Underwater object imaging demonstration instrument

Abstract

The invention relates to the technical field of experiment teaching aids, and discloses an underwater object imaging demonstration instrument, which comprises a base and a connecting bottom plate, the top of the base is fixedly connected with a water storage tank, the water storage tank is rotatably connected with a connecting shaft, the inner side surface of the connecting shaft is fixedly connected with a limiting disc, and the inner side surface of the limiting disc is fixedly connected with a connecting chassis. The top of the connecting base plate is movably connected with a connecting ruler disc, the top of the connecting ruler disc is provided with a fixing block, the side face of the connecting base plate is fixedly connected with a spring damper, the side face of the spring damper is fixedly connected with a connecting plate, and the side face of the connecting plate is fixedly connected with a connecting side plate; the device is provided with the connecting side plate, the connecting plate and the spring damper, the position is convenient to adjust, mounting and dismounting are more convenient, the position of an object and the imaging position of the object in water in the experiment process can be observed at the same time through the device, and the device is simple in principle, obvious in effect, good in visibility and rich in interestingness.

Description

Technical Field

[0001] The invention relates to the technical field of experimental teaching aids, in particular to an underwater object imaging demonstrator. Background Art

[0002] Light waves are electromagnetic waves of a specific frequency band. During the propagation process, light has two components perpendicular to the propagation direction: the electric field component and the magnetic field component. When the electric field component interacts with the atoms in the medium, it causes the polarization of the electrons, which causes the relative displacement of the electron cloud and the center of gravity of the atoms. As a result, part of the energy is absorbed, and at the same time, the speed of light in the medium is slowed down, and the direction changes, resulting in refraction. The refraction of light refers to the change in the propagation direction of light when it is obliquely incident from one medium to another, so that the light is deflected at the junction of different media (the deflection angle of light in the air is the largest).

[0003] Currently, in experiments, when observing the imaging process of objects in water, due to the refraction of light, the image and the object in water cannot be observed at the same time, which affects the observer's visual experience and makes it difficult to fully understand the relationship between the image of the object in water and the actual object. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an underwater object imaging demonstrator to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: an underwater object imaging demonstrator, comprising a base and a connecting bottom plate, the top of the base is fixedly connected to a water tank, the water tank is rotatably connected to a connecting shaft, the inner side surface of the connecting shaft is fixedly connected to a limiting disk, the inner side surface of the limiting disk is fixedly connected to a connecting bottom plate, the top of the connecting bottom plate is movably connected to a connecting ruler disk, the top of the connecting ruler disk is provided with a fixing block, the side surface of the connecting bottom plate is fixedly connected to a spring damper, the side surface of the spring damper is fixedly connected to a connecting plate, and the side surface of the connecting plate is fixedly connected to a connecting side plate.

[0006] Furthermore, a sliding rod is movably connected to the top of the water tank, a movable rod is movably connected to the sliding rod, and a pointing needle is fixedly connected to the bottom side of the movable rod.

[0007] Furthermore, a connecting disk is rotatably connected to the outer side surface of the connecting shaft, a connecting block is fixedly connected to the side surface of the connecting disk, a semi-mirror is arranged on the inner side surface of the connecting block, the semi-mirror and the connecting block are connected together by bolts and nuts, a rectangular groove is provided on the top of the limiting disk and the fixing block, the bottom of the semi-mirror is embedded in the rectangular groove on the top of the limiting disk and the fixing block, and is movably connected to the limiting disk and the fixing block, a movable knob is fixedly connected to the side surface of the connecting shaft, the connecting shaft and the movable knob are both arranged on the water tank and rotatably connected to the water tank, and when in use, the connecting scale disk can be placed on the connecting chassis fixedly connected to the side surface of the limiting disk, and the deflection angle of the connecting scale disk can be adjusted by the movable knob.

[0008] Furthermore, an observation side panel is fixedly connected to one side surface of the water tank. The observation side panel is a piece of transparent glass, and graph paper is fixedly connected to the inner wall thereof. The graph paper is wrapped with a PET film. The PET film has good waterproofness and light transmittance, which makes observation more convenient and can also protect the graph paper.

[0009] Furthermore, the connecting ruler plate is provided with a plurality of connecting holes, and the distance between each adjacent connecting hole is equal. The fixing block and the connecting ruler plate are connected by bolts and nuts, and the length of the two ends of the connecting ruler plate from the connecting shaft can be adjusted during use.

[0010] Furthermore, a movable rail is fixedly connected to the top of the base, a slider is movably connected to the movable rail, a movable block is rotatably connected to the top of the slider, and a pointer is fixedly connected to the inner side of the movable block.

[0011] Furthermore, a connecting platform is fixedly connected to the top of the connecting base plate, and a diode is fixedly connected to the top of the connecting base plate. When in use, the roller and the connecting side plate are docked at the tooth grooves on the connecting scale disk. At this time, the connecting base plate is fitted on the top of the connecting scale disk, and the connecting plate can be pressed inwardly with two fingers. The connecting plate squeezes the spring damper to one side of the connecting platform, and at the same time, the connecting side plate on the outer side of the connecting plate is away from the side of the connecting scale disk. At this time, the connecting base plate can be pushed to make the connecting base plate, together with the connecting platform and the diode fixed thereon, slide on the connecting scale disk to adjust the position. After reaching the specified position, the connecting plate is released, and the connecting side plate is fitted to the inner side of the connecting scale disk through the rebound of the spring damper, thereby fixing the diode.

[0012] Furthermore, a tooth groove is provided on the connecting ruler plate, a roller is rotatably connected to the side of the connecting bottom plate, the roller and the connecting side plate are arranged at the tooth groove and movably connected to the connecting ruler plate, and a scale is arranged on the side of the connecting ruler plate.

[0013] When in use, install the two connecting base plates at the two ends of the connecting ruler disk respectively, install the connecting base plates to the tooth grooves on the connecting ruler disk, turn on the switch, slide the slider on the movable rail, use the movable block and pointer connected by rotation on the slider to move to the position of the diode in the water, determine the position of the diode in the water on the graph paper on the observation side panel, turn on the diode in front of the half mirror, and overlap the image of the diode in front of the half mirror with the image of the diode in the water until there is no parallax. The diode in front of the half mirror can be moved, and points are drawn and recorded at the same time. The position of the points is perpendicular to the position of the connecting ruler disk along the connecting ruler disk. After overlap, we read the position of the reference object.

[0014] The device has a simple principle and has the advantages of obvious effect, good visibility and strong interest. Observers can support the conclusions of theoretical analysis and experimental observation through personal operation, observation and experience, thereby deepening their impression.

[0015] Beneficial effects:

[0016] 1. The underwater object imaging demonstrator is provided with a connecting side plate, a connecting plate and a spring damper. During use, the connecting plate can be pressed to drive the connecting side plate to move inward, thereby making it easier to adjust the position and more convenient to install and disassemble.

[0017] 2. The underwater object imaging demonstrator can simultaneously observe the position of the object during the experiment and the position of the object's image in the water. The device has a simple principle, obvious effect, good visibility and strong interest. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an underwater object imaging demonstrator proposed by the present invention;

[0019] Figure 2 A side view of the overall structure of an underwater object imaging demonstrator proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of an underwater object imaging demonstrator proposed by the present invention;

[0021] Figure 4 A schematic diagram of the structure of a base plate connected to an underwater object imaging demonstrator proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the experimental structure of an underwater object imaging demonstrator proposed by the present invention.

[0023] In the figure: 1. base; 2. water tank; 3. slide bar; 4. movable bar; 5. connecting shaft; 6. limit plate; 7. connecting bottom plate; 8. movable knob; 9. connecting plate; 10. connecting ruler plate; 11. tooth groove; 12. half mirror; 13. connecting block; 14. connecting hole; 15. fixed block; 16. movable rail; 17. slider; 18. movable block; 19. pointer; 20. observation side plate; 21. connecting bottom plate; 22. roller; 23. connecting side plate; 24. connecting plate; 25. spring damper; 26. diode; 27. connecting table. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 4 A underwater object imaging demonstrator comprises a base 1 and a connecting bottom plate 21, a water tank 2 is fixedly connected to the top of the base 1, a connecting shaft 5 is rotatably connected to the water tank 2, a limiting plate 6 is fixedly connected to the inner side of the connecting shaft 5, a connecting chassis 7 is fixedly connected to the inner side of the limiting plate 6, a connecting ruler plate 10 is movably connected to the top of the connecting chassis 7, a fixing block 15 is arranged on the top of the connecting ruler plate 10, a spring damper 25 is fixedly connected to the side of the connecting bottom plate 21, a connecting plate 24 is fixedly connected to the side of the spring damper 25, and a connecting side plate 23 is fixedly connected to the side of the connecting plate 24.

[0027] The top of the water storage tank 2 is movably connected with a slide bar 3, the slide bar 3 is movably connected with a movable bar 4, and the bottom side of the movable bar 4 is fixedly connected with a pointing needle.

[0028] A connecting disk 9 is rotatably connected to the outer surface of the connecting shaft 5, and a connecting block 13 is fixedly connected to the side of the connecting disk 9. A semi-mirror 12 is arranged on the inner surface of the connecting block 13. The semi-mirror 12 and the connecting block 13 are connected together by bolts and nuts. A rectangular groove is provided on the top of the limiting disk 6 and the fixing block 15. The bottom of the semi-mirror 12 is embedded in the rectangular groove on the top of the limiting disk 6 and the fixing block 15, and is movably connected to the limiting disk 6 and the fixing block 15. A movable knob 8 is fixedly connected to the side of the connecting shaft 5. The connecting shaft 5 and the movable knob 8 are both arranged on the water tank 2 and rotatably connected to the water tank 2. When in use, the connecting ruler disk 10 can be placed on the connecting chassis 7 fixedly connected to the side of the limiting disk 6, and the deflection angle of the connecting ruler disk 10 can be adjusted by the movable knob 8.

[0029] An observation side panel 20 is fixedly connected to one side surface of the water tank 2. The observation side panel 20 is a piece of transparent glass, and a graph paper is fixedly connected to the inner wall thereof. The graph paper is wrapped with a PET film, which has good waterproofness and light transmittance, making observation more convenient and protecting the graph paper.

[0030] The connecting ruler plate 10 is provided with a plurality of connecting holes 14, and the distance between each adjacent connecting hole 14 is equal. The fixing block 15 and the connecting ruler plate 10 are connected by bolts and nuts. When in use, the distance between the two ends of the connecting ruler plate 10 and the connecting shaft 5 can be adjusted.

[0031] A movable rail 16 is fixedly connected to the top of the base 1 , a slider 17 is movably connected to the movable rail 16 , a movable block 18 is rotatably connected to the top of the slider 17 , and a pointer 19 is fixedly connected to the inner side of the movable block 18 .

[0032] The top of the connecting base plate 21 is fixedly connected with a connecting platform 27, and the top of the connecting platform 27 is fixedly connected with a diode 26. When in use, the roller 22 and the connecting side plate 23 are docked at the tooth groove 11 on the connecting scale disk 10. At this time, the connecting base plate 21 is attached to the top of the connecting scale disk 10. The connecting plate 24 can be pressed inwardly with two fingers, and the connecting plate 24 squeezes the spring damper 25 to the side of the connecting platform 27. At the same time, the connecting side plate 23 on the outer side of the connecting plate 24 is away from the side of the connecting scale disk 10. At this time, the connecting base plate 21 can be pushed so that the connecting base plate 21, together with the connecting platform 27 and the diode 26 fixed thereon, slides on the connecting scale disk 10 to adjust the position. After reaching the specified position, the connecting plate 24 is released, and the connecting side plate 23 is attached to the inner side of the connecting scale disk 10 through the rebound of the spring damper 25, thereby achieving the fixation of the diode 26.

[0033] Embodiment 2

[0034] See also Figure 1-Figure 5 A tooth groove 11 is provided on the connecting ruler disk 10, and a roller 22 is rotatably connected to the side of the connecting bottom plate 21. The roller 22 and the connecting side plate 23 are both arranged at the tooth groove 11 and movably connected to the connecting ruler disk 10. A scale is provided on the side of the connecting ruler disk 10.

[0035] When in use, the two connecting bottom plates 21 are respectively installed at the two ends of the connecting ruler disk 10, and the connecting bottom plates 21 are installed to the tooth grooves 11 on the connecting ruler disk 10. The switch is turned on, and the slider 17 slides on the movable rail 16. The movable block 18 and the pointer 19 connected by rotation on the slider 17 are moved to the position of the diode in the water. The position of the diode 26 in the water is determined on the graph paper on the observation side plate 20, and the diode 26 in front of the semi-mirror 12 is turned on. The image of the diode 26 in front of the semi-mirror 12 and the image formed by the diode 26 in the water are overlapped until there is no parallax. The diode 26 in front of the semi-mirror 12 can be moved, and points are drawn and recorded at the same time. The position of the points is perpendicular to the position of the connecting ruler disk 10 along the position of the connecting ruler disk 10. After overlap, we read the position of the reference object. In this process, the device design conforms to the students' cognitive laws, can cleverly solve the contradiction that the image and the object in the water cannot be observed at the same time, and can present them in the field of vision at the same time, realizing the visualization of the position relationship between the image and the object in the water.

[0036] The device has a simple principle, obvious effect, good visibility, and strong interest. Students can support the conclusions of theoretical analysis and experimental observation by operating, observing and experiencing it with their own eyes, thereby deepening their impression.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater object imaging demonstrator, comprising a base (1) and a connecting bottom plate (21), characterized in that: The top of the base (1) is fixedly connected to a water tank (2), the water tank (2) is rotatably connected to a connecting shaft (5), the inner side surface of the connecting shaft (5) is fixedly connected to a limit plate (6), the inner side surface of the limit plate (6) is fixedly connected to a connecting chassis (7), the top of the connecting chassis (7) is movably connected to a connecting ruler plate (10), the top of the connecting ruler plate (10) is provided with a fixing block (15), the side surface of the connecting bottom plate (21) is fixedly connected to a spring damper (25), the side surface of the spring damper (25) is fixedly connected to a connecting plate (24), and the side surface of the connecting plate (24) is fixedly connected to a connecting side plate (23).

2. The underwater object imaging demonstrator according to claim 1, characterized in that: The top of the water storage tank (2) is movably connected to a sliding rod (3), the sliding rod (3) is movably connected to a movable rod (4), and a pointing needle is fixedly connected to the bottom side of the movable rod (4).

3. The underwater object imaging demonstrator according to claim 1, characterized in that: A connecting plate (9) is rotatably connected to the outer surface of the connecting shaft (5), a connecting block (13) is fixedly connected to the side of the connecting plate (9), a semi-mirror (12) is arranged on the inner surface of the connecting block (13), the semi-mirror (12) and the connecting block (13) are connected together by bolts and nuts, the tops of the limiting plate (6) and the fixing block (15) are provided with rectangular grooves, the bottom of the semi-mirror (12) is embedded in the rectangular grooves on the tops of the limiting plate (6) and the fixing block (15), and is movably connected to the limiting plate (6) and the fixing block (15), the side of the connecting shaft (5) is fixedly connected to a movable knob (8), the connecting shaft (5) and the movable knob (8) are both arranged on the water tank (2) and are rotatably connected to the water tank (2).

4. The underwater object imaging demonstrator according to claim 2, characterized in that: An observation side plate (20) is fixedly connected to one side surface of the water storage tank (2). The observation side plate (20) is a piece of transparent glass, and a grid paper is fixedly connected to the inner wall thereof. The grid paper is wrapped with a PET film.

5. The underwater object imaging demonstrator according to claim 1, characterized in that: The connecting ruler plate (10) is provided with a plurality of connecting holes (14), and the distance between each adjacent connecting hole (14) is equal. The fixing block (15) and the connecting ruler plate (10) are connected by bolts and nuts.

6. The underwater object imaging demonstrator according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a movable rail (16), the movable rail (16) is movably connected to a slider (17), the top of the slider (17) is rotatably connected to a movable block (18), and the inner side of the movable block (18) is fixedly connected to a pointer (19).

7. The underwater object imaging demonstrator according to claim 1, characterized in that: A connection platform (27) is fixedly connected to the top of the connection base plate (21), and a diode (26) is fixedly connected to the top of the connection platform (27).

8. The underwater object imaging demonstrator according to claim 7, characterized in that: The connecting ruler disc (10) is provided with a tooth groove (11), and a roller (22) is rotatably connected to the side of the connecting bottom plate (21). The roller (22) and the connecting side plate (23) are both arranged at the tooth groove (11) and movably connected to the connecting ruler disc (10), and a scale is arranged on the side of the connecting ruler disc (10).

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