CN221304128U - Simple harmonic motion demonstration device - Google Patents
Simple harmonic motion demonstration device Download PDFInfo
- Publication number
- CN221304128U CN221304128U CN202323188704.XU CN202323188704U CN221304128U CN 221304128 U CN221304128 U CN 221304128U CN 202323188704 U CN202323188704 U CN 202323188704U CN 221304128 U CN221304128 U CN 221304128U
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- Prior art keywords
- conveyor belt
- laser pen
- harmonic motion
- simple harmonic
- support frame
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- 239000000463 material Substances 0.000 claims abstract description 7
- 101000579646 Penaeus vannamei Penaeidin-1 Proteins 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a simple harmonic motion demonstration device which comprises a laser pen, a conveyor belt, a base and a support frame, wherein the support frame is arranged on the base, the laser pen is hung on the support frame through two strings, the conveyor belt is positioned right below the laser pen, a belt body of the conveyor belt is made of optically variable materials and is drawn with a coordinate grid, and a power supply for driving the conveyor belt is arranged at the bottom of the conveyor belt. The demonstration device of the utility model draws images in real time by using the laser pen and the color-changing material conveyor belt, and the quality of the pendulum is not changed.
Description
Technical Field
The utility model relates to the technical field of physical experiments, in particular to a simple harmonic motion demonstration device.
Background
The simple harmonic motion is the most basic vibration, has great significance for understanding the phenomena of mechanical vibration, interference of light waves and sound waves, diffraction and the like, and has more demonstration instruments for demonstrating the simple harmonic motion of an object, wherein the most common demonstration instruments for demonstrating the simple harmonic motion are sand pendulum and ink pendulum, but the sand pendulum has the problems of uneven sand leakage, inadequately oversized swinging angle, unstable operation, easy change into a 'conical pendulum', and the like, and the ink pendulum has the defects of ink splashing, difficult cleaning, unsmooth drawing of a graph line and the like, and the two have the self-quality change in the motion process.
There are new presentation devices at present, but there are still general problems to be solved, such as: 1. the friction problem between the vibrator and the recording paper is difficult to solve; 2. the mass of the vibrator can change along with the movement; 3. because the dot mark is drawn on paper and is difficult to repeat after the experiment is performed once; 4. the equipment used for drawing the curve cannot ensure uniform speed, so that the drawn image is not standard, and the demonstration effect is poor; 5. the experimental equipment is complicated to manufacture or operate and is not concise.
Disclosure of Invention
Aiming at the technical defects, the utility model aims to provide a simple harmonic motion demonstration device, which solves the problems that the conventional demonstration device has inaccurate demonstration caused by friction force, cannot quantitatively observe images and is difficult to repeatedly draw drawing.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a simple harmonic motion demonstration device which comprises a laser pen, a conveyor belt, a base and a support frame, wherein the support frame is arranged on the base, the laser pen is hung on the support frame through two strings, the conveyor belt is positioned right below the laser pen, a belt body of the conveyor belt is made of a color-changing material and is drawn with a coordinate grid, and a power supply for driving the conveyor belt is arranged at the bottom of the conveyor belt.
Preferably, a lead weight is arranged on the laser pen.
Preferably, the conveyor belt is adjustable in speed.
The utility model has the beneficial effects that:
1. The laser pen and the color-changing material conveyor belt are utilized to draw images in real time, so that the images can be observed quantitatively, and the quality of the pendulum is not changed;
2. the speed of the conveyor belt is adjustable, and accurate speed data are provided;
3. The track on the conveyor belt becomes shallow gradually after drawing is finished, and disappears after about 2 minutes, so that the color change performance of the color change material is not affected, and the repeatability of the experiment is high;
4. the equipment has stable swing, clear images and strong visibility;
5. The experimental operation and data processing are simple and clear, and the effect is good.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a simple harmonic motion demonstration device according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a laser pen; 2. a conveyor belt; 3. a base; 4. and (5) supporting frames.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment 1, as shown in fig. 1, a simple harmonic motion presentation device, including laser pen 1, conveyer belt 2, base 3, support frame 4 sets up on base 3, laser pen 1 hangs on support frame 4 through two strings, conveyer belt 2 is located laser pen 1 directly under, the area body of conveyer belt 2 adopts the color change material, and has painted the coordinate check, conveyer belt 2 bottom is provided with the power that is used for driving conveyer belt 2.
Furthermore, the laser pen 1 is provided with lead drops, the quality of the pendulum is changed by increasing the quantity of the lead drops, and the period of the single pendulum is proved to be irrelevant to the quality.
Further, the conveyor belt 2 can be speed-regulated.
When the damping vibration demonstration device is used, the laser pen 1 is opened, the laser pen 1 is pulled to swing, after the swing is relatively stable, a power supply is turned on, the conveyor belt 2 is turned on, and the damping vibration and simple harmonic motion of the simple pendulum can be demonstrated by adjusting the speed to a proper speed;
The speed of the conveyor belt 2 can be regulated, and vibration images of the simple pendulum when the speeds of the conveyor belt 2 are different can be displayed in real time;
The cycloid length can be changed, and the relation between the period and the pendulum length can be qualitatively studied.
The experiment can be combined with the tracker software to process and analyze that the vibration image of the simple pendulum is a sine curve.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (3)
1. The utility model provides a simple harmonic motion presentation device, its characterized in that, includes laser pen, conveyer belt, base, support frame, the support frame sets up on the base, the laser pen hangs on the support frame through two strings, the conveyer belt is located the laser pen under, the area body adoption light change material of conveyer belt, and the drawing has the coordinate check, the conveyer belt bottom is provided with the power that is used for driving the conveyer belt.
2. The simple harmonic motion demonstration device according to claim 1, wherein a lead weight is arranged on the laser pen.
3. A simple harmonic motion presentation device as in claim 1 wherein the conveyor belt is adjustable in speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323188704.XU CN221304128U (en) | 2023-11-25 | 2023-11-25 | Simple harmonic motion demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323188704.XU CN221304128U (en) | 2023-11-25 | 2023-11-25 | Simple harmonic motion demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221304128U true CN221304128U (en) | 2024-07-09 |
Family
ID=91742246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323188704.XU Active CN221304128U (en) | 2023-11-25 | 2023-11-25 | Simple harmonic motion demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221304128U (en) |
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2023
- 2023-11-25 CN CN202323188704.XU patent/CN221304128U/en active Active
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