CN203965038U - A kind of sound wave resonance is surveyed wavelength device - Google Patents
A kind of sound wave resonance is surveyed wavelength device Download PDFInfo
- Publication number
- CN203965038U CN203965038U CN201420411332.4U CN201420411332U CN203965038U CN 203965038 U CN203965038 U CN 203965038U CN 201420411332 U CN201420411332 U CN 201420411332U CN 203965038 U CN203965038 U CN 203965038U
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- audio
- sound wave
- glass tube
- plastic bottle
- wave resonance
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Abstract
The utility model discloses a kind of sound wave resonance and survey wavelength device, comprise iron stand, plastic bottle, proofed sleeve and audio-frequency generator, described iron stand side fixing glass pipe, described iron stand top is provided with loudspeaker, described audio-frequency generator is provided with audio frequency and regulates button, between described loudspeaker and described audio-frequency generator, be connected with power lead, described proofed sleeve one end is communicated with in glass tube lower end, the other end is communicated with in plastic bottle bottom, the utility model, to regulating the problem of water column in glass tube to improve, makes it regulate more simple and easy and can regulate continuously.The error of bringing with the measurement of distance between reducing due to tuning fork and the water surface in the method for the measurement of wavelength having been applied to double measurement sympathetic response.
Description
Technical field
The utility model relates to a kind of sound wave resonance and surveys wavelength device.
Background technology
When the sympathetic response of study sound, we know, during tuning fork sounding, resonant tank is below empathized, and the sound of tuning fork is strengthened, and with tuning fork, also can make air column vibe, the shortest length of the air column of empathizing with a certain sound wave equals 1/4 of this wave length of sound, can in other words, can utilize the sympathetic response of air column to measure the wavelength of sound wave, and equal 1/4 of sound wave at Length of air column, 3/4,5/4 ... Deng times time, phenomenon all can vibe.
The height of the air column phenomenon of empathizing change glass tube by injected water in tank during about the demonstration of the phenomenon of sound wave resonance in middle school's textbook in, thus obtain the wavelength of this sound wave.Its experimental implementation is comparatively loaded down with trivial details, and can not be adjustable continuously, and also has certain error for the fineness of the mouth of pipe and the measurement of wavelength.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of water column that makes and becomes continuously adjustable, and the sound wave resonance of the error that between elimination loudspeaker and the water surface, the measurement of distance brings is surveyed wavelength device.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of sound wave resonance is surveyed wavelength device, comprise iron stand, plastic bottle, proofed sleeve and audio-frequency generator, described iron stand side fixing glass pipe, described iron stand top is provided with loudspeaker, described audio-frequency generator is provided with audio frequency and regulates button, between described loudspeaker and described audio-frequency generator, be connected with power lead, described proofed sleeve one end is communicated with in glass tube lower end, and the other end is communicated with in plastic bottle bottom.
Further technical scheme, described loudspeaker are over against the glass tube mouth of pipe.
Further technical scheme, described diameter glass tube 10 cm, length 80 cm.
Further technical scheme, is marked with a small amount of blue ink in described plastic bottle.
The beneficial effect that the utility model sound wave resonance is surveyed wavelength device is: the utility model, to regulating the problem of water column in glass tube to improve, makes it regulate more simple and easy and can regulate continuously.The error of bringing with the measurement of distance between reducing due to tuning fork and the water surface in the method for the measurement of wavelength having been applied to double measurement sympathetic response.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation that the utility model sound wave resonance is surveyed wavelength device.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Consult a kind of sound wave resonance shown in Fig. 1 and survey wavelength device, comprise iron stand 1, plastic bottle 8, proofed sleeve 7 and audio-frequency generator 2, described iron stand 1 side is fixed with glass tube 4, described iron stand 1 top is provided with loudspeaker 3, described audio-frequency generator 2 is provided with audio frequency and regulates button 5, between described loudspeaker 3 and described audio-frequency generator 2, be connected with power lead 6, described proofed sleeve 7 one end are communicated with in glass tube 4 lower ends, the other end is communicated with in plastic bottle 8 bottoms, described plastic bottle 8 and glass tube 4 form linker structure and are marked with water, linker structure function is by controlling the height of plastic bottle 8, to regulate the water level of glass tube 4.
Described loudspeaker 3 are over against glass tube 4 mouths of pipe.
Described glass tube 4 diameter 10 cm, length 80 cm.
In described plastic bottle 8, be marked with a small amount of blue ink, by blue ink, can observe clearly the variation of water level, the water level position of making glass pipe 4.
Principle of work: to slow injected water in plastic bottle, add blue ink, make the water surface in glass tube approach the mouth of pipe, by audio frequency, regulate button regulating frequency in 440HZ left and right, slowly move down plastic bottle and make past decline of the water surface in glass tube, in a certain position, can hear sound reinforcement, produced resonance phenomenon, regulate plastic bottle height to make sympathetic response reach the strongest, keep that now water surface elevation is constant, on glass tube, mark water outlet face height is A, continuing to move down plastic bottle makes the water surface in glass tube continue to drop to certain altitude, can again hear sound reinforcement, produce second sympathetic response, regulate plastic bottle height to make sympathetic response reach the strongest, keep that now water surface elevation is constant, on glass tube, mark water outlet face height is B, with ruler, measure AB directly apart from s.According to formula s=
, obtain this wave length of sound.
The above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. a sound wave resonance is surveyed wavelength device, it is characterized in that: comprise iron stand, plastic bottle, proofed sleeve and audio-frequency generator, described iron stand side fixing glass pipe, described iron stand top is provided with loudspeaker, described audio-frequency generator is provided with audio frequency and regulates button, between described loudspeaker and described audio-frequency generator, be connected with power lead, described proofed sleeve one end is communicated with in glass tube lower end, and the other end is communicated with in plastic bottle bottom.
2. sound wave resonance according to claim 1 is surveyed wavelength device, it is characterized in that: described loudspeaker are over against the glass tube mouth of pipe.
3. sound wave resonance according to claim 1 is surveyed wavelength device, it is characterized in that: described diameter glass tube 10 cm, length 80cm.
4. sound wave resonance according to claim 1 is surveyed wavelength device, it is characterized in that: in described plastic bottle, be marked with a small amount of blue ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411332.4U CN203965038U (en) | 2014-07-24 | 2014-07-24 | A kind of sound wave resonance is surveyed wavelength device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411332.4U CN203965038U (en) | 2014-07-24 | 2014-07-24 | A kind of sound wave resonance is surveyed wavelength device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965038U true CN203965038U (en) | 2014-11-26 |
Family
ID=51925604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411332.4U Expired - Fee Related CN203965038U (en) | 2014-07-24 | 2014-07-24 | A kind of sound wave resonance is surveyed wavelength device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965038U (en) |
-
2014
- 2014-07-24 CN CN201420411332.4U patent/CN203965038U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |