CN202736366U - Transparent liquid refractive index measuring instrument - Google Patents
Transparent liquid refractive index measuring instrument Download PDFInfo
- Publication number
- CN202736366U CN202736366U CN 201220400838 CN201220400838U CN202736366U CN 202736366 U CN202736366 U CN 202736366U CN 201220400838 CN201220400838 CN 201220400838 CN 201220400838 U CN201220400838 U CN 201220400838U CN 202736366 U CN202736366 U CN 202736366U
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- China
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- light pointer
- refractive index
- rotating shaft
- measuring instrument
- index measuring
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Abstract
The utility model relates to a teaching experiment instrument, in particular to a transparent liquid refractive index measuring instrument which is used in physics teaching and experiments. The transparent liquid refractive index measuring instrument comprises a support which erects on a base and a protractor, a slide rail is transversely arranged at the upper end of the support, and the upper end of a heavy hammer line which slides on the slide rail is hinged with the slide rail; a rotating shaft is mounted in a central position of the support, a sewing needle is inserted into a shaft center of the rotating shaft, and central positions of the incident light pointer and the refracted light pointer are respectively connected with the rotating shaft in a hinged mode; one end of the incident light pointer is fixed with a laser device, a fine line is led out from an emission port position of the laser device, the fine line is led to the sewing needle along the incident light pointer and penetrates through a needle hole of the sewing needle, and then is fixed at the tail end of the refracted light pointer along the refracted light pointer. The center of the protractor is overlapped with the rotating shaft. The transparent liquid refractive index measuring instrument presents a track of a laser through the fine line, a refraction phenomenon of liquid can be observed conveniently, by means of the law of refraction and using a ruler and compass, refractive index of transparent liquid can be measured, the operation is convenient, the structure is simple, intuitive performance is strong, and the transparent liquid refractive index measuring instrument can be conveniently applied to the experiments and teaching.
Description
Technical field
The utility model relates to a kind of teaching and experiment equipment, the transparency liquid refractive index measuring instrument of specifically using in a kind of physics teaching and the experiment.
Background technology
At present, do not have in the physics teaching can qualitative demonstration liquid refraction effect, experimental apparatus that again can quantitative measurment transparency liquid refractive index.During teachers ' teaching, can only use language performance, because the student can not visual experiment, make troubles to teaching.
Summary of the invention
Goal of the invention of the present utility model is the defective for prior art, provides a kind of simple in structure, easy to use, successful can qualitative demonstration liquid refraction effect, transparency liquid refractive index measuring instrument that again can quantitative measurment transparency liquid refractive index.
Realize above-mentioned purpose by the following technical solutions:
A kind of transparency liquid refractive index measuring instrument comprises the support that stands on the base, protractor, and the upper end of described support is horizontally arranged with slideway, and the upper end of the weight line that slides at slideway is hinged on the slideway; The centre of support is equipped with rotating shaft, and the axle center of this rotating shaft is inserted with sewing needle, and the centre of incident light pointer, refract light pointer is hinged with rotating shaft respectively; One end of incident light pointer is fixed with laser instrument, and the emission port place of laser instrument leads to fine rule, and this fine rule passes from the pin hole of sewing-needle along the incident light pointer to sewing-needle, is fixed on the end of refract light pointer along the refract light pointer again; The center of described protractor overlaps with rotating shaft.
As preferred version, described incident light pointer, refract light pointer, protractor rotate around the axis centered by rotating shaft respectively.
As preferred version, the lower end of described incident light pointer is with scale.
As preferred version, the lower end of described refract light pointer is with scale.
As preferred version, the degree of depth of sewing-needle insertion rotating shaft core is adjustable, and the laser energy that laser instrument is sent is walked along fine rule, and fine rule can demonstrate light path.
As preferred version, described support is rectangular configuration.
Adopt such scheme, compared with prior art, the utility model has remedied that do not have can qualitative demonstration refraction effect, deficiency that again can quantitative measurment transparency liquid refractive index instrument, this instrument presents the track of laser with fine rule, be convenient to observe the refraction effect of liquid, utilize two kinds of methods of refraction law and ruler, measure the transparency liquid refractive index, easy to operate, simple in structure, intuitive is strong, is convenient to be applied in experiment and the teaching.
Description of drawings
Fig. 1 is one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the johning knot composition of the utility model fine rule.
Among the figure, support 1, rotating shaft 2, incident pointer 3, refraction pointer 4, weight line 5, protractor 6, laser instrument 7, slideway 8, fine rule 9, sewing-needle 10.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
Its composition comprises that light path presents part, refractometry part.Light path presents part and mainly is comprised of laser instrument, incident light pointer, fine rule, refract light pointer, rotating shaft, the lower end of refract light pointer is with scale, this rotating shaft is arranged on the centre of support, described refractometry part mainly is comprised of slideway, the plumb line, protractor and the refract light pointer that slide at slideway, and described installation of slide track is in the upper end of support.
Referring to accompanying drawing 1-2, this example is a kind of transparency liquid refractive index measuring instrument, and the measuring instrument of this transparency liquid refractive index presents part, refractometry part, support 1 by light path and forms.
See Fig. 1, support 1 is rectangular configuration, and the upper end of support 1 is horizontally arranged with slideway 8, and the upper end of the weight line 5 that slides at slideway 8 is hinged on the slideway.Rotating shaft 2 is installed in the centre of support 1, and base is arranged at the bottom of support 1, and support 1 is used base support.
See Fig. 1, Fig. 2, light path present part by incident light pointer 3, be with graduated refract light pointer 4(simultaneously also as the refractometry part), rotating shaft 2 forms.The axle center of rotating shaft 2 is inserted with sewing needle 10, and sewing-needle 10 is perpendicular with rotating shaft core, overlaps with fine rule 9 in order to ensure laser beam, and the degree of depth of inserting rotating shaft core is adjustable, and the degree of depth of insertion rotating shaft core and laser instrument transmitting aperture are in same perpendicular.One end of incident light pointer 3 is fixed with laser instrument 7, a fine rule 9 is drawn at the emission port place of laser instrument 7, see Fig. 2, fine rule 9 one ends from the light outlets of laser instrument 3 out, along incident light pointer 3 to rotating shaft 2, pass the pin hole of the sewing-needle 10 of rotating shaft 2 centers, be fixed on again the end of refract light pointer 4 along refract light pointer 4.
Refractometry part is by the weight line 5 that slides at slideway 8, the bottom of rotary protractor 6, incident light pointer 3 and the bottom of refract light pointer 4 form centered by rotating shaft 2.The upper end of weight line 5 is hinged on the slideway 8, and the upper end of weight line 5 can horizontally slip at slideway 8.The bottom of incident light pointer 3 is with scale.The center of protractor 6 overlaps with rotating shaft.
Adjust sewing-needle 10 and insert the degree of depth of rotating shaft 2 and the position of refract light pointer 4, the laser beam that laser instrument 7 is sent is advanced along fine rule 9, by the diffuse reflection of fine rule 9, presents the track of laser beam.Light path presents the refraction effect that part can qualitative demonstration light.
During use, measuring instrument is placed transparency liquid, regulate liquid depth, make the sewing-needle 10 at place, rotating shaft 2 places at liquid surface.Amount of spin hornwork 6 makes the zero graduation line of protractor 6 overlap with liquid level.
The refraction effect of qualitative demonstration light.
Quantitative measurment transparency liquid refractive index.
1. utilize refraction law to measure refractive index: open laser instrument 7, adjust incident light pointer 3 and refract light pointer 4, laser beam is overlapped with fine rule 9, throughput hornwork 6 directly reads incident angle i and refraction angle r, brings formula into
, calculate refractive index n.Change incident light pointer 3 and refract light pointer 4, guarantee that laser beam overlaps with fine rule 9, can repeatedly measure and average.
2. utilize the ruler method directly to read refractive index.Open laser instrument, adjust incident light pointer 3 and refract light pointer 4, laser beam is overlapped with fine rule 9, regulate weight 5, make plumb line just pass through the scale mark 1 of incident light pointer 3, read the scale that plumb line 5 overlaps with refract light pointer 4, this scale is this liquid refractivity.Repeatedly measure and to average.
Get certain-length downwards as unit length 1 from rotating shaft 2 centers, be marked on the Lower Half of incident light pointer 3, put on 1.0,1.1,1.2 with identical long measure in refract light pointer 4 Lower Halves ... but the centre is indexing also, to increase measuring accuracy.
Claims (6)
1. a transparency liquid refractive index measuring instrument comprises the support that is beneficial on the base, and protractor is characterized in that, the upper end of described support is horizontally arranged with slideway, and an end of the weight line that slides at slideway is hinged on the slideway; The centre of support is equipped with rotating shaft, and the centre of incident light pointer, refract light pointer is hinged with rotating shaft respectively, and the axle center of this rotating shaft is inserted with sewing needle; One end of incident light pointer is connected with laser instrument, and the emission port place of laser instrument leads to fine rule, and this fine rule passes from the pin hole of sewing-needle along the incident light pointer to sewing-needle, is fixed on the end of refract light pointer along the refract light pointer again; The center of described protractor overlaps with rotating shaft.
2. transparency liquid refractive index measuring instrument according to claim 1 is characterized in that, described incident light pointer, refract light pointer, protractor rotate around the axis centered by rotating shaft respectively.
3. transparency liquid refractive index measuring instrument according to claim 1 is characterized in that, the lower end of described incident light pointer is with scale.
4. transparency liquid refractive index measuring instrument according to claim 1 is characterized in that, on the described refract light pointer with scale.
5. transparency liquid refractive index measuring instrument according to claim 1 is characterized in that, the degree of depth of sewing-needle insertion rotating shaft core is adjustable.
6. transparency liquid refractive index measuring instrument according to claim 1 is characterized in that, described support is rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400838 CN202736366U (en) | 2012-08-14 | 2012-08-14 | Transparent liquid refractive index measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400838 CN202736366U (en) | 2012-08-14 | 2012-08-14 | Transparent liquid refractive index measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736366U true CN202736366U (en) | 2013-02-13 |
Family
ID=47662044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400838 Expired - Fee Related CN202736366U (en) | 2012-08-14 | 2012-08-14 | Transparent liquid refractive index measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736366U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400527A (en) * | 2013-08-19 | 2013-11-20 | 唐山师范学院 | Direct-reading liquid refracting index measuring instrument and method for measuring liquid refracting index by using direct-reading liquid refracting index measuring instrument |
| CN103868886A (en) * | 2013-12-23 | 2014-06-18 | 危舒宏 | Refractive index determinator |
| CN105225588A (en) * | 2015-10-31 | 2016-01-06 | 唐山师范学院 | Liquid refracting imaging experimental instrument |
| CN106770036A (en) * | 2017-01-11 | 2017-05-31 | 裴钊 | Refractive index measuring instrument |
| CN109147519A (en) * | 2016-07-30 | 2019-01-04 | 朱晶晶 | Light reflection teaching demonstration device |
-
2012
- 2012-08-14 CN CN 201220400838 patent/CN202736366U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400527A (en) * | 2013-08-19 | 2013-11-20 | 唐山师范学院 | Direct-reading liquid refracting index measuring instrument and method for measuring liquid refracting index by using direct-reading liquid refracting index measuring instrument |
| CN103868886A (en) * | 2013-12-23 | 2014-06-18 | 危舒宏 | Refractive index determinator |
| CN105225588A (en) * | 2015-10-31 | 2016-01-06 | 唐山师范学院 | Liquid refracting imaging experimental instrument |
| CN109147519A (en) * | 2016-07-30 | 2019-01-04 | 朱晶晶 | Light reflection teaching demonstration device |
| CN109192024A (en) * | 2016-07-30 | 2019-01-11 | 朱晶晶 | A kind of reflection teaching demonstration device of light |
| CN106770036A (en) * | 2017-01-11 | 2017-05-31 | 裴钊 | Refractive index measuring instrument |
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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: 20130213 Termination date: 20150814 |
|
| EXPY | Termination of patent right or utility model |