CN202494637U - Double-lens device for measuring liquid reflective index - Google Patents
Double-lens device for measuring liquid reflective index Download PDFInfo
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- CN202494637U CN202494637U CN 201220102812 CN201220102812U CN202494637U CN 202494637 U CN202494637 U CN 202494637U CN 201220102812 CN201220102812 CN 201220102812 CN 201220102812 U CN201220102812 U CN 201220102812U CN 202494637 U CN202494637 U CN 202494637U
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- double
- reflective index
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- measuring
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Abstract
The utility model discloses a double-lens device for measuring liquid reflective index, relates to a measuring device of liquid reflective index and is aimed to solve the problems that the measurement of the reflective index has low precision, small scope and is complicated to operate since the liquid reflective index is measured through abbe refractometer or grazing incidence method in physical experiments at present. Provided is the double-lens device for measuring the liquid reflective index. The double-lens device for measuring the liquid reflective index comprises a sodium lamp, a micrometer eyepiece, a beam splitter and double lenses. Each simple pens on the double lenses is a plano-convex lens, and convex faces of the two plano-convex lenses are arranged opposite to each other, and the centers of the two convex faces contact with each other. The micrometer eyepiece is arranged on one side of the double lenses along an axle of the double lenses, the beam splitter is arranged between the double lenses and the micrometer eyepiece. The axle of the micrometer eyepiece and the axle of the double lenses are arranged to form an included angle of 45 degrees, the sodium lamp is arranged on one side perpendicular to the axle of the double lenses, and light beams on the sodium lamp are aligned at the center of one side of the beam splitter towards the double lenses. The double-lens device for measuring the liquid reflective index is used for measuring the liquid reflective index.
Description
Technical field
The utility model relates to a kind of measurement mechanism of liquid refractivity.
Background technology
At present, in the Lab of General Physics of university, refractive index of transparent liquid mostly adopts Abbe refractometer or glancing incidence method to measure, though the Abbe refractometer measurement is simple to operate, measurement range is little, and the refractive index of its measurement can only be corresponding with fixed wave length; On spectrometer, measure with the glancing incidence method, precision is not high, and experiment is regulated complicated, and bright-dark cut is not easy to seek, and measurement data is inaccurate.
The utility model content
The purpose of the utility model is that refractive index of transparent liquid adopts Abbe refractometer or glancing incidence method to measure in the present Physical Experiment in order to solve; Its measuring accuracy is not high, measurement range is little and the problem of complicated operation, and a kind of double lens device of refractive index of transparent liquid is provided.
The utility model is to address the above problem the technical scheme of taking to be:
A kind of double lens device of refractive index of transparent liquid; Its composition comprises sodium vapor lamp, micrometer eyepiece, beam splitter and double lens, and each simple lens on the said double lens is a plano-convex lens, and the convex surface of two plano-convex lenss is oppositely arranged; And the center of two convex surfaces contact; The twin-lens axis in micrometer eyepiece edge is arranged on a side of micrometer eyepiece, and beam splitter is arranged between double lens and the micrometer eyepiece, and beam splitter and twin-lens axis are 45 ° of angle settings; Sodium vapor lamp is arranged on the side with twin-lens axis normal direction, and the light beam on the sodium vapor lamp and beam splitter towards twin-lens one side center over against.
Compared with present technology the utility model has following beneficial effect:
One, the utility model utilizes principle of optical interference, measures liquid refractive index through two on the double lens plano-convex lenss that are oppositely arranged, and measuring accuracy is higher.The utility model can improve the contrast of Newton ring striped, makes phenomenon simple and clear, but the radius-of-curvature of measurement of Lens also refractive index of transparent liquid the time has increased the experiment content of equal thickness interference.Two, the utility model is simple in structure, cost performance is high, easy to operate.
Description of drawings
Fig. 1 is the one-piece construction front view of the utility model.
Embodiment
Embodiment 1:
A kind of double lens device of refractive index of transparent liquid; Its composition comprises sodium vapor lamp 1, micrometer eyepiece 2, beam splitter 3 and double lens 4, and each the simple lens 4-1 on the said double lens 4 is a plano-convex lens, and the convex surface of two plano-convex lenss is oppositely arranged; And the center of two convex surfaces contact; Micrometer eyepiece 2 is arranged on a side of micrometer eyepiece 2 along the axis of double lens 4, and beam splitter 3 is arranged between double lens 4 and the micrometer eyepiece 2, and beam splitter 3 is 45 ° of angle settings with the axis of double lens 4; Sodium vapor lamp 1 is arranged on the side with the axis normal direction of double lens 4, and the light beam on the sodium vapor lamp 1 and beam splitter 3 towards the one side center of double lens 4 over against.The wavelength of sodium vapor lamp 1 is 5893A.
The measuring process of the utility model: before measuring micrometer eyepiece 2, beam splitter 3 and double lens 4 are positioned over respectively on the two-dimension translational base; Again above-mentioned base and sodium vapor lamp 1 are positioned on the shockproof platform of optics; With minim pipette testing liquid is injected twin-lens gap; Newton ring fringe spacing when measurement clearance is air and testing liquid; Can obtain the refractive index of testing liquid, through observing the variation of air film and liquid film width of fringe, vivid demonstration the influence of variations in refractive index to striped.
Claims (1)
1. the double lens device of a refractive index of transparent liquid; Its composition comprises sodium vapor lamp (1), micrometer eyepiece (2), beam splitter (3) and double lens (4); It is characterized in that: each simple lens (4-1) on the said double lens (4) is a plano-convex lens; The convex surface of two plano-convex lenss is oppositely arranged, and the contact of the center of two convex surfaces, and micrometer eyepiece (2) is arranged on a side of micrometer eyepiece (2) along the axis of double lens (4); Beam splitter (3) is arranged between double lens (4) and the micrometer eyepiece (2); The axis of beam splitter (3) and double lens (4) is 45 ° of angle settings, and sodium vapor lamp (1) is arranged on the side with the axis normal direction of double lens (4), and the light beam on the sodium vapor lamp (1) and beam splitter (3) towards the one side center of double lens (4) over against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220102812 CN202494637U (en) | 2012-03-11 | 2012-03-11 | Double-lens device for measuring liquid reflective index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220102812 CN202494637U (en) | 2012-03-11 | 2012-03-11 | Double-lens device for measuring liquid reflective index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494637U true CN202494637U (en) | 2012-10-17 |
Family
ID=47000862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220102812 Expired - Fee Related CN202494637U (en) | 2012-03-11 | 2012-03-11 | Double-lens device for measuring liquid reflective index |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021571A (en) * | 2015-07-22 | 2015-11-04 | 哈尔滨工业大学 | Refractive densitometer optical system |
-
2012
- 2012-03-11 CN CN 201220102812 patent/CN202494637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021571A (en) * | 2015-07-22 | 2015-11-04 | 哈尔滨工业大学 | Refractive densitometer optical system |
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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: 20121017 Termination date: 20130311 |