CN203643329U - Electronic measuring device for refractive index of prism glass - Google Patents
Electronic measuring device for refractive index of prism glass Download PDFInfo
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- CN203643329U CN203643329U CN201320729331.XU CN201320729331U CN203643329U CN 203643329 U CN203643329 U CN 203643329U CN 201320729331 U CN201320729331 U CN 201320729331U CN 203643329 U CN203643329 U CN 203643329U
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- prism
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- arc orbit
- chip microcomputer
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Abstract
The utility model discloses an electronic measuring device for the refractive index of prism glass. The electronic measuring device comprises a monochromatic parallel light source (1), a prism table (2), a prism (3), a first arc track (4), a second arc track (5), a first lead (6), a resistance wire (7), a telescope (8), a metal ring (9), a second lead (10), a third lead (11), an A/D (Analog to Digital) converter (12), a power supply (13), a single-chip microcomputer (14) and an LCD (15). When the electronic measuring device is used, the output of the second lead (10) is sent into the A/D converter (12), the output of the A/D converter (12) is sent into the single-chip microcomputer (14), and a processing result is sent by the single-chip microcomputer (14) into the LCD (15) to be displayed.
Description
Technical field
The utility model belongs to physical measurement field, relates to a kind of electronic measuring device of prism glass refractive index.
Background technology
Monochromatic light, the light of single-frequency (or wavelength).Can not produce dispersion.Be not monochromatic light truly by red every kind of coloured light in purple seven-colour-light, they have quite wide frequency (or wavelength) scope, if wavelength is that light in 0.77～0.622 micrometer range all claims ruddiness, and the light wave monochromaticity of helium-neon laser radiation is best, wavelength is 0.6328 micron, can think a kind of monochromatic light.
When light is injected medium generation refraction from vacuum, the ratio of incident angle sine value and refraction angle sine value is called " absolute index of refraction " of medium, is called for short " refractive index ".It represents that light is in the time of Propagation, a kind of feature of medium to light.The refractive index of material is higher, makes the ability of incident light generation refraction stronger.The refractive index of medium, conventionally by measuring, has many measuring methods.To solid dielectric, conventional the method for minimum deviation angle or autocollimation method, or utilize the principle of equal thickness interference to measure by Michelson interferometer; Liquid medium is commonly used critical angle method (Abbe refractometer); Gas medium is by the higher interferometric method of precision (rayleigh interferometer).
A/D converter, or be called for short ADC, typically refer to the electronic component that is digital signal by analog-signal transitions.Common analog to digital converter is the digital signal that an input voltage signal is converted to an output.Because digital signal itself does not have practical significance, only represent a relative size.Therefore any one analog to digital converter all need one with reference to analog quantity the standard as conversion, more common normative reference is maximum convertible signal magnitude.The digital quantity of output represents the size of input signal with respect to reference signal.
One chip microcomputer is called for short single-chip microcomputer, is typical embedded microcontroller (Microcontroller Unit), and the abbreviation MCU of conventional English alphabet represents single-chip microcomputer, and it is to be used in industrial control field the earliest.Single-chip microcomputer is penetrated into the every field of our life at present, is almost difficult to find which field there is no the trace of single-chip microcomputer.Single-chip microcomputer moves by program, and can revise.Realize different functions by different programs, by program, can control easily LED lamp, charactron and light the rotating speed of speed and motor with single-chip microcomputer, can produce easily the row operation of going forward side by side of various random digits.Can realize the high intelligence of product by program, high-level efficiency, and high reliability.
LCD liquid crystal display is the abbreviation of Liquid Crystal Display, the structure of LCD is to place liquid crystal in the middle of two parallel glass, two have the tiny electric wire of many vertical and levels in the middle of sheet glass, whether seeing through switches on controls shaft-like crystal molecular changes direction, and light refraction is out produced to picture.
Be the prism to be measured that A, refractive index are n for a drift angle, it is placed on to (n1=n2=1) in air.In the time that the incident angle of prism first surface equals the refraction angle at second surface, angle of deviation reaches minimum value δ min, measures δ min and A with angular instrument, just can calculate refractive index n.The method of this measurement refractive index is the method for minimum deviation angle.
Summary of the invention
While surveying refractive index with the method for minimum deviation angle, the measurements and calculations of angle are cumbersome, the purpose of this utility model is to design the electronic measuring device of a kind of simple in structure, easy to use, dependable performance, cheap prism glass refractive index, can make the method for minimum deviation angle survey refractive index time, the measurements and calculations of angle are carried out automatically.
For achieving the above object, the utility model comprises: monochromatic collimated beam source (1), prism platform (2), prism (3), the first arc orbit (4), the second arc orbit (5), the first wire (6), resistance wire (7), telescope (8), becket (9), the second wire (10), privates (11), A/D converter (12), power supply (13), single-chip microcomputer (14), LCD liquid crystal display (15), it is characterized in that: prism platform (2) can freely be rotated, prism (3) is positioned over prism platform (2) center above, the monochromatic collimated beam that send in monochromatic collimated beam source (1) can be radiated on the side surface of prism (3), the center of curvature of the first arc orbit (4) and the second arc orbit (5) all in prism platform (2) in the heart, the radius of the first arc orbit (4) is less than the radius of the second arc orbit (5), resistance wire (7) embeds the second arc orbit (5) above and has the volume of half to expose, telescope (8) is placed on the first arc orbit (4) and the second arc orbit (5) above also can be around prism platform (2) center rotating, becket (9) is enclosed within on telescope (8), becket (9) be positioned at resistance wire (7) above and with resistance wire (7) close contact, draw the first wire (6) from one end of resistance wire (7), above becket (9), weld the second wire (10), draw privates (11) from the other end of resistance wire (7), the positive pole of power supply (13) connects privates (11), the negative pole of power supply (13) connects the first wire (6), A/D converter (12) is sent in the output of the second wire (10), power supply (13) is A/D converter (12) simultaneously, single-chip microcomputer (14) provides electric energy, single-chip microcomputer (14) is sent in the output of A/D converter (12), single-chip microcomputer (14) is sent result into LCD liquid crystal display (15) and is shown.
Brief description of the drawings
The electronic measuring device physical construction schematic diagram of Fig. 1 prism glass refractive index;
The electronic measuring device signal of Fig. 2 prism glass refractive index is processed block scheme;
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is illustrated.
Referring to the electronic measuring device physical construction schematic diagram of Fig. 1 prism glass refractive index, the electronic measuring device mechanical part of prism glass refractive index is by monochromatic collimated beam source (1), prism platform (2), prism (3), the first arc orbit (4), the second arc orbit (5), the first wire (6), resistance wire (7), telescope (8), becket (9), the second wire (10), privates (11) composition, prism platform (2) can freely be rotated, prism (3) is positioned over prism platform (2) center above, the monochromatic collimated beam that send in monochromatic collimated beam source (1) can be radiated on the side surface of prism (3), the center of curvature of the first arc orbit (4) and the second arc orbit (5) all in prism platform (2) in the heart, the radius of the first arc orbit (4) is less than the radius of the second arc orbit (5), resistance wire (7) embeds the second arc orbit (5) above and has the volume of half to expose, telescope (8) is placed on the first arc orbit (4) and the second arc orbit (5) above also can be around prism platform (2) center rotating, becket (9) is enclosed within on telescope (8), becket (9) be positioned at resistance wire (7) above and with resistance wire (7) close contact, draw the first wire (6) from one end of resistance wire (7), above becket (9), weld the second wire (10), draw privates (11) from the other end of resistance wire (7).
Electronic measuring device signal referring to Fig. 2 prism glass refractive index is processed block scheme, the electronic measuring device signal processing of prism glass refractive index is by A/D converter (12), power supply (13), single-chip microcomputer (14), LCD liquid crystal display (15) composition, the positive pole of power supply (13) connects privates (11), the negative pole of power supply (13) connects the first wire (6), A/D converter (12) is sent in the output of the second wire (10), power supply (13) is A/D converter (12) simultaneously, single-chip microcomputer (14) provides electric energy, single-chip microcomputer (14) is sent in the output of A/D converter (12), single-chip microcomputer (14) is sent result into LCD liquid crystal display (15) and is shown.
The radian number certain (being assumed to quadrant) of the second arc orbit (5), on it, resistance wire institute making alive size is E, the output voltage of establishing the second wire (10) is U, has: angle of minimum deviation
so the output voltage values of the second wire (10) can represent angle of minimum deviation, A/D converter (12) is sent in the output of the second wire (10), single-chip microcomputer (14) is sent in the output of A/D converter (12), prism vertex angle A is fixed value, A value can deposit in single-chip microcomputer (14) in advance, and single-chip microcomputer (14) can calculate prism glass refractive index
single-chip microcomputer (14) is sent result of calculation into LCD liquid crystal display (15) and is shown.
Claims (1)
1. the electronic measuring device of a prism glass refractive index, it is characterized in that: the electronic measuring device of prism glass refractive index is by monochromatic collimated beam source (1), prism platform (2), prism (3), the first arc orbit (4), the second arc orbit (5), the first wire (6), resistance wire (7), telescope (8), becket (9), the second wire (10), privates (11), A/D converter (12), power supply (13), single-chip microcomputer (14), LCD liquid crystal display (15) composition, prism platform (2) can freely be rotated, prism (3) is positioned over prism platform (2) center above, the monochromatic collimated beam that send in monochromatic collimated beam source (1) can be radiated on the side surface of prism (3), the center of curvature of the first arc orbit (4) and the second arc orbit (5) all in prism platform (2) in the heart, the radius of the first arc orbit (4) is less than the radius of the second arc orbit (5), resistance wire (7) embeds the second arc orbit (5) above and has the volume of half to expose, telescope (8) is placed on the first arc orbit (4) and the second arc orbit (5) above also can be around prism platform (2) center rotating, becket (9) is enclosed within on telescope (8), becket (9) be positioned at resistance wire (7) above and with resistance wire (7) close contact, draw the first wire (6) from one end of resistance wire (7), above becket (9), weld the second wire (10), draw privates (11) from the other end of resistance wire (7), the positive pole of power supply (13) connects privates (11), the negative pole of power supply (13) connects the first wire (6), A/D converter (12) is sent in the output of the second wire (10), power supply (13) is A/D converter (12) simultaneously, single-chip microcomputer (14) provides electric energy, single-chip microcomputer (14) is sent in the output of A/D converter (12), single-chip microcomputer (14) is sent result into LCD liquid crystal display (15) and is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729331.XU CN203643329U (en) | 2013-11-11 | 2013-11-11 | Electronic measuring device for refractive index of prism glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729331.XU CN203643329U (en) | 2013-11-11 | 2013-11-11 | Electronic measuring device for refractive index of prism glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643329U true CN203643329U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320729331.XU Expired - Fee Related CN203643329U (en) | 2013-11-11 | 2013-11-11 | Electronic measuring device for refractive index of prism glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643329U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359860A (en) * | 2014-12-12 | 2015-02-18 | 长春理工大学 | Infrared glass refractive index photoelectric detection method based on measurement apex angle and incidence angle |
| CN106979935A (en) * | 2017-03-14 | 2017-07-25 | 浙江大学 | A kind of contactless glass block refractive index measuring instrument |
| CN110749423A (en) * | 2019-09-23 | 2020-02-04 | 商丘师范学院 | Method and system for measuring refractive index of prism |
-
2013
- 2013-11-11 CN CN201320729331.XU patent/CN203643329U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359860A (en) * | 2014-12-12 | 2015-02-18 | 长春理工大学 | Infrared glass refractive index photoelectric detection method based on measurement apex angle and incidence angle |
| CN106979935A (en) * | 2017-03-14 | 2017-07-25 | 浙江大学 | A kind of contactless glass block refractive index measuring instrument |
| CN106979935B (en) * | 2017-03-14 | 2019-07-09 | 浙江大学 | A kind of contactless glass block refractive index measuring instrument |
| CN110749423A (en) * | 2019-09-23 | 2020-02-04 | 商丘师范学院 | Method and system for measuring refractive index of prism |
| CN110749423B (en) * | 2019-09-23 | 2021-08-20 | 商丘师范学院 | Method and system for measuring refractive index of prism |
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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: 20140611 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |