CN202599831U - Equal-thickness interference experiment device - Google Patents
Equal-thickness interference experiment device Download PDFInfo
- Publication number
- CN202599831U CN202599831U CN 201220260700 CN201220260700U CN202599831U CN 202599831 U CN202599831 U CN 202599831U CN 201220260700 CN201220260700 CN 201220260700 CN 201220260700 U CN201220260700 U CN 201220260700U CN 202599831 U CN202599831 U CN 202599831U
- Authority
- CN
- China
- Prior art keywords
- glass
- flat
- equal
- concave
- plano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an equal-thickness interference experiment device, which consists of flat glass, flat concave glass and a rectangular container. The flat glass is rectangular. The flat glass is stacked on the flat concave glass. The middle part of the flat concave glass is a V-shaped groove. Two equal-height platforms are arranged on two sides of the V-shaped groove and are used for supporting the flat glass. The flat glass and the flat concave glass are transparent optical glass. The equal-thickness interference experiment device has the advantages that the structure is simple, the method is novel, the device is convenient to operate and the refractive index of liquid in all kinds can be determined by using an equal-thickness interference principle.
Description
Technical field
The utility model relates to a kind of Physical Experiment measurement mechanism, is specially a kind of equal thickness interference experiment device.
Background technology
Refractive index is an important physical parameter of reflection optical properties of materials.The measuring method of liquid refractivity has multiple, method commonly used be with a branch of smooth oblique fire to liquid surface, through measuring incident angle and refraction angle, utilize refraction law to calculate liquid refractive index again.This method is often accurate inadequately when taking measurement of an angle, and brings error for the measurement of refractive index.Another kind of Abbe refractive index measuring instrument can reach higher measuring accuracy, but this apparatus structure is complicated, and owing to measure according to total reflection principle, the refractive index of its used prism has limited the scope of its institute's energy measurement.
Summary of the invention
The utility model technical matters to be solved provides a kind of simple in structure, easy to operate, the equal thickness interference experiment device that can accurately measure various liquid refractivities.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
A kind of equal thickness interference experiment device is made up of flat glass, plano-concave glass and rectangular tank, and said flat glass is rectangle, and it is on glass that said flat glass overlays said plano-concave; The middle part of said plano-concave glass is " V " font groove, and both sides respectively have first-class high platform to be used to support said flat glass.
Said flat glass and said plano-concave glass are clear optical glass.
Said flat glass and said plano-concave glass are put into said rectangular tank after superimposed; With the said flat glass of monochromatic collimated beam vertical irradiation, utilize reading microscope to measure the formed interference fringe separation delta of " V " shape air film upper and lower surfaces reflected light x between said flat glass and plano-concave glass.Then, in said rectangular tank, inject testing liquid, make liquid level flood said plano-concave glass, measure the separation delta x ' of interference fringe this moment again.Then according to the equal thickness interference principle, the refractive index of testing liquid is
The utility model is owing to adopt above-mentioned design, and it is simple in structure, and method is novel, and is easy to operate, can accurately measure various liquid refractive index.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is front elevation, vertical view and the side view of the utility model equal thickness interference experiment device.
Fig. 2 is the schematic perspective view of said flat glass of the utility model and plano-concave glass.
Fig. 3 is the shape of interference fringe synoptic diagram that produces when utilizing the said measurement device of the utility model.
1. flat glass among the figure, 2. plano-concave glass, 3. rectangular tank, 4. testing liquid, 5. equal thick interference fringe.
Embodiment
Like Fig. 1, shown in Figure 2, flat glass 1 is rectangle, and flat glass 1 overlays on the plano-concave glass 2 and is placed in the rectangular tank 3; The middle part of plano-concave glass 2 is " V " font groove, and both sides respectively have first-class high platform to be used to support flat glass 1.Flat glass 1 is clear optical glass with plano-concave glass 2.
As shown in Figure 3, with the flat glass 1 of monochromatic collimated beam vertical irradiation, when letting alone what liquid in the rectangular tank 3, measure the average headway Δ x of equal thick interference fringe 5.In rectangular tank 3, inject testing liquid 4; Make liquid level flood plano-concave glass 2; To guarantee that testing liquid is full of " V " connected in star between flat glass 1 and the plano-concave glass 2; Measure the average headway Δ x ' of equal thick interference fringe this moment, obtain the refractive index n of testing liquid by formula
.
Claims (2)
1. an equal thickness interference experiment device is made up of flat glass (1), plano-concave glass (2) and rectangular tank (3), it is characterized in that: said flat glass (1) is rectangle, and flat glass (1) overlays on the plano-concave glass (2); The middle part of said plano-concave glass (2) is " V " font groove, both sides respectively have one be used to support flat glass (1) contoured platform.
2. a kind of equal thickness interference experiment device according to claim 1 is characterized in that: said flat glass (1) and plano-concave glass (2) are clear optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260700 CN202599831U (en) | 2012-06-01 | 2012-06-01 | Equal-thickness interference experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260700 CN202599831U (en) | 2012-06-01 | 2012-06-01 | Equal-thickness interference experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599831U true CN202599831U (en) | 2012-12-12 |
Family
ID=47317360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220260700 Expired - Fee Related CN202599831U (en) | 2012-06-01 | 2012-06-01 | Equal-thickness interference experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741205A (en) * | 2017-11-23 | 2018-02-27 | 北京理工大学 | Plane surface shape error on-line measuring device and method based on model interferometric method |
| CN108007380A (en) * | 2017-11-23 | 2018-05-08 | 北京理工大学 | A kind of surface shape error of spherical surface and radius of curvature error on-line measuring device and method |
| CN111928819A (en) * | 2020-07-31 | 2020-11-13 | 西南交通大学 | Instrument for horizontal detection and horizontal detection method |
-
2012
- 2012-06-01 CN CN 201220260700 patent/CN202599831U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741205A (en) * | 2017-11-23 | 2018-02-27 | 北京理工大学 | Plane surface shape error on-line measuring device and method based on model interferometric method |
| CN108007380A (en) * | 2017-11-23 | 2018-05-08 | 北京理工大学 | A kind of surface shape error of spherical surface and radius of curvature error on-line measuring device and method |
| CN108007380B (en) * | 2017-11-23 | 2019-06-04 | 北京理工大学 | A kind of surface shape error of spherical surface and radius of curvature error on-line measuring device and method |
| CN107741205B (en) * | 2017-11-23 | 2019-06-04 | 北京理工大学 | Plane surface shape error on-line measuring device and method based on template interferometry |
| CN111928819A (en) * | 2020-07-31 | 2020-11-13 | 西南交通大学 | Instrument for horizontal detection and horizontal detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101706425A (en) | Liquid prism refractometer | |
| CN202599831U (en) | Equal-thickness interference experiment device | |
| CN102445406B (en) | Method for measuring liquid phase diffusion coefficient, and apparatus thereof | |
| CN102830091A (en) | Method for measuring liquid refractive index through method of angle of minimum deviation | |
| CN103983610B (en) | Trace quantity liquid refractivity measurement apparatus based on spectral interference and measuring method | |
| CN201141836Y (en) | Liquid refractive index measurement box | |
| CN202256148U (en) | Device for measuring refractive index of transparent liquid | |
| CN103400527A (en) | Direct-reading liquid refracting index measuring instrument and method for measuring liquid refracting index by using direct-reading liquid refracting index measuring instrument | |
| CN201274114Y (en) | Brewster law demonstrator | |
| CN202092956U (en) | Refraction index measurement device for liquid | |
| CN102384898A (en) | Device for measuring refractive index of transparent liquid | |
| CN102830093A (en) | Device for measuring liquid refractive index with equal-thickness interference method | |
| CN102830092A (en) | Liquid refractive index measurement device | |
| CN202956340U (en) | Solution concentration detector based on photonic crystal negative refraction effect | |
| CN102128619B (en) | Optical plumb compensator | |
| CN202083629U (en) | Device for measuring liquid refractive index by adopting minimum deviation angle method | |
| CN204422415U (en) | For the equal-thickness interference experimental device of college physics teaching | |
| CN202083628U (en) | Liquid refractive index measuring device with gratings | |
| CN102830089A (en) | Liquid refractive index measuring device with optical gratings | |
| CN101806731B (en) | Differential solution concentration measuring method and device based on CCD (Charge Coupled Device) and trapezoidal vitreous body | |
| CN202126400U (en) | Hand-held refractometer rubber sleeve | |
| CN202126397U (en) | Prism of handheld refractometer | |
| CN201607216U (en) | Device for simultaneously measuring angle and height of being tested surface | |
| CN202126396U (en) | Lens cone of handheld refraction instrument | |
| CN203519481U (en) | Parallel light accessory |
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: 20121212 Termination date: 20130601 |