CN203858791U - Sound energy experimental instrument - Google Patents
Sound energy experimental instrument Download PDFInfo
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- CN203858791U CN203858791U CN201420304329.2U CN201420304329U CN203858791U CN 203858791 U CN203858791 U CN 203858791U CN 201420304329 U CN201420304329 U CN 201420304329U CN 203858791 U CN203858791 U CN 203858791U
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- resonant cavity
- sound source
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Abstract
The utility model discloses a sound energy experimental instrument. The sound energy experimental instrument comprises a base (1), a sound source generator (2), a resonant cavity (3) and an object placing table (4), wherein the base (1) comprises an upper housing (1.1) and a lower housing (1.2); the resonant cavity (3) and the object placing table (4) are mounted on the upper housing (1.1); the sound source generator (2) is mounted inside the resonant cavity (3); a small hole (3.1) for allowing the sound energy to be sent out is formed in the resonant cavity (3); the sound source generator (2) comprises a loudspeaker; a microphone is connected onto the loudspeaker; a partition board (3.2) is arranged inside the resonant cavity (3); a sound source transmission hole (3.3) is formed in the middle of the partition board (3.2). Adopting the sound energy experimental instrument provided by the utility model, an observer can visually observe the process of energy conversion, understand and master the characteristics of the sound energy.
Description
Technical field
The utility model relates to teaching aid field, is more particularly a kind of acoustic energy experiment instrument of the use of imparting knowledge to students.
Background technology
As everyone knows, between multi-form energy, mutual conversion can occur, for example, light energy conversion is electric energy; Mechanical energy is converted into electric energy; Electric energy conversion is heat energy or luminous energy; Etc..More than be common Conversion of Energy phenomenon, in addition, we also can change by familiar acoustic energy.
Yet, for the energy conversion of acoustic energy, be difficult to observe significantly, usually need to realize by means of experiment instrument.Sound is that the vibration due to object produces, and when sound is propagated in air, can cause the vibration of air, and propagate in air in the mode of sound wave.Any type of ripple all has energy, and the sound of propagating in air also has energy; By the demonstration of this experiment, can prove that sound propagates in the mode of ripple, and there is energy.Sound wave also has application in weapon simultaneously, and for example, modern sound wave weapon, even can destroy firm defence fort.
In the prior art, also not can be used in demonstrating sound wave energy conversion, to prove that sound wave has the experiment instrument of energy, learner cannot observe and learn the These characteristics of sound wave intuitively.
Utility model content
In view of this, the object of the utility model is to provide a kind of acoustic energy experiment instrument, to solve the existing technical matters that cannot intuitively observe acoustic wave energy conversion of above-mentioned prior art.
Technical solution of the present utility model is, a kind of acoustic energy experiment instrument of following structure is provided, comprise base, sound source generator, resonant cavity and articles holding table, described base comprises upper shell and lower house, described resonant cavity and articles holding table are installed on upper shell, described sound generator is installed in resonant cavity, and described resonant cavity is provided with the aperture spreading out of for acoustic energy.
Adopt above structure, the utility model compared with prior art, have the following advantages: (for example on articles holding table, place the object of lighter weight, shuttlecock, the candle of lighting), by sound source generator sounding, sound can grow from weak to strong, and resonate in resonant cavity, finally from resonant cavity, spread out of, the energy of sound wave can push shuttlecock or candle is blown out from articles holding table, by acoustic energy, is converted into wind energy or mechanical energy, observer can observe the process of acoustic wave energy conversion intuitively, understands and grasp the feature of acoustic energy.
As improvement, described sound source generator comprises loudspeaker, is connected with microphone on loudspeaker; In described resonant cavity, be provided with dividing plate, in the middle of dividing plate, be provided with sound source transmission hole.Owing to being provided with dividing plate in resonant cavity, can being convenient to sound source and resonating with air in resonant cavity, thereby object is pushed away from articles holding table, or puff the candle out.
As improvement, described resonant cavity is arranged on upper shell by supporting seat, and described articles holding table is fixed on upper shell by bracing frame.Like this, can regulate the relative height of resonant cavity and articles holding table, thereby make the height of aperture consistent with the height of object on articles holding table, improve demonstration effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model acoustic energy experiment instrument.
Shown in figure: 1, base, 1.1, upper shell, 1.2, lower house, 2, sound source generator, 3, resonant cavity, 3.1, aperture, 3.2, dividing plate, 3.3, sound source transmission hole, 4, articles holding table, 5, supporting seat, 5.1, pedestal, 5.2, support bar, 6, bracing frame.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but the present invention is not restricted to these embodiment.
The present invention contain any in marrow of the present utility model and scope, make substitute, modification, equivalent method and scheme.In order to make the public that the utility model is had thoroughly and be understood, in following the utility model preferred embodiment, describe concrete details in detail, and do not have for a person skilled in the art the description of these details also can understand the utility model completely.
As shown in Figure 1, acoustic energy experiment instrument of the present utility model, comprise base 1, sound source generator 2, resonant cavity 3 and articles holding table 4, described base 1 comprises upper shell 1.1 and lower house 1.2, described resonant cavity 3 and articles holding table 4 are installed on upper shell 1.1, described sound generator 2 is installed in resonant cavity 3, and described resonant cavity 3 is provided with the aperture 3.1 spreading out of for acoustic energy.
Described sound source generator 2 comprises loudspeaker, is connected with microphone on loudspeaker; In described resonant cavity 3, be provided with dividing plate 3.2, in the middle of dividing plate 3.2, be provided with sound source transmission hole 3.3.Microphone can adopt commercially available conventional microphone, but condenser type high-fidelity microphone better effects if, not signal in figure, but those of ordinary skills know correlation technique.
Described resonant cavity 3 is arranged on upper shell 1.1 by supporting seat 5, and described articles holding table 4 is fixed on upper shell 1.1 by bracing frame 6.Described supporting seat 5 comprises pedestal 5.1 and support bar 5.2, and described pedestal 5.1 is slidably connected with support bar 5.2, and resonant cavity is fixed on support bar.
Resonant cavity 3 can adopt transparent material to make, as acrylic material.
During application the utility model, adopt following steps to carry out:
1. experiment instrument is positioned on level table;
2. by adapter, connecting civil power powers to loudspeaker;
3. opening power;
4. the candle of lighting or feather are placed on the articles holding table before resonant cavity;
5. microphone is connected with loudspeaker, facing to microphone, speaks or shout, sound grows from weak to strong;
6. can see that candle extinguishes or feather blows away.
Below only with regard to the utility model preferred embodiment, be described, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various variations of doing in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (3)
1. an acoustic energy experiment instrument, comprise base (1), sound source generator (2), resonant cavity (3) and articles holding table (4), described base (1) comprises upper shell (1.1) and lower house (1.2), it is characterized in that: described resonant cavity (3) and articles holding table (4) are installed on upper shell (1.1), described sound source generator (2) is installed in resonant cavity (3), and described resonant cavity (3) is provided with the aperture (3.1) spreading out of for acoustic energy.
2. acoustic energy experiment instrument according to claim 1, is characterized in that: described sound source generator (2) comprises loudspeaker, is connected with microphone on loudspeaker; In described resonant cavity (3), be provided with dividing plate (3.2), in the middle of dividing plate (3.2), be provided with sound source transmission hole (3.3).
3. acoustic energy experiment instrument according to claim 1 and 2, is characterized in that: it is upper that described resonant cavity (3) is arranged on upper shell (1.1) by supporting seat (5), and described articles holding table (4) is fixed on upper shell (1.1) by bracing frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304329.2U CN203858791U (en) | 2014-06-10 | 2014-06-10 | Sound energy experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304329.2U CN203858791U (en) | 2014-06-10 | 2014-06-10 | Sound energy experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858791U true CN203858791U (en) | 2014-10-01 |
Family
ID=51608633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420304329.2U Expired - Fee Related CN203858791U (en) | 2014-06-10 | 2014-06-10 | Sound energy experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858791U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575192A (en) * | 2014-12-25 | 2015-04-29 | 惠州学院 | Glass cup resonance breaking demonstration instrument |
| CN107610566A (en) * | 2017-09-11 | 2018-01-19 | 贵州大学 | A kind of Physical Experiment teaching aid structure for demonstrating sound transmission energy |
| CN110232852A (en) * | 2019-07-16 | 2019-09-13 | 莱芜职业技术学院 | A kind of sound transmission demonstration teaching aid |
-
2014
- 2014-06-10 CN CN201420304329.2U patent/CN203858791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575192A (en) * | 2014-12-25 | 2015-04-29 | 惠州学院 | Glass cup resonance breaking demonstration instrument |
| CN107610566A (en) * | 2017-09-11 | 2018-01-19 | 贵州大学 | A kind of Physical Experiment teaching aid structure for demonstrating sound transmission energy |
| CN110232852A (en) * | 2019-07-16 | 2019-09-13 | 莱芜职业技术学院 | A kind of sound transmission demonstration teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20180610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |