CN202083629U - Device for measuring liquid refractive index by adopting minimum deviation angle method - Google Patents
Device for measuring liquid refractive index by adopting minimum deviation angle method Download PDFInfo
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- CN202083629U CN202083629U CN2011202041671U CN201120204167U CN202083629U CN 202083629 U CN202083629 U CN 202083629U CN 2011202041671 U CN2011202041671 U CN 2011202041671U CN 201120204167 U CN201120204167 U CN 201120204167U CN 202083629 U CN202083629 U CN 202083629U
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Abstract
The utility model relates to a device for measuring liquid refractive index by adopting a minimum deviation angle method, which consists of a hollow container made of transparent optical flat glass, and a container cover matched with the hollow container. The hollow container is in an isosceles triangular prism shape, and the matched container cover is in an isosceles triangle; a through hole is arranged in the container cover, and a through hole plug is matched with the through hole; the hollow container is placed on a regulated spectrometer stage, and liquid to be measured is poured in the container; monochromic parallel light emitted from a parallel light tube is irradiated on one side surface of a vertex angle of the container, and light rays emitted from the other surface can be observed by a telescope. The spectrometer stage is rotated to change an incidence angle of the light rays so as to measure the minimum deviation angle of the emitted light rays, namely, the refractive index of the liquid to be measured can be obtained. The device is simple in structure and convenient in operation and can accurately measure the refractive indexes of various liquids.
Description
Technical field
The utility model relates to a kind of Physical Experiment measurement mechanism, and especially a kind of minimum deviation horn cupping is measured the liquid refractivity device.
Background technology
Refractive index is a kind of important parameter of characterized medium optical properties of materials, in production and scientific research department, often needs to measure the refractive index of object.Wherein the assay method of liquid refractivity has multiplely, and as with Abbe refractometer determination method, glancing incidence method etc., measuring method respectively has relative merits.The utility model provides a kind of device that utilizes spectrometer accurately to measure liquid refractivity.
Summary of the invention
Technical problem to be solved in the utility model is a kind of simple in structure, easy to operate, the experimental provision that can accurately measure various liquid refractivities of design.
In order to solve the problems of the technologies described above, the utility model provides a kind of minimum deviation horn cupping to measure the liquid refractivity device, this device by a hollow container made from the flat glass of transparent optical and with it complete container cover and form.Hollow container is that isosceles are triangular prism shaped, and the complete container lid is isosceles triangle; One through hole is arranged on the container cover, be used in container, injecting instruments such as testing liquid or insertion thermometer; Through hole is furnished with a through hole plug.
During actual measurement, hollow container is placed on the spectrometer objective table of adjusting, in container, injects testing liquid.The light that penetrates from the another side is observed in a side of the monochromatic collimated beam exposure cage drift angle that parallel light tube sends by telescope.Slowly rotate the spectrometer objective table, change the incident angle of light, then the angle of deviation of emergent ray changes thereupon.Utilize the angle of minimum deviation of spectrometer, measure emergent ray, then according to the refraction law of light path and light, the refractive index that can try to achieve testing liquid is
A is the drift angle of isosceles triangular prism in the formula, δ
MinAngle of minimum deviation for emergent ray.
The utility model is owing to adopt above-mentioned design, and it is simple in structure, and is easy to operate, can accurately measure various liquid refractive index.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural drawing that a kind of minimum deviation horn cupping described in the utility model is measured the liquid refractivity device.
Fig. 2 utilizes a kind of minimum deviation horn cupping described in the utility model to measure the synoptic diagram of liquid refractivity measurement device liquid refractivity.
1. hollow containers among the figure, 2. container cover is 3. handled knob, 4. through hole, 5. through hole plug, 6. spectrometer objective table, 7. parallel light tube, 8. telescope.
Embodiment
As shown in Figure 1, hollow container 1 is that isosceles are triangular prism shaped, and drift angle is A, is made by the flat glass of transparent optical; Complete container lid 2 is an isosceles triangle, and 3 and one through hole 4 of handling knob is arranged on the container cover 2; Through hole 4 is furnished with through hole plug 5, can insert instruments such as thermometer.When measuring the liquid of pungency liquid, toxic liquid or volatilization easily, container cover 2 can be covered on container 1, in container 1, inject testing liquid by through hole 4, clog through hole 4 with through hole plug 5 then.
As shown in Figure 2, hollow container 1 is placed on the spectrometer objective table of adjusting 6, in container 1, injects testing liquid.The light that penetrates from the another side is observed by telescope 8 in the side of the monochromatic collimated beam exposure cage 1 drift angle A that parallel light tube sends.Slowly rotate spectrometer objective table 6, change the incident angle of light, this moment, the angle of deviation δ of emergent ray changed thereupon.Utilize the angle of minimum deviation δ min of spectrometer, measure emergent ray, the substitution following formula, can try to achieve the refractive index n (derivation of equation slightly) of testing liquid:
Claims (2)
1. a minimum deviation horn cupping is measured the liquid refractivity device, is made up of hollow container made from the flat glass of transparent optical (1) and supporting with it container cover (2), it is characterized in that: hollow container (1) is triangular prism shaped for isosceles.
2. a kind of minimum deviation horn cupping according to claim 1 is measured the liquid refractivity device, it is characterized in that: container cover (2) has a through hole (4) for isosceles triangle on it, through hole (4) is furnished with through hole plug (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202041671U CN202083629U (en) | 2011-06-16 | 2011-06-16 | Device for measuring liquid refractive index by adopting minimum deviation angle method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202041671U CN202083629U (en) | 2011-06-16 | 2011-06-16 | Device for measuring liquid refractive index by adopting minimum deviation angle method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083629U true CN202083629U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202041671U Expired - Fee Related CN202083629U (en) | 2011-06-16 | 2011-06-16 | Device for measuring liquid refractive index by adopting minimum deviation angle method |
Country Status (1)
| Country | Link |
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| CN (1) | CN202083629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900660A (en) * | 2017-12-08 | 2019-06-18 | 长光华大基因测序设备（长春）有限公司 | A kind of method and apparatus measuring liquid refractivity |
| CN113607092A (en) * | 2021-07-21 | 2021-11-05 | 中国科学技术大学 | Light small angle measuring method and system |
-
2011
- 2011-06-16 CN CN2011202041671U patent/CN202083629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900660A (en) * | 2017-12-08 | 2019-06-18 | 长光华大基因测序设备（长春）有限公司 | A kind of method and apparatus measuring liquid refractivity |
| CN113607092A (en) * | 2021-07-21 | 2021-11-05 | 中国科学技术大学 | Light small angle measuring method and 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: 20111221 Termination date: 20120616 |