment; Only need to regulate laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, camera to coaxial; And calibrate in advance, measuring media thickness can be changed and draws refractive index according to putting into before and after the medium on the thin frosted glass spot diameter by computing machine; And to the not restriction of medium refraction index size, simple and convenient, save time and save trouble.The utility model is applicable to the monitoring of science and engineering colleges and universities refractometry related experiment and commercial production middle plateform type transparent medium refractive index, perfect in shape and function, and cost performance is high.
Description of drawings
Fig. 1 is the cut-open view of the utility model embodiment.
Embodiment
As shown in Figure 1; The specific embodiment of the utility model is a kind of experimental provision of measuring plate transparent medium refractive index; Comprise laser instrument 1, polarizer group 2, beam expanding lens 3, collimation lens I 4, collimation lens II 5, plate transparent medium to be measured 6, thin ground glass 7, camera 8, microcomputer 10; Laser instrument 1, polarizer group 2, beam expanding lens 3, collimation lens I 4, collimation lens II 5, plate transparent medium to be measured 6, thin ground glass 7, the coaxial successively setting of camera 8; Camera 8 one ends contain USB connecting line 9, and USB connecting line 9 other ends connect microcomputer 10.
Claims (2)
1. experimental provision of measuring plate transparent medium refractive index; It is characterized in that: the experimental provision of measuring plate transparent medium refractive index comprises laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, camera, microcomputer; Laser instrument, polarizer group, beam expanding lens, collimation lens I, collimation lens II, thin ground glass, plate transparent medium to be measured, the coaxial successively setting of camera, camera is connected with microcomputer.
2. a kind of experimental provision of measuring plate transparent medium refractive index according to claim 1 is characterized in that: said camera is connected with microcomputer through the usb data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203399763U CN202189012U (en) | 2011-09-05 | 2011-09-05 | Experimental facility for measuring refractive index of flat-plate type transparent medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203399763U CN202189012U (en) | 2011-09-05 | 2011-09-05 | Experimental facility for measuring refractive index of flat-plate type transparent medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189012U true CN202189012U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203399763U Expired - Fee Related CN202189012U (en) | 2011-09-05 | 2011-09-05 | Experimental facility for measuring refractive index of flat-plate type transparent medium |
Country Status (1)
| Country | Link |
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| CN (1) | CN202189012U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749303A (en) * | 2012-07-14 | 2012-10-24 | 浙江师范大学 | Device and method for measuring refractive index of flat plate type transparent medium |
| CN109470650A (en) * | 2018-04-19 | 2019-03-15 | 福建师范大学 | A kind of device and method measuring liquid refractivity |
| CN110927103A (en) * | 2019-11-27 | 2020-03-27 | 四川大学 | Method for measuring refractive index of transparent cuboid |
| CN111207911A (en) * | 2020-01-19 | 2020-05-29 | 中国科学院上海光学精密机械研究所 | Method for measuring refractive index of parallel plane transparent solid material |
| WO2023071215A1 (en) * | 2021-10-28 | 2023-05-04 | 深圳迈塔兰斯科技有限公司 | Thin film refractive index test apparatus and method |
-
2011
- 2011-09-05 CN CN2011203399763U patent/CN202189012U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749303A (en) * | 2012-07-14 | 2012-10-24 | 浙江师范大学 | Device and method for measuring refractive index of flat plate type transparent medium |
| CN102749303B (en) * | 2012-07-14 | 2016-06-29 | 浙江师范大学 | A kind of apparatus and method measuring refractive index of flat-plate type transparent medium |
| CN109470650A (en) * | 2018-04-19 | 2019-03-15 | 福建师范大学 | A kind of device and method measuring liquid refractivity |
| CN110927103A (en) * | 2019-11-27 | 2020-03-27 | 四川大学 | Method for measuring refractive index of transparent cuboid |
| CN111207911A (en) * | 2020-01-19 | 2020-05-29 | 中国科学院上海光学精密机械研究所 | Method for measuring refractive index of parallel plane transparent solid material |
| WO2023071215A1 (en) * | 2021-10-28 | 2023-05-04 | 深圳迈塔兰斯科技有限公司 | Thin film refractive index test apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20130905 |