CN114995014B - A device for measuring rainbow and neon deflection angles - Google Patents

Abstract

The invention discloses a device for measuring the angle of neon and neon deflection, which comprises a bottom plate, a shell, a track mechanism, an atomization mechanism, a laser light source and a CCD camera; the shell and the track device are arranged on the bottom plate; the shell is provided with a projection surface and a mounting plate; the track mechanism comprises a motion controller and an annular track, and angle scales are arranged on the annular track; the atomization mechanism comprises a water pump, a water supply unit, a water supply pipe and an atomization nozzle; the water pump is arranged on the outer side surface of the mounting plate; the bottom of the water supply unit is arranged on the bottom plate, two sides of the water supply unit in the length direction are fixedly connected with the inner side surface of the mounting plate, and one side of the water supply unit in the width direction is fixedly connected with the projection surface; two ends of the water supply pipe are arranged on the inner side surface of the mounting plate, and a liquid inlet and a liquid outlet of the water pump are respectively communicated with the water supply unit and the water supply pipe; the atomizing nozzle is arranged on the water supply pipe; the laser light source and the CCD camera are respectively arranged on the track mechanism; the motion controller is used for controlling the laser light source and the CCD camera to move independently.

Description

A device for measuring rainbow and neon deflection angles

Technical Field

The invention relates to the field of rainbow and neon deflection angle measurement, and in particular to a rainbow and neon deflection angle measurement device.

Background technique

Rainbows and neons are a natural phenomenon formed by the internal reflection and refraction of sunlight entering spherical water droplets. Since it often rains in summer, the sun is visible on one half of the sky after the rain, while the other half is covered with thick clouds. At this time, when the sunlight passes through the clouds and the water vapor and water droplets in the air, it is refracted into colorful neon.

A rainbow is formed when sunlight is refracted into water droplets and scattered at the same time, then reflected once inside the water droplets, and finally refracted out of the water droplets. It usually appears on a circle with a viewing angle of about 42°, with the extension of the line from the sun to the human eye as the visual axis. Its color sequence from outside to inside is red, orange, yellow, green, blue, indigo, and purple.

Neon is formed when sunlight first refracts into water droplets and is scattered at the same time, then reflects twice in the water droplets, and finally refracts out of the water droplets. It usually appears on a circle with a viewing angle of about 51°, with the extension of the line from the sun to the human eye as the visual axis. Due to two internal reflections, the color sequence of the neon is opposite to that of the rainbow, and from the outside to the inside, there are seven colors: purple, indigo, blue, green, yellow, orange, and red. At the same time, since the formation of neon has one more internal reflection than the formation of the rainbow, the internal reflection is not a perfect total reflection, and it will lose more energy on the basis of the rainbow. Therefore, the neon obtained after two internal reflections is usually weaker than the rainbow after only one internal reflection.

Rainbows and neon lights usually appear after the rain, but when the temperature is low, there are fewer water vapor and water droplets in the air after the rain than when the temperature is high, making it difficult for rainbows and neon lights to form. The experimental device for observing and measuring rainbows and neon lights should be able to measure the parameters of rainbows and neon lights while achieving the reproduction of rainbows and neon lights.

Based on the principle of rainbow formation, the current existing technology uses a spectrometer, lens and transparent water tank to present the rainbow formation process and measure the illumination and area of the presented rainbow light band. In addition, the principle of rainbow formation is also used to study the influence of solutions with different concentration gradients on the rainbow refraction angle.

The existing technology mainly focuses on restoring the formation process of the rainbow and producing rainbow presentation and measurement devices for measuring different physical parameters. However, the existing devices do not directly present the process of rainbow formation in nature, and cannot simultaneously present the rainbow and neon and measure the deflection angles of the rainbow and neon.

Therefore, there is an urgent need for a technical solution that can solve the problem that the existing devices cannot simultaneously present the rainbow and the neon and measure the deflection angle.

Summary of the invention

The object of the present invention is to provide a device for measuring the deflection angles of a rainbow and a neon, so as to solve the problem that the existing device cannot simultaneously present and measure the deflection angles of a rainbow and a neon.

In order to solve the above technical problems, the present invention provides a device for measuring the deflection angles of rainbows and neons, comprising a base plate, a shell, a track mechanism, an atomizing mechanism, a laser light source and a CCD camera; the shell and the track mechanism are mounted on the base plate; the shell is provided with a projection surface and a mounting plate; the track mechanism comprises a motion controller and a circular track, and the circular track is provided with an angle scale; the atomizing mechanism comprises a water pump, a water supply unit, a water supply pipe and an atomizing nozzle; the water pump is mounted on the outer side of the mounting plate; the bottom of the water supply unit is mounted on the base plate, and the water supply unit is mounted on the base plate. Both sides of the unit in the length direction are connected and fixed to the inner side surface of the mounting plate, and one side of the water supply unit in the width direction is connected and fixed to the projection surface; both ends of the water supply pipe are installed on the inner side surface of the mounting plate, and the liquid inlet and outlet of the water pump are respectively connected to the water supply unit and the water supply pipe; the atomizing nozzle is installed on the water supply pipe, and the atomizing nozzle is connected to the water supply pipe; the laser light source and the CCD camera are respectively installed on the track mechanism; the motion controller is used to control the laser light source and the CCD camera to move independently.

In one embodiment, the housing is made of black light-transmitting acrylic.

In one of the embodiments, the track mechanism further includes a first slider and a second slider slidably mounted on the track; the CCD camera is mounted on the first slider, and the laser light source is mounted on the second slider.

In one embodiment, the motion controller is used to control the laser light source and the CCD camera to move independently at different angles; the motion controller is used to control the laser light source and the CCD camera to move synchronously at a fixed angle.

In one of the embodiments, the atomizing nozzle is provided with a water inlet, a pressurized micro-duct, an atomizing port and a fan-shaped notch which are connected in sequence; the fan-shaped notch is provided with a symmetrical inclined surface; the atomizing nozzle is used to spray a fan-shaped spray.

In one of the embodiments, the atomizing nozzle is provided with a water inlet, a pressurized micro-pipe and an atomizing port which are connected in sequence; the atomizing port is a circular through hole; and the atomizing nozzle is used to spray a circular spray.

In one of the embodiments, there are multiple atomizing nozzles, and the multiple atomizing nozzles are evenly arranged along the length direction of the water supply pipe.

In one of the embodiments, the water supply unit is provided with a water pool, a water collecting plate and an anti-overflow plate; the two intersecting side surfaces of the water pool are sealedly connected to the inner side surface of the mounting plate and the projection surface; the water collecting edge and the bevel collecting edge are provided on both sides of the length direction of the water collecting plate; the water collecting edge is sealedly connected to the projection surface, the two ends of the water collecting plate are respectively sealedly connected to the water inlet of the water pool and the mounting plate, and the water collecting plate is installed obliquely from the bevel collecting edge to the water collecting edge; the anti-bevel edge and the anti-overflow edge are provided on both sides of the length direction of the anti-overflow plate; one end of the anti-overflow plate is sealedly connected to the mounting plate, and one side of the other end of the anti-overflow plate is successively provided with a right-angle edge and the anti-bevel edge, and the right-angle edge is sealedly connected to the water inlet; the anti-bevel edge is sealedly connected to the bevel collecting edge, and the anti-overflow plate is installed obliquely from the anti-overflow edge to the anti-bevel edge.

The beneficial effects of the present invention are as follows:

In order to solve the problem that the existing devices are unable to present rainbows and neon lights and measure the deflection angles at the same time, the track mechanism in the present solution includes a motion controller and a circular track, and the circular track is provided with an angle scale; the laser light source and the CCD camera are installed on the circular track, and the motion controller further controls the laser light source and the CCD camera to move independently at different angles, or controls the laser light source and the CCD camera to move synchronously at a fixed angle; so that the laser light source and the CCD camera always present rainbows and neon lights in the water mist created by the atomizing nozzle; thereby, while artificially creating rainbows and neon lights, the rainbows and neon lights at the same point can be observed at different angles; then the observation angle of the corresponding CCD camera on the track is recorded, so that the measurement of the deflection angles while presenting the rainbows and neon lights can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of an overall device according to a first embodiment of the present invention;

FIG2 is an axonometric view of the overall device of the first embodiment of the present invention;

FIG3 is a cross-sectional view of an atomizing head according to a first embodiment of the present invention;

FIG. 4 is a cross-sectional view of an atomizing head according to a second embodiment of the present invention.

The reference numerals are as follows:

1. Bottom plate;

2. housing; 21. projection surface; 22. mounting plate;

3. Track mechanism; 31. Motion controller; 32. Annular track; 33. First slider; 34. Second slider;

4. Atomizing mechanism; 41. Water pump; 411. Liquid inlet; 412. Liquid outlet; 42. Water supply pipe;

5. Water supply unit; 51. Water pool; 511. Water inlet; 52. Water collecting plate; 521. Water collecting edge; 522. Water collecting bevel edge; 53. Anti-overflow plate; 531. Right angle edge; 532. Anti-bevel edge; 533. Anti-overflow edge;

6. Atomizing nozzle; 61. Water inlet; 62. Pressurized micro-channel; 63. Atomizing port; 631. Circular through hole; 64. Fan-shaped notch; 641. Inclined surface;

7. CCD camera;

8. Laser light source.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

An embodiment of a device for measuring the deflection angle of rainbow and neon is shown in Fig. 1 and Fig. 2, and comprises a bottom plate 1, a shell 2, a track mechanism 3, an atomizing mechanism 4, a laser light source 8 and a CCD camera 7; the shell 2 and the track mechanism are mounted on the bottom plate 1; the shell 2 is provided with a projection surface 21 and a mounting plate 22; the track mechanism 3 comprises a motion controller 31 and an annular track 32, and an angle scale is provided on the annular track 32; the atomizing mechanism 4 comprises a water pump 41, a water supply unit 5, a water supply pipe 42 and an atomizing nozzle 6; the water pump 41 is mounted on the outer side of the mounting plate 22; the bottom of the water supply unit 5 is mounted on the bottom plate 1, and both sides of the water supply unit 5 in the length direction are connected and fixed to the inner side of the mounting plate 22, and one side of the water supply unit 5 in the width direction is connected and fixed to the projection surface 21; the water supply pipe 42 The two ends are mounted on the inner side of the mounting plate 22, the liquid inlet 411 and the liquid outlet 412 of the water pump 41 are connected to the water supply unit 5 and the water supply pipe 42 respectively; the atomizing nozzle 6 is mounted on the water supply pipe 42, and the atomizing nozzle 6 is connected to the water supply pipe 42; the laser light source 8 and the CCD camera 7 are respectively mounted on the track mechanism 3; the motion controller 31 is used to control the laser light source 8 and the CCD camera 7 to move independently.

Furthermore, in order to realize the display of rainbows and neon lights, the shell 2 is configured in this embodiment to be a black light-transmitting acrylic member.

When used in application, the use of acrylic plate for the housing 2 needs to limit both the color and light transmittance, because a relatively strong light source is needed to reproduce the rainbow. Using a black acrylic plate can improve the contrast and make it easier to see the rainbow.

Secondly, in order to achieve the best observation effect, the shell 2 needs to use a semi-transparent black acrylic plate; if an opaque acrylic plate is used, the light emitted by the laser light source 8 will be completely reflected, reducing the effect of observing the rainbow; the semi-transparent acrylic plate can reflect part of the light, increasing the effect of observing the rainbow.

Regarding the above-mentioned track mechanism 3, the track mechanism 3 also includes a first slider 33 and a second slider 34 slidably mounted on the track; the CCD camera 7 is mounted on the first slider 33, and the laser light source 8 is mounted on the second slider 34.

There are two motion control modes for the laser light source 8 and the CCD camera 7:

1. The track mechanism 3 further includes a motion controller 31, which is used to control the laser light source 8 and the CCD camera 7 to move independently at different angles;

2. The motion controller 31 is used to control the laser light source 8 and the CCD camera 7 to move synchronously at a fixed angle.

The observation principle of the laser light source 8 and the CCD camera 7 is that the light emitted by the laser light source 8 is used to illuminate the water mist sprayed by the atomizing nozzle 6 at different angles to form rainbows and neon; the CCD camera 7 is used to observe the rainbows and neon at different angles.

Beneficial effect: The difference between this solution and the fixed shooting of the prior art is that it uses a magnetic levitation track to control the movement of the laser light source 8 and the CCD camera 7, and can capture the rainbow presented by continuously changing the incident angle of the laser light source 8, and measure the changes in the rainbow and neon deflection angle of the continuously changing laser light source 8 through the angle scale on the circular track 32.

When applied, it uses an annular track 32, which uses conductive weak magnetic materials such as copper and aluminum; an electromagnet is installed in the slider, and an AC power supply is separately supplied to the first slider 33 and the second slider 34. A power amplifier is used to control the frequency, voltage and current of the AC power supply to make the first slider 33 and the second slider 34 move on the annular track 32; this magnetic levitation solution uses the eddy current suspension principle.

The control method of the motion controller 31 is as follows: (1) The second slider 34 and the laser light source 8 can be suspended by the motion controller 31. By changing the excitation current in the excitation coil in the track, the second slider 34 and the laser light source 8 can move along the track. By changing the position of the laser light source 8 by the motion controller 31, the changes in the incident direction of the laser light source 8 can be observed in the CCD camera 7.

(2) The first slider 33 and the CCD camera 7, the second slider 34 and the laser light source 8 can be suspended simultaneously by the motion controller 31. By changing the excitation current in the track excitation coil, the first slider 33 and the CCD camera 7, the second slider 34 and the laser light source 8 can move simultaneously along the track. At this time, the angle between the CCD camera 7 and the laser light source 8 is fixed, and the CCD camera 7 and the laser light source 8 move simultaneously in the track. The CCD camera 7 can observe the changes in the rainbow and neon images taken from different directions.

By taking images of rainbows and neons at different angles and comparing them, we can compare the differences in the deflection angles of rainbows and neons measured at different light source incident angles and different shooting angles.

Regarding the arrangement of the above-mentioned atomizing nozzles 6 , as shown in FIG. 1 , there are a plurality of atomizing nozzles 6 , and the plurality of atomizing nozzles 6 are evenly arranged along the length direction of the water supply pipe 42 .

Furthermore, in order to make rainbows and neon lights appear in the produced water mist, as shown in FIG3 , the atomizing nozzle 6 is provided with a water inlet 61, a pressurized micro-duct 62, an atomizing port 63 and a fan-shaped slot 64 which are connected in sequence; the fan-shaped slot 64 is provided with a symmetrical inclined surface 641; the atomizing nozzle 6 is used to spray out a fan-shaped spray.

When used, the solution is further pressurized by the pressurized micro-channel 62, sprayed out from the atomization port 63, and then restricted by the fan-shaped slot 64 to create a fan-shaped water mist; multiple atomization heads spray fan-shaped water mist at the same time to create a fan-shaped water curtain; the laser light source 8 projects strong light onto the fan-shaped water curtain to create rainbows and neon; the reason for using fan-shaped water mist is mainly that the rainbow observed in daily life is generally arc-shaped, and the fan-shaped water mist just matches the shape of the rainbow, simulating an effect close to that of a naturally occurring rainbow.

Regarding the structure of the above-mentioned water supply unit 5, this embodiment is shown in Figures 1 and 2, and the water supply unit 5 is provided with a water pool 51, a water collecting plate 52 and an anti-overflow plate 53; the two intersecting sides of the water pool 51 are sealed with the inner side of the mounting plate 22 and the projection surface 21; the water collecting plate 52 is provided with a water collecting edge 521 and a collecting bevel edge 522 on both sides in the length direction; the water collecting edge 521 is sealed with the projection surface 21, and the two ends of the water collecting plate 52 are respectively sealed with the water inlet 511 of the water pool 51 and the mounting plate 22, and the water collecting plate 52 is installed obliquely from the collecting bevel edge 522 to the water collecting edge 521; the anti-overflow plate 53 is provided with an anti-bevel edge 532 and an anti-overflow edge 533 on both sides in the length direction; one end of the anti-overflow plate 53 is sealed with the mounting plate 22, and one side of the other end of the anti-overflow plate 53 is provided with right-angle edges 531 in sequence The right-angle edge 531 is sealed with the water inlet 511 and the anti-bevel edge 532 ; the anti-bevel edge 532 is sealed with the bevel edge, and the anti-overflow plate 53 is installed obliquely from the anti-overflow edge 533 to the anti-bevel edge 532 .

When using, just add water or prepared solution into the pool 51, and the water pump 41 will pump the water into the pool. 51 is pumped away, and the solution enters the internal pressure pump from the liquid inlet 411 of the water pump 41. After pressurization, the solution is sprayed out from the liquid outlet 412, and the solution enters the water supply pipe 42, and then the pressurized solution is sprayed out from the atomizing nozzle 6 on the water supply pipe 42; when observing rainbows and neon lights, the atomizing nozzle 6 will continue to spray; in order to achieve the environmental protection and sustainability of the use of this device, after the water mist sprayed by the atomizing nozzle 6 falls, the water mist sprayed farther will fall on the anti-overflow plate 53, and the water mist sprayed closer will fall on the water collecting plate 52. Since the water collecting plate 52 and the anti-overflow plate 53 are both installed with a proper inclination, the collected water mist will converge and flow to the water inlet 511 of the pool 51; the collected solution flows into the pool 51, and is pumped away by the water pump 41 again and then sprayed out under pressure, forming the sustainable use of water mist-solution, which meets the design rules of environmental protection and low carbon.

In addition, using different solutions will also produce different effects of rainbows and neons, which is related to the refractive index of the solution, for example:

1. At 20°C, the refractive index of water is 1.333, the refractive index of 3% glucose solution is 1.371, the refractive index of 5% glucose solution is 1.417, and the refractive index of saturated saline solution is between 1.5 and 1.6.

2. Different solutions have different refractive indices for light, which will lead to different refraction angles for light. In the process of forming rainbows and neon lights, light needs to undergo multiple refractions. If a solution with a high refractive index is used, the refraction angle of light will be larger, resulting in different deflection angles of the final observed rainbows and neon lights.

The second embodiment of the present invention is shown in FIG4 , which is basically the same as the first embodiment, except that the atomizing nozzle 6 is provided with a water inlet 61, a pressurized micro-duct 62 and an atomizing port 63 which are connected in sequence; the atomizing port 63 is a circular through hole 631; the atomizing nozzle 6 is used to spray a circular spray.

When the solution is applied, it is further pressurized by the pressurized micro-channel 62 and then sprayed out from the atomization port 63 of the circular through hole to produce a circular water mist; multiple atomization heads spray out circular water mist at the same time; the laser light source 8 projects strong light on the circular water mist to produce rainbows and neons; the reason for using circular water mist is to expand the area of the water mist and explore whether the rainbows and neons will produce corresponding changes under different water curtain shapes. When used for teaching, it can guide students to explore unknown knowledge and increase their interest and motivation in learning.

The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims (7)

1. A device for measuring neon and neon deflection angle, which is characterized in that,

The device comprises a bottom plate, a shell, a track mechanism, an atomization mechanism, a laser source and a CCD camera;

the shell and the track mechanism are arranged on the bottom plate; the shell is provided with a projection surface and a mounting plate;

the track mechanism comprises a motion controller and an annular track, wherein angle scales are arranged on the annular track;

The atomization mechanism comprises a water pump, a water supply unit, a water supply pipe and an atomization nozzle;

The water pump is arranged on the outer side surface of the mounting plate;

The bottom of the water supply unit is arranged on the bottom plate, two sides of the water supply unit in the length direction are fixedly connected with the inner side surface of the mounting plate, and one side of the water supply unit in the width direction is fixedly connected with the projection surface;

The two ends of the water supply pipe are arranged on the inner side surface of the mounting plate, and the liquid inlet and the liquid outlet of the water pump are respectively communicated with the water supply unit and the water supply pipe; the atomizing nozzle is arranged on the water supply pipe and is communicated with the water supply pipe;

the laser light source and the CCD camera are respectively arranged on the track mechanism;

the motion controller is used for controlling the laser light source and the CCD camera to move independently;

The motion controller is used for controlling the laser light source and the CCD camera to independently move at different angles, the position of the laser light source is changed through the motion controller, and the CCD camera can observe the change condition of continuously changing the incident direction rainbow and neon images of the laser light source;

Or the motion controller is used for controlling the laser light source and the CCD camera to synchronously move at a fixed angle, fixing the included angle between the CCD camera and the laser light source, enabling the CCD camera and the laser light source to simultaneously move in the track, and observing the change condition of the rainbow and neon images shot in different directions in the CCD camera.

2. The neon and neon angle measuring device according to claim 1, wherein,

The shell is a black light-transmitting acrylic part.

3. The neon and neon angle measuring device according to claim 2, wherein,

The track mechanism further comprises a first sliding block and a second sliding block which are slidably mounted on the track;

The CCD camera is arranged on the first sliding block, and the laser light source is arranged on the second sliding block.

4. The neon and neon angle measuring device according to claim 1, wherein,

The atomizing nozzle is provided with a water inlet, a pressurizing micro-pipeline, an atomizing port and a fan-shaped notch which are sequentially communicated;

the fan-shaped notch is provided with symmetrical inclined planes;

The atomizing nozzle is used for spraying fan-shaped spray.

5. The neon and neon angle measuring device according to claim 1, wherein,

The atomizing nozzle is provided with a water inlet, a pressurized micro-pipeline and an atomizing port which are sequentially communicated;

The atomizing port is a circular through hole;

The atomizing nozzle is used for spraying circular spray.

6. The neon and neon angle measuring device according to claim 1, wherein,

The atomizing spray heads are multiple, and the atomizing spray heads are uniformly arranged along the length direction of the water supply pipe.

7. The neon and neon angle measuring device according to claim 1, wherein,

The water supply unit is provided with a water tank, a water collecting plate and an anti-overflow plate;

Two intersecting side surfaces of the water tank are in sealing connection with the inner side surface of the mounting plate and the projection surface;

the two sides of the water collecting plate in the length direction are provided with water collecting edges and bevel edges;

the water collecting edge is in sealing connection with the projection surface, two ends of the water collecting plate are respectively in sealing connection with the water inlet of the water tank and the mounting plate, and the water collecting plate is obliquely mounted from the water collecting oblique edge to the water collecting edge;

the two sides of the anti-overflow plate in the length direction are provided with an anti-inclined edge and an anti-overflow edge;

one end of the anti-overflow plate is in sealing connection with the mounting plate, one side of the other end of the anti-overflow plate is sequentially provided with a right-angle edge and the anti-sloping edge, and the right-angle edge is in sealing connection with the water inlet; the anti-overflow plate is obliquely arranged from the anti-overflow edge to the anti-overflow edge.