CN202373290U - Acoustic standing wave experimental instrument - Google Patents
Acoustic standing wave experimental instrument Download PDFInfo
- Publication number
- CN202373290U CN202373290U CN2011203512003U CN201120351200U CN202373290U CN 202373290 U CN202373290 U CN 202373290U CN 2011203512003 U CN2011203512003 U CN 2011203512003U CN 201120351200 U CN201120351200 U CN 201120351200U CN 202373290 U CN202373290 U CN 202373290U
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- CN
- China
- Prior art keywords
- standing wave
- fuselage
- utility
- model
- acoustic standing
- 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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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses an acoustic standing wave experimental instrument. The experimental instrument comprises an instrument body. The instrument body is provided with a note button. The instrument body is also communicated with a transparent tube. Plastic particles are arranged in the transparent tube. An audio generator is disposed inside the instrument body. The beneficial effects of the utility model are that the acoustic standing wave experimental instrument is simple in structure, low in cost and beautiful in appearance.
Description
Technical field
The utility model relates to a kind of sound standing wave experiment instrument.
Background technology
Now also there is not a kind of ability to observe the experiment equipment of sound variation through the sound standing wave experiment instrument.
Summary of the invention
To the deficiency of prior art, the utility model provides a kind of novel sound standing wave experiment instrument.
To achieve these goals, the measure taked of the utility model:
The sound standing wave experiment instrument comprises fuselage, and said fuselage is provided with the note button, also is communicated with transparent tube on the said fuselage, is provided with plastic grain in the said transparent tube, and is provided with audio-frequency generator in the fuselage.
Said fuselage also is provided with conversion automatic note button, signal lamp and shift knob.
The beneficial effect of the utility model: the utility model is simple in structure, and cost is low, and is attractive in appearance.
Description of drawings
Fig. 1, the structural representation of the utility model.
Embodiment
The sound standing wave experiment instrument comprises fuselage 1, and said fuselage 1 is provided with note button 5, also is communicated with transparent tube 2 on the said fuselage 1, is provided with plastic grain 3 in the said transparent tube 2, and is provided with audio-frequency generator in the fuselage 1.Said fuselage 1 also is provided with the automatic note button of conversion 4, signal lamp 6 and shift knob 7.
Standing wave is that two opposite train wave superpositions of the direction of propagation form by amplitude, frequency, direction of vibration are all identical; In the utility model, the other end of the incident acoustic wave that sends by audio-frequency generator in transparent tube take place reflection and with the mutual superposition of incident acoustic wave.Amplitude at two ripple overlapping place each points is synthesized by the amplitude that two ripples cause, wherein the maximum point of superposition amplitude is called antinode, and particle vibration here is the fiercest; The minimum point of amplitude is called node, particle transfixion here, and amplitude is zero.Distance is 1/2 wavelength between two antinodes (or two node), and distance is 1/4 wavelength between antinode and node.
The beneficial effect of the utility model: the utility model is simple in structure, and cost is low, and is attractive in appearance.
Those skilled in the art's simple change and replacement all are within the protection domain of the utility model in this area.
Claims (2)
1. sound standing wave experiment instrument; Comprise fuselage (1), said fuselage (1) is provided with note button (5), it is characterized in that: also be communicated with transparent tube (2) on the said fuselage (1); Be provided with plastic grain (3) in the said transparent tube (2), and be provided with audio-frequency generator in the fuselage (1).
2. a kind of sound standing wave experiment instrument as claimed in claim 1 is characterized in that: said fuselage (1) also is provided with conversion automatic note button (4), signal lamp (6) and shift knob (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203512003U CN202373290U (en) | 2011-09-19 | 2011-09-19 | Acoustic standing wave experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203512003U CN202373290U (en) | 2011-09-19 | 2011-09-19 | Acoustic standing wave experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373290U true CN202373290U (en) | 2012-08-08 |
Family
ID=46596984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203512003U Expired - Fee Related CN202373290U (en) | 2011-09-19 | 2011-09-19 | Acoustic standing wave experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373290U (en) |
-
2011
- 2011-09-19 CN CN2011203512003U patent/CN202373290U/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: 20120808 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |