Young's double-slit interference digital experiment device based on Internet of Things

Abstract

The utility model discloses a Young's double-slit interference digital experiment device based on the Internet of Things, which comprises a bottom plate, an LED light source, a single-slit sheet, a switchable double-slit sheet, a network plug flow camera, a main control board, a network switch and an upper computer, and the LED light source, the single-slit sheet, the switchable double-slit sheet and the network plug flow camera are sequentially arranged on the bottom plate from left to right; a first stepping motor for controlling the LED light source is mounted on the bottom plate; the device can carry out real experiment operation on line, is convenient and fast, has obvious phenomena, can provide a platform for preview, review experiment and autonomous learning exploration for middle school students, greatly facilitates double-slit interference experiment teaching, and provides a new idea for education digitization.

Description

Technical Field

[0001] The utility model relates to a Young's double-slit interference remote experimental device, in particular to a Young's double-slit interference digital experimental device suitable for online control. Background Art

[0002] Experimental teaching is becoming more and more important in middle school teaching, and Young's double-slit interference experiment is an important experiment in middle school wave optics experiments, occupying an important position. At present, most of the teaching experiments of light interference in middle school physical optics are presented through videos, which have problems such as insufficient experimental equipment, poor experimental environment, unclear experimental phenomena, and few hands-on experiments for students, which is not conducive to students' preview review and independent experimental exploration. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a platform for conducting real experimental operations online, which is convenient and fast, with obvious phenomena, and can provide middle school students with a platform for previewing, reviewing experiments and independent learning and exploration, which greatly facilitates the double-slit interference experiment teaching and provides new ideas for digital education.

[0004] The utility model is realized by the following technical solutions:

[0005] A Young's double-slit interference digital experiment device based on the Internet of Things comprises a bottom plate, an LED light source, a single slit, a switchable double slit, a network streaming camera, a main control board, a network switch and a host computer, wherein the LED light source, the single slit, the switchable double slit and the network streaming camera are arranged on the bottom plate from left to right in sequence; a first stepper motor for controlling the LED light source is installed on the bottom plate, a horizontal drive unit for driving the switchable double slit to move horizontally is installed on the bottom plate, a vertical drive unit and a vertical drive unit installed through the vertical drive unit are also installed on the bottom plate, and the network streaming camera is installed through the vertical drive unit; the network streaming camera, the first stepper motor, the horizontal drive unit, the vertical drive unit and the vertical drive unit are connected through the main control board; the main control board is connected to the host computer network through the network switch; an optical bracket is arranged at the bottom of the single slit.

[0006] Preferably, the transverse driving unit includes a transverse frame, a transverse screw installed for rotation through the transverse frame, and a second stepper motor installed outside the transverse frame and driving the transverse screw to rotate, the second stepper motor is connected to the main control board, a transverse slide is installed through the transverse screw, a third stepper motor is installed through the transverse slide, the switchable double slit is installed at the output end of the third stepper motor, and the third stepper motor is connected to the main control board.

[0007] Preferably, the longitudinal drive unit includes a longitudinal frame, a longitudinal screw rotatably installed in the longitudinal frame, and a fourth stepper motor installed at the rear end of the longitudinal frame and driving the longitudinal screw to rotate. In the longitudinal frame, the longitudinal screw cooperates with the longitudinal slide, and the vertical drive unit is installed through the longitudinal slide, and the fourth stepper motor is connected to the main control board.

[0008] Preferably, the vertical drive unit includes a vertical frame, and a vertical screw rotatably installed in the vertical frame, a fifth stepper motor is installed at the bottom of the vertical frame, the fifth stepper motor is fixed to the top of the longitudinal slide, and a vertical slide is cooperated with the vertical screw in the vertical frame, the network streaming camera is installed through the vertical slide, and the fifth stepper motor is connected to the main control board.

[0009] The main control board and the host computer website are connected through the LwIP protocol, thereby realizing the control chain of the host computer-main control board-motor, and finally achieving the purpose of the network control experiment.

[0010] The LED light source is a red, green, blue and white four-color LED light source with good monochromaticity, high luminous efficiency and small light concentration, which can make the experimental phenomenon more obvious. The light source is connected to the motor, and the host computer can switch the light color through the main control board to demonstrate the comparison experiment of the influence of different light wavelengths on interference fringes.

[0011] The switchable double-slit sheet has three sets of double-slits with different spacings. It is connected to a motor, and can realize double-slit switching and double-slit angle fine-tuning operations on the host computer, which is used to demonstrate the comparative experiment of the influence of different double-slit spacings on interference fringes. The double-slit sheet is also connected to a stepper motor, and the host computer can adjust the horizontal position of the double-slit sheet through the main control board to observe the clearest interference fringes.

[0012] The network streaming camera is connected to the network through a network switch, and the host computer can observe the experimental phenomenon on the website and observe the fringe spacing through the horizontal fine adjustment of the camera and the movement of the vernier caliper.

[0013] An experimental method for a Young's double-slit interference digital experimental device based on the Internet of Things, including entering the platform, booking an experiment and then opening it, selecting the color of the LED light source through client operations, selecting the double slit, adjusting the horizontal and vertical positions of the observation camera, adjusting the horizontal position of the double slit, and fine-tuning the horizontal position of the camera after observing the fringe phenomenon and observing the amount of fringe movement through the graticule, while recording the vernier caliper reading, and then calculating the fringe spacing; switching the double slit and the light color can respectively demonstrate the effects of different light wavelengths and different double slit spacings on the interference fringes.

[0014] The remote control experiment is to select the interference experiment on the remote physical laboratory platform, set the light source color through the client operation, select the double slit width, adjust the position of the double slit and the camera, so that each component reaches the appropriate position, and the experimental phenomenon is received by the network streaming camera and displayed on the client through the network platform.

[0015] The beneficial effects of the utility model are as follows: the utility model can conduct double-slit interference experiments remotely online, the operation is convenient and quick, and the experimental phenomena are clear and obvious. It can not only improve the quality of experimental teaching for middle schools, but also provide high-quality experimental teaching for students in remote areas, and has great social promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the device structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the switchable double slit sheet of the utility model;

[0019] Figure 3 This is the experimental effect diagram of the utility model;

[0020] Figure 4 The following is a schematic diagram of the installation of each drive unit. DETAILED DESCRIPTION

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0022] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0023] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 and Figure 4 The Young's double-slit interference digital experimental device based on the Internet of Things shown in the figure comprises a bottom plate 121, an LED light source 1, a single slit sheet 2, a switchable double slit sheet 3, a network streaming camera 4, a main control board 11, a network switch 12 and a host computer 13, wherein the LED light source 1, the single slit sheet 2, the switchable double slit sheet 3 and the network streaming camera 4 are arranged on the bottom plate 121 from left to right; a first stepper motor 5 for controlling the LED light source 1 is installed on the bottom plate 121, and a first stepper motor 5 for driving the switchable double slit sheet is installed on the bottom plate 121. The slit 3 has a transverse driving unit that moves transversely, and a longitudinal driving unit is also installed on the bottom plate 121, and a vertical driving unit installed through the longitudinal driving unit, and the network streaming camera 4 is installed through the vertical driving unit; the network streaming camera 4, the first stepper motor 5, the transverse driving unit, the longitudinal driving unit and the vertical driving unit are connected through the main control board 11; the main control board 11 is connected to the host computer 13 through the network switch 12; an optical bracket 10 is provided at the bottom of the single slit 2.

[0027] Switchable double slits Figure 2 , interference fringe effect at white light wavelength Figure 3 .

[0028] When operating, first enter the remote laboratory platform and make an appointment for a time period. After starting the experiment, select the color of the LED light source, select the double slit width, change the horizontal position of the double slit and the horizontal and vertical positions of the camera to make each component reach the appropriate position through client operation. The experimental phenomenon is received by the network streaming camera and displayed on the client through the network platform. Users can intuitively observe the changes in the interference fringes generated by different double slit spacings or different wavelengths in the experiment, and can also quantitatively measure the number of interference fringes in a distance, thereby calculating the wavelength of light.

[0029] See also Figure 4 The transverse driving unit includes a transverse frame 131, a transverse screw 141 rotatably installed through the transverse frame 131, and a second stepper motor 7 installed outside the transverse frame 131 and driving the transverse screw 141 to rotate, the second stepper motor 7 is connected to the main control board 11, a transverse slide 151 is installed through the transverse screw 141, a third stepper motor 6 is installed through the transverse slide 151, the switchable double slit 3 is installed at the output end of the third stepper motor 6, and the third stepper motor 6 is connected to the main control board 11.

[0030] See also Figure 4 The longitudinal drive unit includes a longitudinal frame 132, a longitudinal screw 142 rotatably installed in the longitudinal frame 132, and a fourth stepper motor 8 installed at the rear end of the longitudinal frame 132 and driving the longitudinal screw 142 to rotate. In the longitudinal frame 132, the longitudinal screw 142 cooperates with the longitudinal slide 152, and the vertical drive unit is installed through the longitudinal slide 152, and the fourth stepper motor 8 is connected to the main control board 11.

[0031] See also Figure 4 The vertical drive unit includes a vertical frame 133, and a vertical screw 143 rotatably installed in the vertical frame 133. A fifth stepper motor 9 is installed at the bottom of the vertical frame 133. The fifth stepper motor 9 is fixed to the top of the longitudinal slide 152. In the vertical frame 133, a vertical slide 153 is cooperated with the vertical screw 143. The network streaming camera 4 is installed through the vertical slide 153, and the fifth stepper motor 9 is connected to the main control board 11.

[0032] The main control board and the host computer website are connected through the LwIP protocol, thereby realizing the control chain of the host computer-main control board-motor, and finally achieving the purpose of the network control experiment.

[0033] The LED light source is a red, green, blue and white four-color LED light source with good monochromaticity, high luminous efficiency and small light concentration, which can make the experimental phenomenon more obvious. The light source is connected to the motor, and the host computer can switch the light color through the main control board to demonstrate the comparison experiment of the influence of different light wavelengths on interference fringes.

[0034] The switchable double-slit sheet has three sets of double-slits with different spacings. It is connected to a motor, and can realize double-slit switching and double-slit angle fine-tuning operations on the host computer, which is used to demonstrate the comparative experiment of the influence of different double-slit spacings on interference fringes. The double-slit sheet is also connected to a stepper motor, and the host computer can adjust the horizontal position of the double-slit sheet through the main control board to observe the clearest interference fringes.

[0035] The network streaming camera is connected to the network through a network switch, and the host computer can observe the experimental phenomenon on the website and observe the fringe spacing through the horizontal fine adjustment of the camera and the movement of the vernier caliper.

[0036] An experimental method for a Young's double-slit interference digital experimental device based on the Internet of Things, including entering the platform, booking an experiment and then opening it, selecting the color of the LED light source through client operations, selecting the double slit, adjusting the horizontal and vertical positions of the observation camera, adjusting the horizontal position of the double slit, and fine-tuning the horizontal position of the camera after observing the fringe phenomenon and observing the amount of fringe movement through the graticule, while recording the vernier caliper reading, and then calculating the fringe spacing; switching the double slit and the light color can respectively demonstrate the effects of different light wavelengths and different double slit spacings on the interference fringes.

[0037] The remote control experiment is to select the interference experiment on the remote physical laboratory platform, set the light source color through the client operation, select the double slit width, adjust the position of the double slit and the camera, so that each component reaches the appropriate position, and the experimental phenomenon is received by the network streaming camera and displayed on the client through the network platform.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A digital experimental device for Young's double-slit interference based on the Internet of Things, characterized by: The invention comprises a bottom plate (121), an LED light source (1), a single slit sheet (2), a switchable double slit sheet (3), a network streaming camera (4), a main control board (11), a network switch (12) and a host computer (13), wherein the LED light source (1), the single slit sheet (2), the switchable double slit sheet (3) and the network streaming camera (4) are arranged on the bottom plate (121) in sequence from left to right; a first stepper motor (5) for controlling the LED light source (1) is installed on the bottom plate (121); and a motor for driving the switchable double slit sheet (3) to move horizontally is installed on the bottom plate (121). A horizontal driving unit is movable in the direction of the horizontal direction, a vertical driving unit is also installed on the bottom plate (121), and a vertical driving unit is installed through the vertical driving unit, and the network streaming camera (4) is installed through the vertical driving unit; the network streaming camera (4), the first stepper motor (5), the horizontal driving unit, the vertical driving unit and the vertical driving unit are connected through the main control board (11); the main control board (11) is connected to the host computer (13) through the network switch (12); and an optical bracket (10) is arranged at the bottom of the single slit sheet (2).

2. The Young's double-slit interference digital experimental device based on the Internet of Things according to claim 1 is characterized by: The transverse driving unit comprises a transverse frame (131), a transverse screw rod (141) rotatably mounted via the transverse frame (131), and a second stepping motor (7) mounted outside the transverse frame (131) and driving the transverse screw rod (141) to rotate, the second stepping motor (7) being connected to the main control board (11), a transverse slide table (151) being mounted via the transverse screw rod (141), a third stepping motor (6) being mounted via the transverse slide table (151), the switchable double slit sheet (3) being mounted at the output end of the third stepping motor (6), and the third stepping motor (6) being connected to the main control board (11).

3. The Young's double-slit interference digital experimental device based on the Internet of Things according to claim 2 is characterized by: The longitudinal drive unit comprises a longitudinal frame (132), a longitudinal screw rod (142) rotatably mounted in the longitudinal frame (132), and a fourth stepper motor (8) mounted at the rear end of the longitudinal frame (132) and driving the longitudinal screw rod (142) to rotate. In the longitudinal frame (132), the longitudinal screw rod (142) cooperates with a longitudinal slide (152), and the vertical drive unit is installed through the longitudinal slide (152). The fourth stepper motor (8) is connected to the main control board (11).

4. The Young's double-slit interference digital experimental device based on the Internet of Things according to claim 3 is characterized by: The vertical drive unit comprises a vertical frame (133), and a vertical screw rod (143) rotatably mounted in the vertical frame (133); a fifth stepper motor (9) is mounted at the bottom of the vertical frame (133); the fifth stepper motor (9) is fixed to the top of the longitudinal slide (152); a vertical slide (153) is matched with the vertical screw rod (143) in the vertical frame (133); the network streaming camera (4) is mounted via the vertical slide (153); and the fifth stepper motor (9) is connected to the main control board (11).

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