CN202650362U - Teaching demonstration model for noise reduction effect influenced by sound insulating material - Google Patents
Teaching demonstration model for noise reduction effect influenced by sound insulating material Download PDFInfo
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- CN202650362U CN202650362U CN 201220214972 CN201220214972U CN202650362U CN 202650362 U CN202650362 U CN 202650362U CN 201220214972 CN201220214972 CN 201220214972 CN 201220214972 U CN201220214972 U CN 201220214972U CN 202650362 U CN202650362 U CN 202650362U
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A teaching demonstration model for noise reduction effect influenced by sound insulating materials is provided. The teaching demonstration model comprises a sound insulation room, a sound source apparatus, a sound source support device, and a sound pressure meter. The teaching demonstration model can observe noise reduction effect influenced by different sound insulating materials to noises of same frequency, the observation is completed through replacing the sound insulation rooms of various materials, and the teaching demonstration model can also investigate the noise reduction effect by the sound insulation room of same material to noises of various frequencies. The teaching demonstration model has total six sound insulation rooms of various materials. The model improves intuitiveness of the teaching, is simple in structure and easy to carry, and the model can be flexiblely assembled.
Description
Affiliated technical field
The utility model relates to a kind of teaching mode, especially relates to a kind of sound insulating material to the demonstration model for teaching of the impact of noise reduction.
Background technology
Along with the development of the modern industry, environmental pollution also produces thereupon, and noise pollution is exactly a kind of of environmental pollution, and noise pollution is more and more serious, the mankind's health and environment has been caused very large threat.
In the teaching process of sound insulation, lack the intuitive of teaching, the student understands difficulty, and the classroom is dull, and teaching efficiency is bad.The purpose of this utility model provides the good teaching mode of a kind of teaching efficiency.
The content of courses of regular higher education Eleventh Five-Year Plan National planning teaching material " physical pollution control " first published of publishing according to Higher Education Publishing House, to a kind of noise control technique---content and the principle of sound insulation use, and built a sound insulating material to the demonstration model for teaching of the impact of defening effect.There is not at present the teaching mode about sound insulation.
The utility model content
In the sound insulation teaching process, lack the teaching intuitive, the problem such as the student understands difficulty, and the classroom is dull, and teaching efficiency is bad, the novel purpose of this experiment provides the good teaching mode of a kind of teaching efficiency.
For achieving the above object, the technical scheme of employing of the present utility model is: a kind of sound insulating material is to the demonstration model for teaching of noise reduction, and it is by acoustic booth, sonic source device, and the sound source bracing or strutting arrangement, sound pressure meter forms.Sound insulationg board by unlike material in this demonstration model for teaching forms respectively acoustic booth, the sound source bracing or strutting arrangement is fixed on sonic source device the center of acoustic booth, and the space between acoustic booth and the sound source be sound source take up space more than 1/3, the space between each internal face and the sound source is not less than 100mm.Sonic source device can be connected with extraneous power supply by the wire that is positioned at the sound source bracing or strutting arrangement, send the adjustable noise of frequency, and the material of sound source bracing or strutting arrangement is damping material.Outside acoustic booth, use sound pressure meter can measure the noise of different azimuth through the noise decibel behind the acoustic booth, this utility model can be observed different sound insulating materials to the noise reduction impact of same frequency noise by the material of changing acoustic booth, also can observe same sound insulating material to the noise reduction of different frequency noise by the frequency that changes sound source.This teaching mode can be demonstrated the acoustic booth of 6 kinds of different sound insulation materials, is respectively steel, aluminium, and wood, glass, plastics, gypsum, and every kind of material sound insulationg board has 6, totally 36.
The utility model is novel in design, teaching is convenient, vivid, make things convenient for the student to understand the intuitive that improves teaching, simple in structure, assembling flexibly, easy to carry, can finish under the noise of same frequency, different sound insulation materials also can be finished same sound insulation material to the demonstration of the noise reduction of the noise of different frequency to the demonstration of noise reduction impact.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structure principle chart of the present utility model.
Among the figure, 1. acoustic booth, 2. sonic source device, 3. sound source bracing or strutting arrangement, 4. sound pressure meter, 5. wire, 6. sealing strip.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the technical scheme in the utility model is clearly and completely described.
Embodiment of the present utility model is the demonstration model for teaching that a kind of sound insulating material affects noise reduction, and shown in figure one, this device comprises acoustic booth 1, sonic source device 2, and sound source bracing or strutting arrangement 3, sound pressure meter 4 forms.Acoustic booth 1 in this teaching mode is comprised of the sound insulationg board of one group of material of the same race, and the selection length of side is 0.3m, and thickness is the square sound insulationg board of 0.02m, and the material of selected sound insulationg board is for can be steel, aluminium, wood, glass, plastics, gypsum.
Further, sound source bracing or strutting arrangement 3 is fixed on sonic source device 2 center of acoustic booth 1, sonic source device 2 can be connected with external power supply by the wire 5 that is positioned at sound source bracing or strutting arrangement 3, sends the adjustable noise of frequency, measures the noise decibel of different azimuth at acoustic booth 1 outer use sound pressure meter 4.This utility model can be observed different sound insulating materials to the noise reduction impact of same frequency noise by the material of changing acoustic booth 1, also can observe same sound insulating material to the noise reduction of different frequency noise by the frequency that changes sound source.
Claims (5)
1. a sound insulating material comprises acoustic booth to the demonstration model for teaching of defening effect impact, sonic source device, and the sound source bracing or strutting arrangement, sound pressure meter is characterized in that acoustic booth is the square that the sound insulationg board by 6 material same thickness of the same race forms, and seals; The sound source bracing or strutting arrangement is fixed on sonic source device the center of acoustic booth, and sonic source device is connected with external power supply by the wire that is arranged in the sound source bracing or strutting arrangement.
2. demonstration model for teaching according to claim 1 is characterized in that: the space between described acoustic booth and the sound source be sound source take up space more than 1/3, the space length between each internal face and the sound source is not less than 100mm.
3. demonstration model for teaching according to claim 1, it is characterized in that: the material of described sound source bracing or strutting arrangement is damping material.
4. demonstration model for teaching according to claim 1, it is characterized in that: described sonic source device can send the noise of different frequency.
5. demonstration model for teaching according to claim 1, it is characterized in that: the material of described sound insulationg board has 6 kinds, is respectively steel, aluminium, wood, glass, plastics, gypsum, and every kind of material sound insulationg board has 6, totally 36.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214972 CN202650362U (en) | 2012-05-15 | 2012-05-15 | Teaching demonstration model for noise reduction effect influenced by sound insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214972 CN202650362U (en) | 2012-05-15 | 2012-05-15 | Teaching demonstration model for noise reduction effect influenced by sound insulating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650362U true CN202650362U (en) | 2013-01-02 |
Family
ID=47419432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220214972 Expired - Fee Related CN202650362U (en) | 2012-05-15 | 2012-05-15 | Teaching demonstration model for noise reduction effect influenced by sound insulating material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023767A (en) * | 2016-07-11 | 2016-10-12 | 江苏建筑职业技术学院 | Noise pollution experience area and construction method |
| CN108961957A (en) * | 2018-07-25 | 2018-12-07 | 王小兰 | A kind of noise reduction apparatus for demonstrating |
-
2012
- 2012-05-15 CN CN 201220214972 patent/CN202650362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023767A (en) * | 2016-07-11 | 2016-10-12 | 江苏建筑职业技术学院 | Noise pollution experience area and construction method |
| CN108961957A (en) * | 2018-07-25 | 2018-12-07 | 王小兰 | A kind of noise reduction apparatus for demonstrating |
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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: 20130102 Termination date: 20130515 |