CN201681517U - Acoustic vibration demonstration device - Google Patents
Acoustic vibration demonstration device Download PDFInfo
- Publication number
- CN201681517U CN201681517U CN2010202116508U CN201020211650U CN201681517U CN 201681517 U CN201681517 U CN 201681517U CN 2010202116508 U CN2010202116508 U CN 2010202116508U CN 201020211650 U CN201020211650 U CN 201020211650U CN 201681517 U CN201681517 U CN 201681517U
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- China
- Prior art keywords
- straight tube
- acoustic vibration
- rubber
- students
- demonstration device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an acoustic vibration demonstration device, and belongs to the field of physical teaching aids. The structure of the acoustic vibration demonstration device comprises a straight tube, a sound amplifying device, a rubber and a lightweight small ball, wherein the straight tube is disposed into a cylinder, two ends thereof are provided with openings, the sound amplifying device is arranged at the inner end of the straight tube, the rubber is arranged at the opening of one end of the straight tube, and the lightweight is arranged at the middle position of the outside surface of the rubber. Compared with the prior art, the utility model improves the schoolteaching efficiency, and is convenient for remembering relevant knowledge to students, during the teacher is in schoolteaching, the acoustic vibration regular can be easily seen by the students by the demonstration device, thereby improving the learning interest. The interest in physical knowledge of the students can be gradually cultured by using the teaching aid to teach, then the students can keep studying and progressing in the interest, and the phenomenon that the boring character makes student feel tire can be eliminated.
Description
1, technical field
The utility model relates to the physical teaching aid technical field, specifically a kind of acoustic vibration apparatus for demonstrating.
2, background technology
In the existing physics teaching, method with experimental demonstration is even more important, not only can allow the student see the phenomenon of physics intuitively, and the more deep grasp series knowledge of method that can be by experiment, in the teaching of acoustic vibration, teacher just explains by telling about with the mode of literal on the classroom, also not having a kind of teaching aid intuitively to allow the student see the rule of acoustic vibration intuitively, is numerous teachers' teaching purpose place so how to allow the student that the knowledge of sound wave is obtained demonstrating in apparatus for demonstrating.
3, summary of the invention
The utility model is at above-mentioned the deficiencies in the prior art, and a kind of acoustic vibration apparatus for demonstrating is provided.
A kind of acoustic vibration apparatus for demonstrating of the present utility model is realized in the following manner, structure comprises straight tube, public address set, rubber and lightweight bead, wherein straight tube is arranged to cylindric, and both ends open, public address set is arranged on the inner of straight tube, rubber is arranged on an end opening place of straight tube, and the lightweight bead is arranged on the centre position of rubber lateral surface.
The end face both sides of straight tube are provided with handle.
The utility model is compared with prior art, has following outstanding beneficial effect:
(1) improve the efficient of giving lessons, be convenient to the student and remember relevant knowledge, teacher can allow the student see the rule of acoustic vibration by apparatus for demonstrating in the process of giving lessons easily.
(2) improve learning interest, utilize the mode of teaching aid teaching, can progressively cultivate the interest of students, in interest, improve constantly school grade then, eliminated the phenomenon that allows the student be weary of because of uninteresting literal for physical knowledge.
4, description of drawings
Fig. 1 is a kind of structural representation of A-A section of acoustic vibration apparatus for demonstrating;
Fig. 2 is a kind of perspective view of acoustic vibration apparatus for demonstrating.
Description of reference numerals: 1, straight tube, 2, public address set, 3, rubber, 4, the lightweight bead, 5, handle.
5, embodiment
Explain below with reference to Figure of description a kind of acoustic vibration apparatus for demonstrating of the present utility model being done.
As shown in Figure 1 and Figure 2, a kind of acoustic vibration apparatus for demonstrating structure of the present utility model comprises straight tube 1, public address set 2, rubber 3 and lightweight bead 4, wherein straight tube 1 is arranged to cylindric, and both ends open, public address set 2 is arranged on the inner of straight tube 1, rubber 3 is arranged on an end opening place of straight tube 1, and lightweight bead 4 is arranged on the centre position of rubber 3 lateral surfaces, and the end face both sides of straight tube 1 are provided with handle 5.
The concrete using method of a kind of acoustic vibration apparatus for demonstrating of the present utility model is as described below:
The user speaks up facing to the opening part of straight tube 1, add the effect that amplifies of public address set 2, cause the vibration of air, drive the vibration of rubber 3 then, finally cause the vibration of lightweight bead 4, and along with the different of the power of sound and frequency and change, when loud, the vibration frequency of rubber 3 is big, sound hour, the vibration frequency of rubber 3 is little, and the student can see the amplitude size variation of vibration by lightweight bead 4.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1. acoustic vibration apparatus for demonstrating, it is characterized in that comprising straight tube, public address set, rubber and lightweight bead, wherein straight tube is arranged to cylindric, and both ends open, public address set is arranged on the inner of straight tube, rubber is arranged on an end opening place of straight tube, and the lightweight bead is arranged on the centre position of rubber lateral surface.
2. a kind of acoustic vibration apparatus for demonstrating according to claim 1 is characterized in that the end face both sides of straight tube are provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202116508U CN201681517U (en) | 2010-06-01 | 2010-06-01 | Acoustic vibration demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202116508U CN201681517U (en) | 2010-06-01 | 2010-06-01 | Acoustic vibration demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681517U true CN201681517U (en) | 2010-12-22 |
Family
ID=43346554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202116508U Expired - Fee Related CN201681517U (en) | 2010-06-01 | 2010-06-01 | Acoustic vibration demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681517U (en) |
-
2010
- 2010-06-01 CN CN2010202116508U patent/CN201681517U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20120601 |