An integrated device for teaching demonstration of single-slit diffraction and double-slit interference experiments
A technology of double-slit interference and single-slit diffraction, which is applied in the field of teaching and demonstration equipment, can solve the problems of inconvenient demonstration, difficult promotion of demonstration equipment, and influence on experimental results, and achieve clear display, convenient use of teaching and demonstration, and good demonstration effects
Active Publication Date: 2021-02-09
泰安高新教育服务有限公司
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Problems solved by technology
[0003] Both single-slit diffraction and double-slit interference are an important knowledge point in physics, and they are also relatively basic physical experiments in the process of physics teaching. The discussion of the law of light intensity distribution and spacing is an important and difficult point. Most of them focus on qualitative observation, that is, using laser light as the light source, directly irradiating the single-slit or double-slit device, and then using the human eye to observe on the observation screen. The existing demonstrator is not easy to promote in classroom teaching, and it is inconvenient to demonstrate. Affect the experimental effect
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Embodiment 1
[0036] see Figure 1-8 , an integrated device for demonstration of single-slit diffraction and double-slit interference experiments for teaching, comprising a first base 1 and a second base 2, the lower end surfaces of the first base 1 and the second base 2 are fixedly connected with threaded rods 3, and the threaded rods 3 are screw-connected with a nut seat 4, and the first base 1 and the second base 2 are fixedly connected to one end of the first base 1 and the second base 2 respectively with a first connecting plate 5 and a second connecting plate 6, between the first connecting plate 5 and the second connecting plate 6 The upper end surface of the first base 1 is fixedly connected with the receiving seat 8 on the side away from the second base 2, the upper end surface of the receiving base 8 is fixedly connected with the laser light source 9, and the receiving seat 8 is close to the second base 2 One side is fixedly connected with a support rod 10, the support rod 10 is p...
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The invention discloses an integrated device for teaching single-slit diffraction and double-slit interference experiments and demonstrations, which comprises a first base and a second base, and the lower end surfaces of the first base and the second base are fixedly connected with threaded rods. The threaded rods are all screwed with nut seats, and the first base and the second base are fixedly connected with a first connecting plate and a second connecting plate at one end close to each other, between the first connecting plate and the second connecting plate are connected by sliding through the first chute. In the present invention, an adjustment part is provided, and by manually turning the swivel ring, the sliding column slides in the arc-shaped chute, and at the same time, the sliding column slides in the slide rail, driving the fan-shaped baffles to move until the six fan-shaped baffles cooperate with each other Completely closed or fully opened, this device has a good demonstration effect, and can vividly show the process and changes of single-slit diffraction and double-slit interference of light.
Description
technical field [0001] The invention relates to the technical field of teaching demonstration tools, in particular to an integrated device for teaching demonstration of single-slit diffraction and double-slit interference experiments. Background technique [0002] Single-slit diffraction is a phenomenon in which light waves encounter obstacles during propagation, and light waves will continue to propagate around obstacles. Diffraction is most pronounced when the wavelength is comparable to or larger than the size of the slit, hole or obstacle. Double slit interference is to project parallel monochromatic light onto a baffle with two slits. The slits are very close to each other. The same wave sources are called coherent wave sources, and the light emitted by them superimposes on each other in the space behind the baffle, and interference occurs. [0003] Both single-slit diffraction and double-slit interference are an important knowledge point in physics, and they are also...
Claims
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IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 翟慧慧
Owner 泰安高新教育服务有限公司