CN216249690U - Rainbow measuring and controlling device - Google Patents
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- CN216249690U CN216249690U CN202122724544.0U CN202122724544U CN216249690U CN 216249690 U CN216249690 U CN 216249690U CN 202122724544 U CN202122724544 U CN 202122724544U CN 216249690 U CN216249690 U CN 216249690U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 63
- 239000011780 sodium chloride Substances 0.000 claims abstract description 31
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Abstract
The utility model provides a rainbow measurement and control device, which comprises a light source, a transparent water cylinder, a receiving light screen and a spectrometer component, wherein the light source, the transparent water cylinder, the receiving light screen and the spectrometer component are sequentially arranged along the transmission direction of light. According to the utility model, clear water in the transparent water tank is replaced by sodium chloride solution with gradient concentration, a spectrometer component for measuring refraction angles of different colors in the rainbow band is arranged between the light receiving screen and the transparent water tank, and the light receiving screen can not only receive the rainbow image, but also measure the area of the rainbow image, so that the aim of measuring multiple indexes of the rainbow can be realized.
Description
Technical Field
The utility model belongs to the technical field of optical measurement, and particularly relates to a rainbow measurement and control device.
Background
Rainbow and neon are a natural phenomenon formed by the reflection and refraction of solar rays by water droplets in the atmosphere. When it rains on a sunny day, colored arcs appear in the sky opposite to the sun, and seven colors of red, orange, yellow, green, blue, indigo and purple are arranged in a certain sequence. The arc can sometimes see two arcs, the red is outside and purple inside, the color is bright called ' rainbow ', the red is inside and purple outside, and the color is lighter called neon '. When the rainbow is formed, sunlight enters the water drop, is refracted once, then is reflected on the back of the water drop, and finally is refracted once again when leaving the water drop. Because water has a dispersive effect on light, the refractive index of light of different wavelengths is different, and the refraction angle of violet light is larger than that of red light. Since the light is reflected within the drop, the spectrum seen by the viewer is inverted, red light is uppermost and the other colors are lower.
The neon light is obtained by refracting sunlight into a water drop, reflecting the sunlight twice in the water drop and finally emitting the water drop through refraction. Because the reflection is not perfect total reflection and partial energy is lost, the neon obtained by two reflections is generally weaker than the rainbow obtained by only one reflection, and the neon obtained by the traditional method with weaker light intensity is inconvenient for researchers to observe and accurately research.
Rainbow and neon are common natural phenomena after raining and sunny days, and understanding the formation mechanism and research method thereof can deepen scientific cognition on the optical phenomena. The experimental device designed for observing the rainbow and the neon can meet the requirements of measuring, researching and discussing partial parameter indexes of the rainbow or the neon and deeply discussing the influence of the partial parameter indexes on the premise of realizing the basic reappearance of the experimental phenomena of the rainbow and the neon.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects or shortcomings in the prior art, the utility model provides a rainbow measurement and control device, which solves the technical problem that the existing rainbow presentation device cannot accurately measure rainbow parameters.
In order to achieve the above object, the present invention provides a rainbow measurement and control device, which comprises a light source, a transparent water tank, a receiving light screen, and a spectrometer assembly located between the transparent water tank and the receiving light screen, which are sequentially arranged along a light transmission direction, and is characterized in that clear water or a sodium chloride solution with a gradient concentration is contained in the transparent water tank, a light reflection member for reflecting light incident into the transparent water tank is arranged in the transparent water tank, and the light reflection member is attached to an inner side wall of the transparent water tank and immersed in the clear water or the sodium chloride solution with the gradient concentration; the receiving light screen is used for receiving light refracted out of the transparent water tank and measuring the area of the rainbow, and the spectrometer component is used for measuring the refraction angles of different colors of light in the rainbow band.
In an embodiment of the utility model, a bracket for fixing coordinate paper is installed on one side of the outgoing light path facing the rainbow of the light receiving screen, light refracted from the transparent water cylinder can be displayed on the coordinate paper, and the area of each square on the coordinate paper is 1mm2。
In an embodiment of the utility model, the rainbow measurement and control device further comprises an object stage positioned below the transparent water cylinder, and the object stage can rotate and is used for adjusting the horizontal balance of the spectrometer component.
In an embodiment of the utility model, the spectrometer assembly comprises an eyepiece, a dial and a support handle arranged below the eyepiece, the eyepiece is rotatably connected with the support handle and can rotate around the center of the objective table, so that the extension line of the emergent ray emitted from the transparent water jar is intersected with the right upper part of the circular shape of the objective table.
In an embodiment of the present invention, the rainbow measurement and control device further includes a laser range finder located on the stage, and the laser range finder is configured to measure a length of each segment in a rainbow light path.
In the embodiment of the utility model, the rainbow measurement and control device further comprises a base arranged below the objective table, and universal wheels for walking are installed at the bottom of the base.
In the embodiment of the utility model, a hard plastic anti-skid pad is placed on the base.
In an embodiment of the present invention, the rainbow measurement and control device further includes an intensity meter for measuring the light intensity of the refracted light of the rainbow.
In the embodiment of the utility model, the transparent water vat is made of an acrylic glass product.
In the embodiment of the utility model, two rows of light-shielding paper are adhered to the inner side wall of the cylinder body on one side of the transparent water cylinder close to the light source along the height direction, and a space for light rays emitted by the light source to enter is formed between the two rows of light-shielding paper.
Through the technical scheme, the rainbow measurement and control device provided by the embodiment of the utility model has the following beneficial effects:
and adding clear water into the transparent water vat to the scale marks, turning on a light source, and refracting the light into the transparent water vat through a slit reserved on the side wall of the transparent water vat after the light is emitted. The rainbow image formed by refraction, reflection and refraction can be received on the other side of the transparent water tank by rotating the bearing light screen. At this time, the light reflecting element for reflecting the light on the inner side wall of the transparent water tank simulates the generation process of the neon light, the light is dispersed through refraction-reflection-refraction, and the neon light image is generated on the other side of the rainbow, and the neon light and the rainbow light are opposite in color arrangement. In addition, the clear water in the transparent water tank is replaced by the sodium chloride solution with gradient concentration, the spectrometer component for measuring the refraction angles of different colors of light in the rainbow band is arranged between the light receiving screen and the transparent water tank, and the light receiving screen can not only receive the rainbow image, but also measure the area of the rainbow image, thereby realizing the purpose of measuring multiple indexes of the rainbow.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a rainbow measurement and control device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the relationship between the intensity of an iris image and its area size according to the present invention;
FIG. 3 is a schematic diagram showing the relationship between the deflection angles of red and violet light according to the concentration of NaCl in the present invention;
FIG. 4 is a graph showing the difference between the dispersion ratios of violet light and red light according to the mass fraction of NaCl solution in the present invention;
FIG. 5 is a graph showing the refractive index of red and violet light in sodium chloride solutions of different concentrations in the present invention.
Description of the reference numerals
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
41 | |
| 20 | |
50 | |
| 30 | Adapting light screen | 60 | |
| 40 | |
90 | Base seat |
Detailed Description
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the utility model and are not restrictive thereof.
The measurement and control device for a rainbow according to the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1, in an embodiment of the present invention, a rainbow measurement and control device is provided, the rainbow measurement and control device includes a light source 10, a transparent water tank 20, a receiving light screen 30, and a spectrometer assembly located between the transparent water tank 20 and the receiving light screen 30, which are sequentially arranged along a transmission direction of light, the transparent water tank 20 contains clear water or a sodium chloride solution with a gradient concentration, a light reflector for reflecting light incident into the transparent water tank 20 is disposed in the transparent water tank 20, and the light reflector is attached to an inner side wall of the transparent water tank 20 and is immersed in clear water or the sodium chloride solution with a gradient concentration; the receiving light screen 30 is used for receiving the light refracted from the transparent water tank 20 and measuring the area of the rainbow; the spectrometer assembly is used to measure the refraction angles of the different colors of light in the rainbow band.
And (3) rainbow and neon reappearance: adding clean water to the transparent water tank 20 to a water level line, wherein the weight of the clean water is 170g, the water tank is adjusted to a proper position, and after the light source is turned on, the emergent light path position of the light in the water tank just passes through the center of the objective table 50 of the spectrometer. The light source 10 is turned on, light is refracted into the transparent water jar 20 through a slit reserved on the side wall of the transparent water jar 20 after being emitted, and the light reflecting piece is used for reflecting light on the inner side wall of the transparent water jar 20. The rainbow image formed by refraction-reflection-refraction can be received on the other side of the transparent water tank 20 by rotating the receiving light screen 30. At this time, an aluminum mirror is inserted into the transparent water tank 20 and is perpendicular to the aluminum mirror 60 on the inner side wall, the generation process of the neon light is simulated, the light is dispersed through refraction-reflection-refraction, the image of the neon light is generated on the other side of the rainbow, and the neon light and the rainbow light are arranged in opposite colors.
The light source 10 is a white laser light source 10, and compared with the common light source 10, the white laser light source 10 has the characteristics of high brightness and high collimation, light rays tend to be parallel but not divergent, and the concentration degree is high. The white laser spectrum consists of three linear spectrums of red, blue and green, and the spectrums are discrete. The white color is very easy to separate due to dispersion phenomenon in the subsequent optical processing, and the seven-color spectrum is re-dispersed. Compared with the common light source 10, the visible light wavelength coverage is full, and the color band is more complete.
In addition, the utility model replaces the clear water in the transparent water tank 20 with the sodium chloride solution with gradient concentration, a spectrometer component for measuring the refraction angle of different colors in the rainbow zone is arranged between the receiving light screen 30 and the transparent water tank 20, and the receiving light screen 30 not only can receive the rainbow image, but also can measure the area of the rainbow image, thereby realizing the purpose of measuring multiple indexes of the rainbow.
In the embodiment of the present invention, a holder for fixing the coordinate paper is installed at one side of the exit light path facing the rainbow of the light screen 30, and the light refracted from the transparent water tank 20 can be displayed on the coordinate paper, wherein the area of each square on the coordinate paper is 1mm2。
Specifically, the sodium chloride solution is added to the transparent water tank 20 to the water line, the light source 10 is turned on, and the stage 50 is adjusted until an image of the iris is received on the receiving screen 30. The position of the fixed stage 50, receiving the light screen 30, does not change. With a support on the receiving screen 30 to a precision of 1mm2The coordinate paper of (2) is sandwiched between the light receiving screens 30, and the boundary of the rainbow image is drawn with a pen. The coordinate paper is taken down, the area of the coordinate paper is determined by counting the number of grids in the rainbow image on the coordinate paper, less than half grids are omitted, and more than half grids are recorded as one grid, and less than one grid is recorded. The area precision can be accurate to 1mm2. After the coordinate paper was removed, the light intensity of the rainbow image was measured by a light intensity meter. Taking account of the difference of the light intensity at different positions, the upper, lower, left, right and middle five points of the rainbow image are sampled and measured, and the average value is taken as the average light intensity of the rainbow image.
As shown in Table 1 and FIG. 2, the area of the iris on the receiving screen 30 is plotted against the change in illumination intensity. The area of the image on the screen and its average intensity (actually luminance) data are shown in table 1 with the addition of different lenses. The product of the area of the iris image on the screen and its average light intensity (illumination) is a constant value, the product is calculated and the relative deviation of each set of products from the average is calculated as shown in table 1. The relative deviation is within 5%. Considering the experimental accuracy, the product of the area of the iris on the light screen 30 and the average light intensity is a constant value and is inversely proportional to the error tolerance.
TABLE 1 data of illuminance, area, etc. of rainbow light band
In an embodiment of the present invention, the rainbow measurement and control device further comprises a stage 50 located below the transparent water tank 20, the stage 50 being rotatable and used to adjust the horizontal balance of the spectrometer assembly. The spectrometer assembly includes an eyepiece 40, a dial and a support handle 41 installed below the eyepiece 40, the eyepiece 40 is rotatably connected to the support handle 41 and can rotate around the center of the objective table 50, so that the extension line of the emergent ray emitted from the transparent water tank 20 intersects with the right upper side of the circle of the objective table 50. Since the eyepiece 40 of the spectrometer is also essentially a convex lens, when an image of the iris can be observed in the lens barrel of the eyepiece 40, the iris is also magnified by the eyepiece 40 of the spectrometer and appears as an inverted magnified image on the rear receiving screen 30.
In the experiment, a light source lens barrel of a spectrometer is changed into a white laser light source 10, a dial is fixed, the position of an original light source lens barrel is at a scale mark 0, and a pointer is added to an eyepiece lens barrel. When a clear rainbow image can be observed in the eyepiece, the deflection angle of the rainbow comparison light source 10 can be read by the pointer and the scale. After the device is modified, the measurement of experimental data is more convenient and accurate, and the volume of the device is reduced, so that the device is convenient to carry.
In addition, the rainbow measurement and control device also comprises an intensity meter for measuring the light intensity of the refracted light of the rainbow and a laser range finder positioned on the objective table (50), wherein the laser range finder is used for measuring the length of each section in a rainbow light path, and the resolution of the laser range finder is 0.1 mm. Specifically, the intensity meter can be used for measuring the brightness of light bands with different colors of rainbow or neon in different states, and analyzing the relation between the brightness of light and the optical path, and the accuracy can be 0.1 Lux. The use method of the intensity meter comprises the following steps: and opening the switch, and placing the illumination detector of the intensity meter under the light to be measured, wherein the reading is the intensity of the measured light. The use method of the laser range finder comprises the following steps: and setting the head of the laser emitted by the laser range finder as a point a, pressing a switch key to enable the red laser point to be aligned with a point b to be measured, and pressing a data recording key to measure the length between the point a and the point b.
According to the utility model, the sodium chloride solution in the transparent water tank 20 is set to different concentrations, and the influence of the medium refractive index on the rainbow refraction angle can be researched according to the refractive index of the sodium chloride solution medium with different concentration gradients.
The specific operation process is as follows: preparing 0%, 5%, 10%, 15%, 20%, 25% and saturated NaCl solution, measuring and recording the refractive index of the NaCl solution in sequence by using an Abbe refractometer, and drawing a NaCl solution refractive index correction curve. The weight of the water in the transparent water tank 20 at an appropriate amount of water was measured by the differential weight method to 170g, and the amount of NaCl required to reach the above concentration in the transparent water tank 20 in the experiment was calculated. Weigh well in advance and apply the label.
First, the iris is reproduced, and then the eyepiece 40 barrel of the spectrometer is rotated to emit the iris from the water tank, and then the iris is emitted through the eyepiece 40 barrel. At this time, the dispersed light of different colors is observed in the eyepiece 40 barrel. The eyepiece 40 barrel is carefully rotated so that the central cross-notch intersection of the eyepiece 40 is aligned with the red boundary of the rainbow. The angle of refraction of the red light is read by a pointer on the eyepiece 40 and a spectrometer dial. Reading out the refraction angle of the purple light in the same way; next, the fixed stage 50 was kept still, and weighed NaCl solid was added to the water tank and stirred with a glass rod to dissolve it sufficiently. The barrel of eyepiece 40 is rotated again so that the cross-cut intersection at the center of eyepiece 40 is aligned with the red border of the rainbow. The angle of refraction of red light under a 5% NaCl solution was read through a pointer on the eyepiece 40 and a dial of the spectrometer. The refraction angle of the purple light is read out in the same way. The above steps are repeated until the refraction angle of the red light and the purple light is measured when the red light and the purple light are saturated.
Specific experimental data are summarized as follows:
first, calibration of refractive index
Measurement of refractive index initial temperature: 27.0 ℃, refractive index end temperature was measured: 27.2 ℃, measurement of the initial temperature of the siphon: 32.0 ℃, end of siphon temperature: at the temperature of 32.0 ℃; when the temperature is increased by 1 ℃, the refractive index of the liquid is reduced by 3.5 x 10-4～5.5*10-4For ease of calculation, 4.0 x 10 is typically used-4Is a temperature change constant. Since the temperature was 32 ℃ in the gradient NaCl solution test, it was calibrated to 32 ℃. The refractive index of the series of solutions at 32 ℃ can be converted according to the following formula, and the arrangement is shown in Table 2:
n2＝n1-0.0004(t2-t1)
wherein n is1Refers to a standard refractive index; n is2Refers to the refractive index after calibration; t is t2Refers to the end temperature at which the refractive index is measured; t is t1Refers to the starting temperature at which the refractive index is measured.
TABLE 232 deg.C sodium chloride solution refractive index as a function of concentration
Second, influence of medium refractive index on iris position
The medium's influence on the iris position is mainly reflected in the refraction angle, and the data records of the red and violet angles of the iris under different refractive indexes are shown in table 3; and, with the mass fraction of NaCl as the abscissa and the deflection angle as the ordinate, plot 3 shows: it can be seen from the figure that as the refractive index of the medium increases (mass fraction of NaCl increases), the refraction angles of both red light and violet light increase, and the rate of change of the violet light angle with the refractive index is slightly greater than that of the red light. Because the angle variation range is not too large, the two can be regarded as linear variation relation to the refraction ratio independently.
TABLE 3 relationship between the deflection angles of red and violet light and the concentration of NaCl
Refractive index calculation of three, red and violet light
The refractive indexes of red and violet light under different media are calculated by the following refractive index formula (2), and the mass fraction of the refractive index to NaCl is plotted as shown in FIG. 5
Wherein n denotes a refractive index; i refers to the refraction angle.
As can be seen from the figure, as the mass fraction of the NaCl solution increases, the refractive indexes of red light and purple light are increased and then decreased; the red light is less affected by the change of the mass fraction, and the violet light is more affected by the mass fraction.
Fourthly, calculating the dispersion ratio
In this experiment, the dispersion ratio is mainly expressed by the difference between the refractive indices of red and violet light. The larger the difference between the red light and the purple light, the dispersion of the red light and the purple light (which can be extended to each color light in the same way) is wider, i.e. the dispersion degree is better. FIG. 4 shows the difference between the dispersion ratios of the two solutions as a function of the mass fraction of the NaCl solution; as can be seen from the figure, the difference between the refractive indexes of the two lights is the smallest when the mass fraction of NaCl is 10%, i.e., the dispersion effect is the worst; the dispersion ratio decreased and then increased with the increase in mass fraction of NaCl.
Fifth, the influence of the refractive index of the medium on the light intensity
In the experiment, the rainbow light intensity (all the illuminance of yellow green light) is measured by adopting an intensity meter under different NaCl mass fractions, and the rainbow light intensity shows regular change under different refractive indexes. The light intensity of the rainbow at different refractive indexes also shows regular changes. The variation of the light intensity to the transmittance is shown in fig. 5: it can be seen from the figure that as the refractive index of the medium increases, the dissipation of light in the medium increases and the intensity of the rainbow gradually decreases.
Finally, experimental errors were analyzed:
systematic error: the dispersion degree of the color band can not be completely separated due to the dispersion intensity of the device; or the water tank actually has a certain thickness, incident light firstly undergoes primary refraction at an air-glass interface, and then secondary refraction occurs at a glass-water interface (emergent light is the same as the principle), so that the angle measurement is influenced.
Uncertainty: the degree to which the measurement cannot be determined due to random errors is the class a uncertainty. The uncertainty in the results due to instrument error in the systematic error is the class B uncertainty. Here we only consider instrument errors.
In the embodiment of the present invention, the light reflecting member is an aluminum mirror 60, and a reflecting surface of the aluminum mirror 60 faces the middle portion of the transparent water tank 20 and serves to reflect the refracted light entering into the transparent water tank 20. In actual life, the boundary of the water drop is similar to a semi-transparent mirror, and certain light rays refract out of the water drop while the light is reflected, so that the light intensity of neon in nature is lower than that of rainbow. The experiment uses the total reflection aluminum mirror 60 to simulate the reflection process, so there is no obvious difference between neon and rainbow light intensity. The aluminum mirror 60 with proper size is used for replacing a plane mirror and is placed into the water tank, so that the phenomenon that light is reflected on the front surface and the rear surface of the plane mirror respectively to form two overlapped rainbow is avoided, and the influence on observation is reduced.
The aluminum mirror 60 is compared to a common glass mirror: the common glass plane mirror is made by coating a mirror material on one surface of glass, when light is reflected by the common glass plane mirror, the light can be reflected on the front surface and the rear surface of the glass, two overlapped rainbow images are generated, and observation and analysis are not facilitated. The aluminum mirror 60 avoids this phenomenon, and the light is totally reflected from the surface of the aluminum mirror 60 to form a clear rainbow image, which is beneficial to observation and analysis.
In the embodiment of the utility model, the rainbow measurement and control device further comprises a base 90 arranged below the objective table 50, universal wheels for walking are arranged at the bottom of the base 90, and the wheels can be freely adjusted and fixed without sliding or the wheels can slide by loosening a fixer, so that the whole device can be conveniently moved; a hard plastic non-slip mat for non-slip is placed on the base 90.
In the embodiment of the present invention, two rows of light-shielding paper are attached to the inner side wall of the transparent water tank 20 on the side close to the light source 10 in the height direction, a space for light emitted by the light source 10 to enter is formed between the two rows of light-shielding paper, and the incident point a of the light source 10 is located in the space. The shading paper is attached to the side wall of the water tank and used for shading redundant light, so that a beam of parallel light is incident into the transparent water tank 20 from a space reserved between two lines of shading paper, and the interference of stray light on experimental observation is reduced.
In the embodiment of the present invention, a water level line is carved on the inner sidewall of the transparent water tank 20, so that an experimenter can observe the water level condition in the transparent water tank 20.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The rainbow measurement and control device comprises a light source (10), a transparent water tank (20), a receiving light screen (30) and a spectrometer component, wherein the light source (10), the transparent water tank (20), the receiving light screen (30) and the spectrometer component are sequentially arranged along the transmission direction of light, the spectrometer component is positioned between the transparent water tank (20) and the receiving light screen (30), the rainbow measurement and control device is characterized in that clear water or sodium chloride solution with gradient concentration is contained in the transparent water tank (20), a light reflecting piece used for reflecting light incident into the transparent water tank (20) is arranged in the transparent water tank (20), and the light reflecting piece is attached to the inner side wall of the transparent water tank (20) and is immersed in the clear water or the sodium chloride solution with gradient concentration; the receiving light screen (30) is used for receiving light refracted out of the transparent water tank (20) and measuring the area of the rainbow, and the spectrometer component is used for measuring the refraction angle of different colors of light in the rainbow band.
2. A rainbow measurement and control device as claimed in claim 1, wherein the side of the exit light path facing the rainbow of the light screen (30) is equipped with a holder for fixing coordinate paper on which the light refracted from the transparent water tank (20) can be displayed, and the area of each square on the coordinate paper is 1mm2。
3. A rainbow inspection and control device according to claim 1, characterized in that it further comprises a stage (50) located below the transparent water cylinder (20), said stage (50) being rotatable and adapted to adjust the horizontal balance of the spectrometer assembly.
4. A rainbow measurement and control device as claimed in claim 3, wherein said spectrometer assembly comprises an eyepiece (40), a dial and a support handle (41) mounted below said eyepiece (40), said eyepiece (40) being rotatably connected to said support handle (41) and being capable of rotating around the center of the objective table (50) so that the extension of the outgoing light rays emitted from said transparent water tank (20) intersects the position directly above the circle of the objective table (50).
5. A rainbow test control device as claimed in claim 3, further comprising a laser rangefinder on the stage (50) for determining the length of each segment of the rainbow light path.
6. A rainbow test control device according to claim 3, further comprising a base (90) disposed under the stage (50), wherein the base (90) is provided with universal wheels for walking at the bottom.
7. A rainbow test control device as claimed in claim 6, wherein a hard plastic mat is placed on the base (90).
8. A rainbow test control device as claimed in any one of claims 1 to 7, further comprising an intensity meter for measuring the intensity of the refracted light of the rainbow.
9. A rainbow measurement and control device as claimed in any of claims 1 to 7, wherein the transparent water jar (20) is made of acrylic glass.
10. A rainbow measurement and control device as claimed in any of claims 1 to 7, wherein two rows of light-blocking paper are attached to the inner wall of the cylinder on the side of the transparent water tank (20) close to the light source (10) along the height direction, and a space for light emitted by the light source (10) to enter is formed between the two rows of light-blocking paper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724544.0U CN216249690U (en) | 2021-11-08 | 2021-11-08 | Rainbow measuring and controlling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122724544.0U CN216249690U (en) | 2021-11-08 | 2021-11-08 | Rainbow measuring and controlling device |
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| CN216249690U true CN216249690U (en) | 2022-04-08 |
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| CN202122724544.0U Expired - Fee Related CN216249690U (en) | 2021-11-08 | 2021-11-08 | Rainbow measuring and controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995014A (en) * | 2022-06-29 | 2022-09-02 | 佛山科学技术学院 | Device for measuring deviation angle of rainbow and neon |
-
2021
- 2021-11-08 CN CN202122724544.0U patent/CN216249690U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995014A (en) * | 2022-06-29 | 2022-09-02 | 佛山科学技术学院 | Device for measuring deviation angle of rainbow and neon |
| CN114995014B (en) * | 2022-06-29 | 2024-06-07 | 佛山科学技术学院 | Rainbow and neon deflection angle measuring device |
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