CN213239210U

CN213239210U - Optical filter-based optical wavelength measuring device

Info

Publication number: CN213239210U
Application number: CN202022658738.0U
Authority: CN
Inventors: 李婕; 许鸿溢; 吴圣洋; 石镜澄; 余巍; 李家硕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-05-18
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses an optical filter-based optical wavelength measuring device, which belongs to the technical field of optical wavelength measurement, and comprises a shell and a chassis, wherein the upper surface of the chassis is provided with the shell, and a box cover is arranged in a chute arranged on the upper surface of the shell in a sliding way; the utility model discloses in, through setting up the shell, the carousel, light intensity meter and light filter, insert the inside to the shell from the inside of pipe with the laser pen, the light that the laser pen sent is through catching light device with bright reflection to the carousel on, rotate the carousel, measure the light intensity through the laser that does not shelter from, display through observing the light intensity meter, note down the registration of display screen this moment, rotate the carousel again, measure the light intensity through the laser of two light filters, note down the registration of display screen this moment, calculate the transmittance, obtain the wavelength, and is convenient and fast, solve and because the inconvenient self-measurement's of instrument reason problem, and easy operation, make things convenient for the student to measure the wavelength of light once more in the future, and is convenient to carry, can measure at any time.

Description

Optical filter-based optical wavelength measuring device

Technical Field

The utility model belongs to the technical field of the optical wavelength measurement, especially, relate to a based on light filter optical wavelength measuring device.

Background

The wavelength of light is of great importance in both the theoretical research field and the real life, for example, optical communication implemented by using optical fiber is far superior to other communication modes in both propagation speed and information carrying capacity. Therefore, measuring the wavelength of light has become a fundamental experiment in physics experiments for physics of physics students.

At present, most measurement methods used in laboratories are double slit interferometry for measuring laser wavelength, Michelson interferometer for measuring continuous laser wavelength, Newton ring measurement for laser wavelength, optical wedge interferometry for measuring laser wavelength and the like, however, the instrument volume required for completing the experiments is large, the time for completing the measurement is long, the requirement on the environment is high during the measurement, certain operation difficulty exists, the methods consume time when students need to measure the wavelength of light again in the future after completing teaching targets, and the measurement is inconvenient for self-measurement due to the reason of the instrument, when the existing optical wavelength measurement device is used for measurement, when the precision of the measurement instrument is measured, because a laser pen is powered by a dry battery, the output power is unstable, the measurement of light intensity is influenced, the measurement result error is large, and when the measurement is carried out, because the laser pen is loosened, the measurement accuracy is influenced, the laser pen is held up to the user's hand of needs when measuring usually, and is comparatively inconvenient, and the light intensity meter does not have the receiver, and is comparatively inconvenient when the reading, also can influence measuring precision owing to the mistake bumps the black box when using.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the prior measuring method used in laboratories is a double-slit interference method for measuring laser wavelength, a Michelson interferometer for measuring continuous laser wavelength, Newton ring for measuring laser wavelength, optical wedge interference for measuring laser wavelength and the like, however, the instrument required for completing the experiments has large volume, long measuring time, high requirement on environment during measurement and certain operation difficulty, the methods consume time when students need to measure the wavelength of light again in the future after completing teaching targets, and the measurement is inconvenient for self-measurement due to instrument reasons, the prior optical wavelength measuring device has the defects that when the measuring instrument is used for measuring, the laser pen is powered by a dry battery during precision, the output power is unstable, the measurement of light intensity is influenced, the measuring result has large error, and the laser pen is possible to loosen during measurement, there is influence measuring accuracy, and it is comparatively inconvenient to need the user to hand the laser pen when measuring usually, and the light intensity meter does not have the receiver, and is comparatively inconvenient when the reading, bumps the problem that black box also can influence measuring precision owing to the mistake when using, and the optical filter based on optical wavelength measuring device who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a based on light filter optical wavelength measuring device, includes shell and chassis, the upper surface on chassis is provided with the shell, slidable mounting has the case lid in the spout that the upper surface of shell was seted up, the lateral wall fixed mounting of case lid has the sealing strip, it installs the axis of rotation to plant in the outer wall of shell, the inside fixed mounting that the one end of axis of rotation passed and extended to the shell has the carousel, through-hole and draw-in groove have been seted up to the inside of carousel, the inside of draw-in groove is equipped with the light filter, the inside of shell is provided with catches the light device, and the pipe has.

As a further description of the above technical solution:

the movable block is slidably mounted on the inner wall of the fixed shell, the outer shell is made of black opaque materials, the fixed shell is fixedly mounted on the upper surface of the base plate, the movable shaft is mounted inside the fixed shell in an inserted mode, and the movable block is fixedly mounted at one end of the movable shaft.

As a further description of the above technical solution:

the movable block is slidably mounted on the inner wall of the fixed shell, an extrusion rubber mat is fixedly mounted on the side wall of the movable block, a first spring is sleeved on the outer surface of the movable shaft, one end of the first spring is fixedly connected with the inner wall of the fixed shell, and the other end of the first spring is fixedly connected with the side wall of the movable block.

As a further description of the above technical solution:

the outer fixed surface of shell installs the installation shell, the inside of installation shell is planted and is installed T type axle, the one end fixed mounting of T type axle has semicircle extruded article, the surface mounting of semicircle extruded article has the friction pad.

As a further description of the above technical solution:

the outer surface cover of T type axle is equipped with the second spring, the one end of second spring and the inner wall fixed connection of installation shell, the other end of second spring and the outer fixed surface of T type axle are connected.

As a further description of the above technical solution:

the lateral wall fixed mounting of shell has the first shell that holds, the inside of the first shell that holds is provided with constant voltage power supply, the lateral wall fixed mounting of shell has the second to hold the shell, the inside that the second held the shell is provided with the light intensity meter.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, through setting up the shell, the carousel, the light intensity meter and the light filter, insert the laser pen from the inside of pipe to the inside of shell, supply power for the laser pen through constant voltage power supply, close the case lid, make the inside of shell be in a dark state, the light that the laser pen sent reflects the light to the carousel through catching the light device, rotate the carousel, measure the light intensity of through-hole laser that passes through not sheltering from, through the display of observing the light intensity meter, note down the number of display screen at this moment, rotate the carousel again, measure the light intensity of laser that passes through two light filters, note down the number of display screen at this moment, calculate the transmittance, and compare with the light filter characteristic curve before, obtain the wavelength, and is convenient and fast, and solved and because the inconvenient problem of the measurement by oneself of instrument reason, the operation is simple, make things convenient for the student to need to measure the wavelength of light again, is convenient to carry and can carry out measurement at any time.

2. In the utility model, by arranging the semicircular extrusion piece, the second spring, the fixed shell and the moving block, when the laser pen is inserted into the shell through the round pipe, the T-shaped shaft is driven to move due to the elasticity of the second spring, and the semicircular extrusion piece and the friction pad are driven to contact and extrude with the laser pen, thereby avoiding the problem that the laser pen needs to be held by a user due to the vibration of the laser pen when measuring, the measurement is convenient, after the measurement is finished, the friction pad is separated from the laser pen by pulling the T-shaped shaft to be contacted, the laser pen is taken out, by arranging the stabilized voltage power supply, the problem that the laser pen is powered by a dry battery is solved, the output power is unstable, the measurement of the light intensity is influenced, the error of the measurement result is larger, the measurement accuracy is improved, the chassis is locked on the ground through the bolt, by placing the shell on the upper surface of the chassis, the movable block drives the extrusion rubber mat to be in contact with the outer surface of the shell, so that the shell is fixed, the situation that the shell shakes due to external impact is avoided, the measurement accuracy is influenced, and the measurement accuracy is further improved.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the main view of the local internal structure of the present invention;

fig. 3 is a schematic cross-sectional structure view of the top view of the housing of the present invention;

FIG. 4 is an enlarged schematic view of the position A of the present invention;

illustration of the drawings: 1. a housing; 2. a friction pad; 3. a sealing strip; 4. a box cover; 5. mounting a shell; 6. a first housing case; 7. a regulated power supply; 8. a T-shaped shaft; 9. extruding the rubber mat; 10. a movable shaft; 11. a first spring; 12. a stationary case; 13. a moving block; 14. a chassis; 15. a rotating shaft; 16. a second accommodating case; 17. a light intensity meter; 18. a light-trapping device; 19. a turntable; 20. a through hole; 21. an optical filter; 22. a card slot; 23. a semi-circular extrusion; 24. a second spring; 25. a circular tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an optical filter-based optical wavelength measuring device comprises a shell 1 and a chassis 14, wherein the shell 1 is arranged on the upper surface of the chassis 14, a box cover 4 is arranged in a sliding groove formed in the upper surface of the shell 1 in a sliding manner, a sealing strip 3 is fixedly arranged on the side wall of the box cover 4, a rotating shaft 15 is arranged in the outer wall of the shell 1 in an inserting manner, one end of the rotating shaft 15 penetrates through and extends to the inside of the shell 1 and is fixedly provided with a rotating disc 19, a through hole 20 and a clamping groove 22 are formed in the rotating disc 19, an optical filter 21 is arranged in the clamping groove 22, an optical capturing device 18 is arranged in the shell 1, a circular tube 25 is embedded in the outer surface of the shell 1, the shell 1 is made of black opaque materials, a fixed shell 12 is fixedly arranged on the upper surface of the chassis 14, a movable shaft 10 is arranged in the fixed shell, the shell 1 is designed to be black, so that external light is prevented from permeating into the shell 1 to interfere measurement, the chassis 14 is locked on the ground through bolts by installing the fixed shell 12, the moving shaft 10 and the moving block 13, the shell 1 is placed on the upper surface of the chassis 14, the extruding rubber pad 9 is driven by the moving block 13 to be in contact with the outer surface of the shell 1, the shell 1 is fixed, the shell 1 is prevented from shaking due to external impact, the measurement accuracy is influenced, and the measurement accuracy is further improved;

the outer surface of the shell 1 is fixedly provided with a mounting shell 5, the inside of the mounting shell 5 is provided with a T-shaped shaft 8 in an inserting manner, one end of the T-shaped shaft 8 is fixedly provided with a semicircular extrusion part 23, the semicircular extrusion part 23 and the outer surface of the semicircular extrusion part 23 are provided with a friction pad 2, the mounting shell 5, the T-shaped shaft, the semicircular extrusion part 23 and the friction pad 2 are arranged, when a laser pen is inserted into the shell 1 through a round pipe 25, the T-shaped shaft 8 is driven to move due to the elasticity of a second spring 24, the semicircular extrusion part 23 and the friction pad 2 are driven to be in contact with and extrude the laser pen, the measurement accuracy is prevented from being influenced due to the shaking of the laser pen during measurement, the outer surface of the T-shaped shaft 8 is sleeved with the second spring 24, one end of the second spring 24 is fixedly connected with the inner wall of the mounting shell 5, the other end of the second spring 24 is fixedly connected, by installing the second spring 24, after the measurement is finished, the friction pad 2 is separated from the laser pen by pulling the T-shaped shaft 8, and the laser pen is taken out;

the movable block 13 is slidably mounted on the inner wall of the fixed shell 12, the side wall of the movable block 13 is fixedly provided with the extrusion rubber mat 9, the outer surface of the movable shaft 10 is sleeved with the first spring 11, one end of the first spring 11 is fixedly connected with the inner wall of the fixed shell 12, the other end of the first spring 11 is fixedly connected with the side wall of the movable block 13, and the extrusion rubber mat 9 and the first spring 11 are mounted, so that the stability of the shell 1 on the chassis 14 is ensured, and the measurement efficiency is improved;

the lateral wall fixed mounting of shell 1 has first shell 6 that holds, the first inside that holds shell 6 is provided with constant voltage power supply 7, the lateral wall fixed mounting of shell 1 has the second to hold shell 16, the inside that the second held shell 16 is provided with light intensity meter 17, through installing constant voltage power supply 7, has solved the laser pen and has been supplied power by the dry battery, and output is unstable, influences the measurement of luminous intensity, leads to the great problem of measuring result error, has improved measuring precision, holds shell 16 and light intensity meter 17 through installing the second, accomodates the light intensity meter to the second and holds the inside of shell 16, and is in the surface of shell 1, conveniently observes the display screen of light intensity meter 17 when measuring.

The working principle is as follows: when the laser pen is used, the laser pen is inserted into the shell 1 from the inside of the round pipe 25, the laser pen is powered by the stabilized voltage power supply 7, the box cover 4 is closed, the inside of the shell 1 is in a dark state, the light emitted by the laser pen is reflected to the rotary table 19 through the light capturing device 18, the rotary table 19 is rotated, the light intensity of the laser passing through the non-shielding through hole 20 is measured, the indication number of the display screen at the moment is recorded by observing the display of the light intensity meter 17, the rotary table 19 is rotated again, the light intensity of the laser passing through the two optical filters 21 is measured, the indication number of the display screen at the moment is recorded, the transmittance is calculated, the wavelength is obtained by comparing the indication number with the characteristic curve of the previous optical filter 21, the use is convenient and fast, when the laser pen is inserted into the shell 1 through the round pipe 25, the T-shaped shaft 8 is driven to move due to the elasticity of the second spring 24, and the semicircular laser pen, avoid when measuring, because the shake of laser pen influences measuring accuracy nature, after the measurement finishes, make friction pad 2 and laser pen break away from the contact through pulling T type axle 8, take out the laser pen can, through being provided with constant voltage power supply 7, it is supplied power by the dry battery to have solved the laser pen, output is unstable, influence the measurement of luminous intensity, lead to the great problem of measuring result error, measuring precision has been improved, pass through bolt locking on ground with chassis 14, through putting the upper surface at chassis 14 with shell 1, drive extrusion cushion 9 and shell 1 surface contact through movable block 13, realize the fixed to shell 1, avoid external impact to cause rocking of shell 1, measuring accuracy has been influenced, further improved measuring precision.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An optical filter-based optical wavelength measuring device, comprising a housing (1) and a chassis (14), characterized in that: the upper surface on chassis (14) is provided with shell (1), slidable mounting has case lid (4) in the spout that the upper surface of shell (1) was seted up, the lateral wall fixed mounting of case lid (4) has sealing strip (3), it installs axis of rotation (15) to insert in the outer wall of shell (1), the inside fixed mounting that the one end of axis of rotation (15) passed and extended to shell (1) has carousel (19), through-hole (20) and draw-in groove (22) have been seted up to the inside of carousel (19), the inside of draw-in groove (22) is equipped with light filter (21), the inside of shell (1) is provided with catches light device (18), and pipe (25) have been inlayed to the surface of shell (1).

2. The filter-based optical wavelength measurement device of claim 1, wherein: the outer shell (1) is made of black opaque materials, a fixed shell (12) is fixedly mounted on the upper surface of the base plate (14), a moving shaft (10) is mounted inside the fixed shell (12) in an inserted mode, and a moving block (13) is fixedly mounted at one end of the moving shaft (10).

3. The filter-based optical wavelength measurement device of claim 2, wherein: the movable block (13) is slidably mounted on the inner wall of the fixed shell (12), an extrusion rubber mat (9) is fixedly mounted on the side wall of the movable block (13), a first spring (11) is sleeved on the outer surface of the movable shaft (10), one end of the first spring (11) is fixedly connected with the inner wall of the fixed shell (12), and the other end of the first spring (11) is fixedly connected with the side wall of the movable block (13).

4. The filter-based optical wavelength measurement device of claim 1, wherein: the utility model discloses a friction pad, including shell (1), the outer fixed surface of shell (1) installs installation shell (5), the inside of installation shell (5) is planted and is installed T type axle (8), the one end fixed mounting of T type axle (8) has semicircle extruded article (23), the outer surface mounting of semicircle extruded article (23) has friction pad (2).

5. The filter-based optical wavelength measurement device of claim 4, wherein: the surface cover of T type axle (8) is equipped with second spring (24), the one end of second spring (24) and the inner wall fixed connection of installation shell (5), the other end of second spring (24) and the surface fixed connection of T type axle (8).

6. The filter-based optical wavelength measurement device of claim 1, wherein: the lateral wall fixed mounting of shell (1) has first shell (6) that holds, the inside of first shell (6) that holds is provided with constant voltage power supply (7), the lateral wall fixed mounting of shell (1) has the second to hold shell (16), the inside that the second held shell (16) is provided with light intensity meter (17).