CN202258048U - Sound standing wave resonance demonstrator - Google Patents
Sound standing wave resonance demonstrator Download PDFInfo
- Publication number
- CN202258048U CN202258048U CN2011203962306U CN201120396230U CN202258048U CN 202258048 U CN202258048 U CN 202258048U CN 2011203962306 U CN2011203962306 U CN 2011203962306U CN 201120396230 U CN201120396230 U CN 201120396230U CN 202258048 U CN202258048 U CN 202258048U
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- glass tube
- standing wave
- ends open
- water receptacle
- sympathetic response
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Abstract
The embodiment of the utility model discloses a sound standing wave resonance demonstrator, which comprises a bracket, a tuning fork, a water container, a glass tube of which two ends are opened and a loud-speaker, wherein the water container is used for accommodating water and arranged on a fixed base of the bracket; one end of the glass tube of which the two ends are opened is arranged under the liquid level of the water container, and the other end of the glass tube is fixed on a vertical displacement device; the vertical displacement device is movably connected with the bracket through a displacement knob; the tuning fork is arranged at the upper opened end of the glass tube of which the two ends are opened and connected with a fixed clamp through a connecting rod; and a microphone of the loud-speaker is arranged at the opening of the upper end of the glass tube of which the two ends are opened. The sound is resonated by changing the height of the liquid in the glass tube and expanded and transmitted to the outside through the loud-speaker; the sound standing wave resonance demonstrator has a novel structure, is convenient to use and is easy to move; furthermore, students can better understand phenomena, such as standing waves, resonance and the like.
Description
Technical field
The utility model relates to a kind of instruments used for education, relates in particular to a kind of sound standing wave sympathetic response demonstration device.
Background technology
Sound wave is that compressional wave is difficult to understand; Will make the student understand the knowledge of sound wave well in the teaching often need be by relevant instruments used for education; The basic way of generally using on the classroom at present of instruments used for education be the teacher through changing the degree of depth of inserting glass tube in the water, tuning fork vibration produces standing wave at air above the mouth of pipe, can hear slight resonance of the voice phenomenon at mouth of pipe place; But can only press close to the mouth of pipe with ear just can hear; Can't let the student of full class hear, and slow, the weak effect of speed when moving glass tube, can not satisfy the need of teaching of the general top class in a kindergarten's teaching of present school with hand.
Summary of the invention
The utility model embodiment technical matters to be solved is, a kind of sound standing wave sympathetic response demonstration device is provided, to overcome the deficiency that existing product sound is little, move weak effect.
In order to solve the problems of the technologies described above; The utility model provides a kind of sound standing wave sympathetic response demonstration device; The glass tube, the loudspeaker that comprise support, tuning fork, water receptacle, both ends open; Said water receptacle is adorned an amount of water and is placed on the firm banking of said support; Glass tube one end of said both ends open places the underwater of said water receptacle, and the other end is fixed on the vertical displacement device, and said vertical displacement device flexibly connects through displacement knob and support; The upper open end that said tuning fork is arranged at the glass tube of said both ends open also is connected with said geometrical clamp through connecting link, and said micropkonic microphone is arranged at the glass tube open upper end place of said both ends open.
Further, the glass tube surface of said both ends open is provided with scale from top to bottom.
Another kind of sound standing wave sympathetic response demonstration device as the same design of the utility model; Comprise support, tuning fork, first glass tube, second glass tube, air bag; Said first, second glass tube bottom is communicated with through pipeline and is fixed on the said support through geometrical clamp; Said tuning fork is fixedly connected and is arranged at the said first end opening on glass place with said support, and said air bag is tightly connected through the flexible pipe and said second port on glass.
Further, said second port on glass is connected with said flexible pipe through air intake valve.
Further, the said first glass tube surface is provided with scale from top to bottom.
Further, also comprise loudspeaker, said micropkonic microphone is arranged at the said first glass tube open upper end place.
Another sound standing wave sympathetic response demonstration device as the same design of the utility model; The glass tube, water receptacle, the air bag that comprise support, tuning fork, both ends open; Said water receptacle is arranged on the holder of said support; Glass tube one end of said both ends open inserts under the liquid level of said water receptacle, and is tightly connected with said water receptacle, and said air bag is tightly connected through air intake valve and said water receptacle; Said tuning fork is arranged at the glass tube open upper end place of said both ends open, and said water receptacle is through the glass tube and the atmosphere of said both ends open.
Further, the glass tube surface of said both ends open is provided with scale from top to bottom.
Further, also comprise loudspeaker, said micropkonic microphone is arranged at the glass tube open upper end place of said both ends open.
Implement the utility model embodiment; Has following beneficial effect: through changing the height of liquid in the glass tube wherein, make the sound generating sympathetic response, enlarge to the external world through loudspeaker and transmit; Has novel structure; Easy to use, move simply, more can let the student further be familiar with the beneficial effects such as standing wave, sympathetic response of sound.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment;
Fig. 2 is the structural representation of the utility model second embodiment;
Fig. 3 is the structural representation of the utility model the 3rd embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done to describe in detail further below.
Structural representation with reference to the utility model first embodiment shown in Figure 1.
In the present embodiment; Sound standing wave sympathetic response demonstration device comprises glass tube 40, the loudspeaker 50 of support 10, tuning fork 20, water receptacle 30, both ends open, and water receptacle 30 filled with water also are positioned on the base 101 of support 10, and glass tube 40 lower ends of both ends open are stretched into below the water surface of water receptacle 30; The upper end is fixed on the geometrical clamp 102 on the vertical displacement device; The vertical displacement device is through displacement knob 103 and support 10 movable being connected, and tuning fork 20 is connected with geometrical clamp 103 through connecting link 104, can conveniently transfer the glass tube 40 of both ends open and the distance that tuning fork 20 leaves liquid level; When glass tube 40 upper orifices of regulating both ends open equal λ/4 to the distance of the water surface; Sympathetic response appears in 3 λ/4,5 λ/4,7 λ/4 (λ is the wavelength of sound in air column) sound standing wave.And in concrete teaching in the process, in order to strengthen teaching effect, make the full classmate of class can both hear that sound is adjusted to the process that sympathetic response changes, micropkonic microphone 501 is arranged at the glass tube 40 open upper end places of both ends open.
More preferably, for more convenient adjusting and checking resonance of the voice position, the glass tube 40 of both ends open down is provided with scale from open upper end.
Structural representation with reference to the utility model second embodiment shown in Figure 2.
In the present embodiment; Sound standing wave sympathetic response demonstration device comprises support 10, tuning fork 20, first glass tube 60, second glass tube 70; Air bag 80, the first glass tubes 60, second glass tube, 70 bottoms are communicated with through pipeline 701, and are fixed on the support 10 through geometrical clamp 103 respectively; Tuning fork is fixed on the support of first glass tube, 60 upper ends; Air bag 80 is tightly connected through the flexible pipe 801 and second glass tube 70, in order better to be 70 inflations of second glass tube, between the flexible pipe 801 and second glass tube 70 unidirectional air intake valve 802 is set.
When experimentizing, in first glass tube 60, second glass tube 70, pour appropriate amount of fluid into, beat tuning fork 20; Change the height of fluid column in first glass tube 60, second glass tube 70 through air bag 80, when the mouth of pipe equals λ/4,3 λ/4 to the distance of liquid level; 5 λ/4; 7 λ/4 o'clock can be heard a plurality ofly to be the standing wave anti-node location just when resonance of the voice occurring, so can find the anti-node location of a plurality of sound standing waves, sympathetic response; In order to make the full classmate of class can both hear that sound is adjusted to the process that sympathetic response changes, with micropkonic microphone 501 first glass tubes 60 open upper end places.
More preferably, for more convenient adjusting and checking resonance of the voice position, first glass tube 60 down is provided with scale from open upper end.
Structural representation with reference to the utility model the 3rd embodiment shown in Figure 3.
In the present embodiment; Sound standing wave sympathetic response demonstration device comprises glass tube 40, water receptacle 30, the air bag 80 of support 10, tuning fork 20, both ends open, and water receptacle 30 injects appropriate amount of fluid and is positioned on the holder 101 of support 10, and glass tube 40 1 ends of both ends open insert under the liquid level of water receptacle 30; Be tightly connected with water receptacle 30 simultaneously; Same, air bag 80 is tightly connected with water receptacle 30, makes water receptacle only can pass through the glass tube 40 and the atmosphere of both ends open.
Tuning fork is fixed on the support at glass tube 40 open upper end places of both ends open.
When experimentizing, beat tuning fork 20, inflate through 80 pairs of water receptacles 30 of air bag; Change the height of fluid column in the glass tube 40 of both ends open, when the mouth of pipe equals λ/4,3 λ/4 to the distance of liquid level; 5 λ/4; 7 λ/4 o'clock can be heard a plurality ofly to be the standing wave anti-node location just when resonance of the voice occurring, so can find the anti-node location of a plurality of sound standing waves, sympathetic response; In order to make the full classmate of class can both hear that sound is adjusted to the process that sympathetic response changes, and is arranged at micropkonic microphone 501 at the glass tube 40 open upper end places of both ends open.
More preferably, for more convenient adjusting and checking resonance of the voice position, the glass tube 40 of both ends open down is provided with scale from open upper end.
Above disclosedly be merely a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, the equivalent variations of therefore being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (9)
1. sound standing wave sympathetic response demonstration device; It is characterized in that; The glass tube, the loudspeaker that comprise support, tuning fork, water receptacle, both ends open, said water receptacle dress water also places on the firm banking of said support, and glass tube one end of said both ends open places the underwater of said water receptacle; The other end is fixed on the vertical displacement device; Said vertical displacement device flexibly connects through displacement knob and support, and the upper open end that said tuning fork is arranged at the glass tube of said both ends open also is connected with said geometrical clamp through connecting link, and said micropkonic microphone is arranged at the glass tube open upper end place of said both ends open.
2. sound standing wave sympathetic response demonstration device according to claim 1 is characterized in that the glass tube surface of said both ends open is provided with scale from top to bottom.
3. sound standing wave sympathetic response demonstration device; It is characterized in that; Comprise support, tuning fork, first glass tube, second glass tube, air bag; Said first, second glass tube bottom is communicated with through pipeline and is fixed on the said support through geometrical clamp, and said tuning fork is fixedly connected and is arranged at the said first end opening on glass place with said support, and said air bag is tightly connected through the flexible pipe and said second port on glass.
4. sound standing wave sympathetic response demonstration device according to claim 3 is characterized in that, the said second glass tube port is connected with said flexible pipe through air intake valve.
5. sound standing wave sympathetic response demonstration device according to claim 4 is characterized in that the said first glass tube surface is provided with scale from top to bottom.
6. according to each described sound standing wave sympathetic response demonstration device of claim 3～5, it is characterized in that also comprise loudspeaker, said micropkonic microphone is arranged at the said first glass tube open upper end place.
7. sound standing wave sympathetic response demonstration device; It is characterized in that; The glass tube, water receptacle, the air bag that comprise support, tuning fork, both ends open, said water receptacle are arranged on the holder of said support, and glass tube one end of said both ends open inserts under the liquid level of said water receptacle; And be tightly connected with said water receptacle; Said air bag is tightly connected through air intake valve and said water receptacle, and said tuning fork is arranged at the glass tube open upper end place of said both ends open, and said water receptacle is through the glass tube and the atmosphere of said both ends open.
8. sound standing wave sympathetic response demonstration device according to claim 7 is characterized in that the glass tube surface of said both ends open is provided with scale from top to bottom.
9. according to claim 7 or 8 described sound standing wave sympathetic response demonstration devices, it is characterized in that also comprise loudspeaker, said micropkonic microphone is arranged at the glass tube open upper end place of said both ends open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203962306U CN202258048U (en) | 2011-10-18 | 2011-10-18 | Sound standing wave resonance demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203962306U CN202258048U (en) | 2011-10-18 | 2011-10-18 | Sound standing wave resonance demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258048U true CN202258048U (en) | 2012-05-30 |
Family
ID=46119258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203962306U Expired - Fee Related CN202258048U (en) | 2011-10-18 | 2011-10-18 | Sound standing wave resonance demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258048U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091499A (en) * | 2014-06-10 | 2014-10-08 | 李建荣 | Sound spreading demonstration device |
| CN105288804A (en) * | 2015-09-26 | 2016-02-03 | 张洋 | Rehabilitation respirator capable of replacing pursed lip breathing |
| CN106023743A (en) * | 2016-07-11 | 2016-10-12 | 重庆理工大学 | Standing wave demonstrator |
| CN106023744A (en) * | 2016-07-11 | 2016-10-12 | 重庆理工大学 | Standing wave demonstration method |
| CN109937445A (en) * | 2016-11-01 | 2019-06-25 | 株式会社小泉制作所 | Drinking container for dry cup and the like and drinking container for bell |
-
2011
- 2011-10-18 CN CN2011203962306U patent/CN202258048U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091499A (en) * | 2014-06-10 | 2014-10-08 | 李建荣 | Sound spreading demonstration device |
| CN105288804A (en) * | 2015-09-26 | 2016-02-03 | 张洋 | Rehabilitation respirator capable of replacing pursed lip breathing |
| CN106023743A (en) * | 2016-07-11 | 2016-10-12 | 重庆理工大学 | Standing wave demonstrator |
| CN106023744A (en) * | 2016-07-11 | 2016-10-12 | 重庆理工大学 | Standing wave demonstration method |
| CN106023743B (en) * | 2016-07-11 | 2018-12-28 | 重庆理工大学 | A kind of standing wave demonstrating instrument |
| CN106023744B (en) * | 2016-07-11 | 2019-01-08 | 重庆理工大学 | standing wave demonstration method |
| CN109937445A (en) * | 2016-11-01 | 2019-06-25 | 株式会社小泉制作所 | Drinking container for dry cup and the like and drinking container for bell |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20161018 |